1
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Clarke RW, Caputo MR, Polo Fonseca L, McGraw ML, Reilly LT, Franklin KA, Müller AJ, Chen EYX. Cyclic and Linear Tetrablock Copolymers Synthesized at Speed and Scale by Lewis Pair Polymerization of a One-Pot (Meth)acrylic Mixture and Characterized at Multiple Levels. J Am Chem Soc 2024; 146:4930-4941. [PMID: 38346332 DOI: 10.1021/jacs.3c14136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Cyclic block copolymers (cBCP) are fundamentally intriguing materials, but their synthetic challenges that demand precision in controlling both the monomer sequence and polymer topology limit access to AB and ABC block architectures. Here, we show that cyclic ABAB tetra-BCPs (cABAB) and their linear counterpart (lABAB) can be readily obtained at a speed and scale from one-pot (meth)acrylic monomer mixtures, through coupling the Lewis pair polymerization's unique compounded-sequence control with its precision in topology control. This approach achieves fast (<15 min) and quantitative (>99%) conversion to tetra-BCPs of predesignated linear or cyclic topology at scale (40 g) in a one-pot procedure, precluding the needs for repeated chain extensions, stoichiometric addition steps, dilute conditions, and postsynthetic modifications, and/or postsynthetic ring-closure steps. The resulting lABAB and cABAB have essentially identical molecular weights (Mn = 165-168 kg mol-1) and block degrees/symmetry, allowing for direct behavioral comparisons in solution (hydrodynamic volume, intrinsic viscosity, elution time, and refractive indices), bulk (thermal transitions), and film (thermomechanical and rheometric properties and X-ray scattering patterns) states. To further the morphological characterizations, allylic side-chain functionality is exploited via the thiol-ene click chemistry to install crystalline octadecane side chains and promote phase separation between the A and B blocks, allowing visualization of microdomain formation.
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Affiliation(s)
- Ryan W Clarke
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Maria Rosaria Caputo
- Polymat and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Lucas Polo Fonseca
- Polymat and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Michael L McGraw
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Liam T Reilly
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Kevin A Franklin
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Alejandro J Müller
- Polymat and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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2
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Chen C, Weil T. Cyclic polymers: synthesis, characteristics, and emerging applications. NANOSCALE HORIZONS 2022; 7:1121-1135. [PMID: 35938292 DOI: 10.1039/d2nh00242f] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cyclic polymers with a ring-like topology and no chain ends are a unique class of macromolecules. In the past several decades, significant advances have been made to prepare these fascinating polymers, which allow for the exploration of their topological effects and potential applications in various fields. In this Review, we first describe representative synthetic strategies for making cyclic polymers and their derivative topological polymers with more complex structures. Second, the unique physical properties and self-assembly behavior of cyclic polymers are discussed by comparing them with their linear analogues. Special attention is paid to highlight how polymeric rings can assemble into hierarchical macromolecular architectures. Subsequently, representative applications of cyclic polymers in different fields such as drug and gene delivery and surface functionalization are presented. Last, we envision the following key challenges and opportunities for cyclic polymers that may attract future attention: large-scale synthesis, efficient purification, programmable folding and assembly, and expansion of applications.
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Affiliation(s)
- Chaojian Chen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, USA
| | - Tanja Weil
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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3
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Zhou J, Yang J, Ishaq MW, Li L. Study of Linear and Cyclic Graft Polystyrenes with Identical Backbone Contour in Dilute Solutions: Preparation, Characterization, and Conformational Properties. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02029] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jianing Zhou
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, Anhui, China
- Food Science and Processing Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jinxian Yang
- Food Science and Processing Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Muhammad Waqas Ishaq
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Lianwei Li
- Food Science and Processing Research Center, College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
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4
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The Shackling Effect in Cyclic Azobenzene Liquid Crystal. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2675-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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5
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Kang J, Zhu J, Lin J, Han C, Liu K, Wang X. Ring Size-Dependent Solution Behavior of Macrocycles: Dipole–Dipole Attraction Counteracted by Excluded Volume Repulsion. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jing Kang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Junli Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Chenglong Han
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Kun Liu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China
| | - Xiaosong Wang
- Department of Chemistry, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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6
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Effect of stereochemistry on nanoscale assembly of ABA triblock copolymers with crystallizable blocks. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Xu Y, Dong SL, Yan XS, Wang Q, Li Z, Jiang YB. Nanosphere [Ag(SR)] n: coordination polymers of Ag + with a combination of hydrophilic and hydrophobic thiols. Chem Commun (Camb) 2021; 57:4311-4314. [PMID: 33913983 DOI: 10.1039/d1cc00880c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We propose to create nanospheres in aqueous solutions from coordination polymers of Ag+ with a combination of a hydrophilic and a hydrophobic thiol, of diameter ca. 2.7 nm in the case of using cysteine and n-butanethiol. A spectral probe for the formation of the nanospheres is a reversal of the CD signal at 253 nm from negative in the case of cysteine alone to positive when cysteine and n-BuSH are both employed, together with an amplification.
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Affiliation(s)
- Yan Xu
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM, Xiamen University, Xiamen 361005, China.
| | - Su-Li Dong
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM, Xiamen University, Xiamen 361005, China.
| | - Xiao-Sheng Yan
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM, Xiamen University, Xiamen 361005, China.
| | - Qian Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM, Xiamen University, Xiamen 361005, China.
| | - Zhao Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM, Xiamen University, Xiamen 361005, China.
| | - Yun-Bao Jiang
- Department of Chemistry, College of Chemistry and Chemical Engineering, the MOE Key Laboratory of Spectrochemical Analysis and Instrumentation and iChEM, Xiamen University, Xiamen 361005, China.
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8
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Xu J, Wen L, Zhang F, Lin W, Zhang L. Self-assembly of cyclic grafted copolymers with rigid rings and their potential as drug nanocarriers. J Colloid Interface Sci 2021; 597:114-125. [PMID: 33892419 DOI: 10.1016/j.jcis.2021.03.139] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/20/2021] [Accepted: 03/24/2021] [Indexed: 01/23/2023]
Abstract
Enhancing the performance of polymer micelles by purposeful regulation of their structures is a challenging topic that receives widespread attention. In this study, we systematically conduct a comparative study between cyclic grafted copolymers with rigid and flexible rings in the self-assembly behavior via dissipative particle dynamics (DPD) simulation. With a focus on the possible stacking ways of rigid rings, we propose the energy-driven packing mechanism of cyclic grafted copolymers with rigid rings. For cyclic grafted copolymers with large ring size (14 and 21-membered rings), rigid rings present a novel channel-layer-combination layout, which is determined by the balance between the potential energy of micelles (Emicelle) and the interaction energy between water and micelles (Eint). Based on this mechanism, we further regulate a series of complex self-assembling structures, including curved rod-like, T-shape, annular and helical micelles. Compared with flexible copolymers, cyclic grafted copolymers with rigid rings provide a larger and loose hydrophobic core and higher structural stability with micelles due to the unique packing way of rigid rings. Therefore, their micelles have a great potential as drug nanocarriers. They possess a better drug loading capacity and disassemble more quickly than flexible counterparts under acidic tumor microenvironment. Furthermore, the endocytosis kinetics of rigid micelles is faster than the flexible counterparts for the adsorption and wrapping process. This study may provide a reasonable idea of structural design for polymer micelles to enhance their performance in biomedical applications.
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Affiliation(s)
- Jianchang Xu
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Liyang Wen
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Fusheng Zhang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China.
| | - Lijuan Zhang
- Guangdong Provincial Key Lab of Green Chemical Product Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
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9
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10
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Trachsel L, Romio M, Zenobi-Wong M, Benetti EM. Hydrogels Generated from Cyclic Poly(2-Oxazoline)s Display Unique Swelling and Mechanical Properties. Macromol Rapid Commun 2020; 42:e2000658. [PMID: 33326133 DOI: 10.1002/marc.202000658] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/20/2020] [Indexed: 12/14/2022]
Abstract
Cyclic macromolecules do not feature chain ends and are characterized by a higher effective intramolecular repulsion between polymer segments, leading to a higher excluded-volume effect and greater hydration with respect to their linear counterparts. As a result of these unique properties, hydrogels composed of cross-linked cyclic polymers feature enhanced mechanical strength while simultaneously incorporating more solvent with respect to networks formed from their linear analogues with identical molar mass and chemical composition. The translation of topology effects by cyclic polymers into the properties of polymer networks provides hydrogels that ideally do not include defects, such as dangling chain ends, and display unprecedented physicochemical characteristics.
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Affiliation(s)
- Lucca Trachsel
- Tissue Engineering + Biofabrication Laboratory, Department of Health Sciences and Technology, ETH Zürich, Zürich, 8093, Switzerland
| | - Matteo Romio
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich, 8093, Switzerland.,Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St., Gallen, Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering + Biofabrication Laboratory, Department of Health Sciences and Technology, ETH Zürich, Zürich, 8093, Switzerland
| | - Edmondo M Benetti
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich, 8093, Switzerland.,Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St., Gallen, Switzerland
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11
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Size and shape of cycloamylose estimated using column chromatography coupled with small-angle X-ray scattering. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Schroffenegger M, Leitner NS, Morgese G, Ramakrishna SN, Willinger M, Benetti EM, Reimhult E. Polymer Topology Determines the Formation of Protein Corona on Core-Shell Nanoparticles. ACS NANO 2020; 14:12708-12718. [PMID: 32865993 PMCID: PMC7596783 DOI: 10.1021/acsnano.0c02358] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 08/31/2020] [Indexed: 05/08/2023]
Abstract
Linear and cyclic poly(2-ethyl-2-oxazoline) (PEOXA) adsorbates provide excellent colloidal stability to superparamagnetic iron oxide nanoparticles (FexOy NPs) within protein-rich media. However, dense shells of linear PEOXA brushes cannot prevent weak but significant attractive interactions with human serum albumin. In contrast, their cyclic PEOXA counterparts quantitatively hinder protein adsorption, as demonstrated by a combination of dynamic light scattering and isothermal titration calorimetry. The cyclic PEOXA brushes generate NP shells that are denser and more compact than their linear counterparts, entirely preventing the formation of a protein corona as well as aggregation, even when the lower critical solution temperature of PEOXA in a physiological buffer is reached.
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Affiliation(s)
- Martina Schroffenegger
- Institute
for Biologically Inspired Materials, Department of Nanobiotechnology, University of Resources and Life Sciences, Muthgasse 11, A-1190 Vienna, Austria
| | - Nikolaus S. Leitner
- Institute
for Biologically Inspired Materials, Department of Nanobiotechnology, University of Resources and Life Sciences, Muthgasse 11, A-1190 Vienna, Austria
| | - Giulia Morgese
- Polymer
Surfaces Group, Laboratory for Surface Science and Technology, Department
of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zürich, Switzerland
| | - Shivaprakash N. Ramakrishna
- Polymer
Surfaces Group, Laboratory for Surface Science and Technology, Department
of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zürich, Switzerland
| | - Max Willinger
- Institute
for Biologically Inspired Materials, Department of Nanobiotechnology, University of Resources and Life Sciences, Muthgasse 11, A-1190 Vienna, Austria
| | - Edmondo M. Benetti
- Polymer
Surfaces Group, Laboratory for Surface Science and Technology, Department
of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, CH-8093 Zürich, Switzerland
| | - Erik Reimhult
- Institute
for Biologically Inspired Materials, Department of Nanobiotechnology, University of Resources and Life Sciences, Muthgasse 11, A-1190 Vienna, Austria
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13
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Trachsel L, Romio M, Grob B, Zenobi-Wong M, Spencer ND, Ramakrishna SN, Benetti EM. Functional Nanoassemblies of Cyclic Polymers Show Amplified Responsiveness and Enhanced Protein-Binding Ability. ACS NANO 2020; 14:10054-10067. [PMID: 32628438 DOI: 10.1021/acsnano.0c03239] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The physicochemical properties of cyclic polymer adsorbates are significantly influenced by the steric and conformational constraints introduced during their cyclization. These translate into a marked difference in interfacial properties between cyclic polymers and their linear counterparts when they are grafted onto surfaces yielding nanoassemblies or polymer brushes. This difference is particularly clear in the case of cyclic polymer brushes that are designed to chemically interact with the surrounding environment, for instance, by associating with biological components present in the medium, or, alternatively, through a response to a chemical stimulus by a significant change in their properties. The intrinsic architecture characterizing cyclic poly(2-oxazoline)-based polyacid brushes leads to a broad variation in swelling and nanomechanical properties in response to pH change, in comparison with their linear analogues of identical composition and molecular weight. In addition, cyclic glycopolymer brushes derived from polyacids reveal an enhanced exposure of galactose units at the surface, due to their expanded topology, and thus display an increased lectin-binding ability with respect to their linear counterparts. This combination of amplified responsiveness and augmented protein-binding capacity renders cyclic brushes invaluable building blocks for the design of "smart" materials and functional biointerfaces.
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Affiliation(s)
- Lucca Trachsel
- Tissue Engineering + Biofabrication Laboratory, Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Matteo Romio
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich; Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Benjamin Grob
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich; Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering + Biofabrication Laboratory, Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Nicholas D Spencer
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich; Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Shivaprakash N Ramakrishna
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich; Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
| | - Edmondo M Benetti
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich; Vladimir-Prelog-Weg 5, 8093 Zürich, Switzerland
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14
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Liénard R, Duez Q, Grayson SM, Gerbaux P, Coulembier O, De Winter J. Limitations of ion mobility spectrometry-mass spectrometry for the relative quantification of architectural isomeric polymers: A case study. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34 Suppl 2:e8660. [PMID: 31732989 DOI: 10.1002/rcm.8660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/12/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
UNLABELLED Since their discovery, cyclic polymers have attracted great interest because of their unique properties. Today, the preparation of these macrocyclic structures still remains a challenge for polymer chemists, and most of the preparation pathways lead to an inescapable contamination by linear by-products. As the properties of the polymers are closely related to their structure, it is of prime importance to be able to assess the architectural purity of a sample. METHODS In this work, the suitability of ion mobility spectrometry-mass spectrometry (IMS-MS) for the quantification of two isomers was investigated. A cyclic poly(L-lactide) was prepared through photodimerization of its linear homologue. Since IMS-MS can be used to differentiate cyclic polymer ions from their linear analogues because of their more compact three-dimensional conformation, the present work envisaged the use of IMS-MS for the quantification of residual linear polymers within the cyclic polymer sample. RESULTS Using the standard addition method to plot calibration curves, the fraction of linear contaminants in the sample was determined. By doing so, unrealistically high values of contamination were measured. CONCLUSIONS These results were explained by an ionization efficiency issue. This work underlines some intrinsic limitations when using IMS-MS in the context of the relative quantification of isomers having different ionization efficiencies. Nevertheless, the linear-to-cyclic ratio can be roughly estimated by this method.
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Affiliation(s)
- Romain Liénard
- Interdisciplinary Center for Mass Spectrometry, Organic Synthesis and Mass Spectrometry Laboratory, University of Mons-UMONS, Mons, Belgium
- Center of Innovation and Research in Materials and Polymers, Laboratory of Polymeric and Composite Materials, University of Mons-UMONS, Belgium
| | - Quentin Duez
- Interdisciplinary Center for Mass Spectrometry, Organic Synthesis and Mass Spectrometry Laboratory, University of Mons-UMONS, Mons, Belgium
| | - Scott M Grayson
- Department of Chemistry, Tulane University, New Orleans, Los Angeles, USA
| | - Pascal Gerbaux
- Interdisciplinary Center for Mass Spectrometry, Organic Synthesis and Mass Spectrometry Laboratory, University of Mons-UMONS, Mons, Belgium
| | - Olivier Coulembier
- Center of Innovation and Research in Materials and Polymers, Laboratory of Polymeric and Composite Materials, University of Mons-UMONS, Belgium
| | - Julien De Winter
- Interdisciplinary Center for Mass Spectrometry, Organic Synthesis and Mass Spectrometry Laboratory, University of Mons-UMONS, Mons, Belgium
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15
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Romio M, Trachsel L, Morgese G, Ramakrishna SN, Spencer ND, Benetti EM. Topological Polymer Chemistry Enters Materials Science: Expanding the Applicability of Cyclic Polymers. ACS Macro Lett 2020; 9:1024-1033. [PMID: 35648599 DOI: 10.1021/acsmacrolett.0c00358] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Polymer-topology effects can alter technologically relevant properties when cyclic macromolecules are applied within diverse materials formulations. These include coatings, polymer networks, or nanostructures for delivering therapeutics. While substituting linear building blocks with cyclic analogues in commonly studied materials is itself of fundamental interest, an even more fascinating observation has been that the introduction of physical or chemical boundaries (e.g., a grafting surface or cross-links) can amplify the topology-related effects observed when employing cyclic polymer-based precursors for assembling multidimensional objects. Hence, the application of cyclic polymers has enabled the fabrication of coatings with enhanced biorepellency and superior lubricity, broadened the tuning potential for mechanical properties of polymer networks, increased the thermodynamic stability, and altered the capability of loading and releasing drugs within polymeric micelles.
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Affiliation(s)
- Matteo Romio
- Laboratory for Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Lucca Trachsel
- Laboratory for Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
- Tissue Engineering + Biofabrication Laboratory, Department of Health Sciences and Technology, ETH Zürich, 8093 Zürich, Switzerland
| | - Giulia Morgese
- Laboratory for Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
| | - Shivaprakash N. Ramakrishna
- Laboratory for Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
| | - Nicholas D. Spencer
- Laboratory for Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
| | - Edmondo M. Benetti
- Laboratory for Surface Science and Technology, Department of Materials, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
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16
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Liénard R, De Winter J, Coulembier O. Cyclic polymers: Advances in their synthesis, properties, and biomedical applications. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200236] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Romain Liénard
- Laboratory of Polymeric and Composite Materials (LPCM) Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons Mons Belgium
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs) Interdisciplinary Center for Mass Spectrometry (CISMa), University of Mons Mons Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs) Interdisciplinary Center for Mass Spectrometry (CISMa), University of Mons Mons Belgium
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials (LPCM) Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons Mons Belgium
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17
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Ungpittagul T, Wongmahasirikun P, Phomphrai K. Synthesis and characterization of guanidinate tin(ii) complexes for ring-opening polymerization of cyclic esters. Dalton Trans 2020; 49:8460-8471. [PMID: 32315017 DOI: 10.1039/d0dt01115k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Novel homoleptic and heteroleptic (guanidinate)tin(ii) complexes were successfully synthesized and structurally characterized. The first heteroleptic (guanidinato)tin(ii) alkoxide complex was synthesized but found to be unstable leading to the corresponding bis(guanidinate)tin(ii) complex. The catalytic activities of bis(guanidinate)tin(ii) complexes having different substituents at the nitrogen atoms (isopropyl (1), cyclohexyl (2), and p-tolyl (3)) were investigated in the ring-opening polymerization (ROP) of ε-caprolactone (ε-CL) and lactide (LA). The lone-pair electrons of the tin(ii) atom were proposed to act as an initiator similar to N-heterocyclic carbenes. Among the synthesized catalysts, complex 1 having less steric hindrance efficiently catalyzed both homo- and copolymerizations of ε-CL and LA giving high molecular weight cyclic polyesters. Transesterification was found to be the major contributor to the cyclization to cyclic polyesters.
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Affiliation(s)
- Thasanaporn Ungpittagul
- Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, Thailand.
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18
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Haque FM, Grayson SM. The synthesis, properties and potential applications of cyclic polymers. Nat Chem 2020; 12:433-444. [DOI: 10.1038/s41557-020-0440-5] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 02/14/2020] [Indexed: 11/09/2022]
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19
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Goodson AD, Troxler JE, Rick MS, Ashbaugh HS, Albert JNL. Impact of Cyclic Block Copolymer Chain Architecture and Degree of Polymerization on Nanoscale Domain Spacing: A Simulation and Scaling Theory Analysis. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b02015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Amy D. Goodson
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70118, United States
| | - Jessie E. Troxler
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70118, United States
| | - Maxwell S. Rick
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70118, United States
| | - Henry S. Ashbaugh
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70118, United States
| | - Julie N. L. Albert
- Department of Chemical and Biomolecular Engineering, Tulane University, New Orleans, Louisiana 70118, United States
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20
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Yan W, Ramakrishna SN, Romio M, Benetti EM. Bioinert and Lubricious Surfaces by Macromolecular Design. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13521-13535. [PMID: 31532689 DOI: 10.1021/acs.langmuir.9b02316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The modification of a variety of biomaterials and medical devices often encompasses the generation of biopassive and lubricious layers on their exposed surfaces. This is valid when the synthetic supports are required to integrate within physiological media without altering their interfacial composition and when the minimization of shear stress prevents or reduces damage to the surrounding environment. In many of these cases, hydrophilic polymer brushes assembled from surface-interacting polymer adsorbates or directly grown by surface-initiated polymerizations (SIP) are chosen. Although growing efforts by polymer chemists have been focusing on varying the composition of polymer brushes in order to attain increasingly bioinert and lubricious surfaces, the precise modulation of polymer architecture has simultaneously enabled us to substantially broaden the tuning potential for the above-mentioned properties. This feature article concentrates on reviewing this latter strategy, comparatively analyzing how polymer brush parameters such as molecular weight and grafting density, the application of block copolymers, the introduction of branching and cross-links, or the variation of polymer topology beyond the simple, linear chains determine highly technologically relevant properties, such as biopassivity and lubrication.
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Affiliation(s)
- Wenqing Yan
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Shivaprakash N Ramakrishna
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
| | - Matteo Romio
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
| | - Edmondo M Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials , Swiss Federal Institute of Technology (ETH Zürich) , Vladimir-Prelog-Weg 1-5/10 , CH-8093 Zurich , Switzerland
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (Empa) , Lerchenfeldstrasse 5 , CH-9014 St. Gallen , Switzerland
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21
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Gartner TE, Haque FM, Gomi AM, Grayson SM, Hore MJA, Jayaraman A. Scaling Exponent and Effective Interactions in Linear and Cyclic Polymer Solutions: Theory, Simulations, and Experiments. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00600] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Farihah M. Haque
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Aila M. Gomi
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Scott M. Grayson
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Michael J. A. Hore
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
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22
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Ramakrishna SN, Morgese G, Zenobi-Wong M, Benetti EM. Comblike Polymers with Topologically Different Side Chains for Surface Modification: Assembly Process and Interfacial Physicochemical Properties. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02549] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Divandari M, Trachsel L, Yan W, Rosenboom JG, Spencer ND, Zenobi-Wong M, Morgese G, Ramakrishna SN, Benetti EM. Surface Density Variation within Cyclic Polymer Brushes Reveals Topology Effects on Their Nanotribological and Biopassive Properties. ACS Macro Lett 2018; 7:1455-1460. [PMID: 35651229 DOI: 10.1021/acsmacrolett.8b00847] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
While topology effects by cyclic polymers in solution and melts are well-known, their translation into the interfacial properties of polymer "brushes" provides new opportunities to impart enhanced surface lubricity and biopassivity to inorganic surfaces, above and beyond that expected for linear analogues of identical composition. The impact of polymer topology on the nanotribological and protein-resistance properties of polymer brushes is revealed by studying linear and cyclic poly(2-ethyl-2-oxazoline) (PEOXA) grafts presenting a broad range of surface densities and while shearing them alternatively against an identical brush or a bare inorganic surface. The intramolecular constraints introduced by the cyclization provide a valuable increment in both steric stabilization and load-bearing capacity for cyclic brushes. Moreover, the intrinsic absence of chain ends within cyclic adsorbates hinders interpenetration between opposing brushes, as they are slid over each other, leading to a reduction in the friction coefficient (μ) at higher pressures, a phenomenon not observed for linear grafts. The application of cyclic polymers for the modification of inorganic surfaces generates films that outperform both the nanotribological and biopassive properties of linear brushes, significantly expanding the design possibilities for synthetic biointerfaces.
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Affiliation(s)
- Mohammad Divandari
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Zürich, Switzerland
| | - Lucca Trachsel
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Zürich, Switzerland
- Tissue Engineering and Biofabrication, Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Wenqing Yan
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Zürich, Switzerland
| | - Jan-Georg Rosenboom
- Institute of Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
| | - Nicholas D. Spencer
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Zürich, Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering and Biofabrication, Department of Health Sciences and Technology, ETH Zürich, Zürich, Switzerland
| | - Giulia Morgese
- Institute for Complex Molecular Systems, Technical University of Eindhoven (TU/e), Eindhoven, The Netherlands
| | - Shivaprakash N. Ramakrishna
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Zürich, Switzerland
| | - Edmondo M. Benetti
- Polymer Surfaces Group, Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich, Zürich, Switzerland
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24
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25
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Iwamoto T, Doi Y, Kinoshita K, Takano A, Takahashi Y, Kim E, Kim TH, Takata SI, Nagao M, Matsushita Y. Conformations of Ring Polystyrenes in Semidilute Solutions and in Linear Polymer Matrices Studied by SANS. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00934] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Takuro Iwamoto
- Department of Molecular and Macromolecular Chemistry, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Yuya Doi
- Department of Molecular and Macromolecular Chemistry, Nagoya University, Nagoya, Aichi 464-8603, Japan
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Keita Kinoshita
- Department of Molecular and Macromolecular Chemistry, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Atsushi Takano
- Department of Molecular and Macromolecular Chemistry, Nagoya University, Nagoya, Aichi 464-8603, Japan
| | - Yoshiaki Takahashi
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan
| | - Eunhye Kim
- HANARO Research Reactor Utilization Development, Korea Atomic Energy Research Institute (KAERI), Daejeon 305-353, Korea
| | - Tae-Hwan Kim
- HANARO Research Reactor Utilization Development, Korea Atomic Energy Research Institute (KAERI), Daejeon 305-353, Korea
| | - Shin-ichi Takata
- J-PARC Center, Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
| | - Michihiro Nagao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, United States
- Center for Exploration of Energy and Matter, Indiana University, Bloomington, Indiana 47408, United States
| | - Yushu Matsushita
- Department of Molecular and Macromolecular Chemistry, Nagoya University, Nagoya, Aichi 464-8603, Japan
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26
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Isono T, Sasamori T, Honda K, Mato Y, Yamamoto T, Tajima K, Satoh T. Multicyclic Polymer Synthesis through Controlled/Living Cyclopolymerization of α,ω-Dinorbornenyl-Functionalized Macromonomers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00355] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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27
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Gaitho FM, Mola GT, Pellicane G. Computational approach to the study of morphological properties of polymer/fullerene blends in photovoltaics. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Organic solar cells have the ability to transform solar energy efficiently and have a promising energy balance. Producing these cells is economical and makes use of methods of printing using inks built on solvents that are well-matched with a variety of cheap materials like flexible plastic or paper. The primary materials used to manufacture organic solar cells include carbon-based semiconductors, which are good light absorbers and efficient charge generators. In this article, we review previous research of interest based on morphology of polymer blends used in bulk heterojunction (BHJ) solar cells and introduce their basic principles. We further review computational models used in the analysis of surface behavior of polymer blends in BHJ as well as the trends in the field of polymer surface science as applied to BHJ photovoltaics. We also give in brief, the opportunities and challenges in the area of polymer blends on BHJ organic solar cells.
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Affiliation(s)
- Francis M. Gaitho
- School of Chemistry and Physics , University of KwaZulu-Natal, Pietermaritzburg campus , Private Bag X01 , Scottsville 3209 , South Africa
| | - Genene T. Mola
- School of Chemistry and Physics , University of KwaZulu-Natal, Pietermaritzburg campus , Private Bag X01 , Scottsville 3209 , South Africa
| | - Giuseppe Pellicane
- School of Chemistry and Physics , University of KwaZulu-Natal, Pietermaritzburg campus , Private Bag X01 , Scottsville 3209 , South Africa
- National Institute of Theoretical Physics (NITheP) KZN node , Pietermaritzburg , South Africa
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28
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Linear and cyclic amylose derivatives having brush like side groups in solution: Amylose tris(n-octadecylcarbamate)s. POLYMER 2018. [DOI: 10.1016/j.polymer.2017.12.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Yan W, Divandari M, Rosenboom JG, Ramakrishna SN, Trachsel L, Spencer ND, Morgese G, Benetti EM. Design and characterization of ultrastable, biopassive and lubricious cyclic poly(2-alkyl-2-oxazoline) brushes. Polym Chem 2018. [DOI: 10.1039/c7py02137b] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Bilayer films featuring cyclic, poly(2-alkyl-2-oxazoline) brush interfaces display excellent biopassivity, lubrication and long-term stability in chemically harsh aqueous environments.
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Affiliation(s)
- Wenqing Yan
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Mohammad Divandari
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Jan-Georg Rosenboom
- Institute for Chemical and Bioengineering
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- 8093 Zürich
- Switzerland
| | | | - Lucca Trachsel
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Nicholas D. Spencer
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Giulia Morgese
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Edmondo M. Benetti
- Laboratory for Surface Science and Technology
- Department of Materials
- ETH Zürich
- 8093 Zürich
- Switzerland
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30
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Kelly GM, Haque FM, Grayson SM, Albert JNL. Suppression of Melt-Induced Dewetting in Cyclic Poly(ε-caprolactone) Thin Films. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02200] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni M. Kelly
- Department
of Chemical and Biomolecular Engineering and ‡Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Farihah M. Haque
- Department
of Chemical and Biomolecular Engineering and ‡Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Scott M. Grayson
- Department
of Chemical and Biomolecular Engineering and ‡Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Julie N. L. Albert
- Department
of Chemical and Biomolecular Engineering and ‡Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
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31
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Jung JH, Kumar Mohanty A, Ye J, Lee T, Ahn J, Lim YG, Chang T, Paik HJ. Covalent fixed multicyclic polystyrene conformers. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28869] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ji-Hye Jung
- Department of Polymer Science and Engineering; Pusan National University; Busan 46241 Korea
- The 4th R&D Institute-2, Agency for Defense Development; Daejeon 34186 Korea
| | - Aruna Kumar Mohanty
- Department of Polymer Science and Engineering; Pusan National University; Busan 46241 Korea
| | - Jihwa Ye
- Department of Polymer Science and Engineering; Pusan National University; Busan 46241 Korea
| | - Taeheon Lee
- Department of Polymer Science and Engineering; Pusan National University; Busan 46241 Korea
| | - Junyoung Ahn
- Division of Advanced Materials Science and Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Korea
| | - Yeong-Gweon Lim
- The 4th R&D Institute-2, Agency for Defense Development; Daejeon 34186 Korea
| | - Taihyun Chang
- Division of Advanced Materials Science and Department of Chemistry; Pohang University of Science and Technology (POSTECH); Pohang 37673 Korea
| | - Hyun-Jong Paik
- Department of Polymer Science and Engineering; Pusan National University; Busan 46241 Korea
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32
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Divandari M, Morgese G, Trachsel L, Romio M, Dehghani ES, Rosenboom JG, Paradisi C, Zenobi-Wong M, Ramakrishna SN, Benetti EM. Topology Effects on the Structural and Physicochemical Properties of Polymer Brushes. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01720] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
| | - Giulia Morgese
- Cartilage
Engineering + Regeneration Laboratory, Department of Health Sciences
and Technology, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Lucca Trachsel
- Cartilage
Engineering + Regeneration Laboratory, Department of Health Sciences
and Technology, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Matteo Romio
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35030 Padova, Italy
| | | | | | - Cristina Paradisi
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35030 Padova, Italy
| | - Marcy Zenobi-Wong
- Cartilage
Engineering + Regeneration Laboratory, Department of Health Sciences
and Technology, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
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33
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Gavrilov M, Amir F, Kulis J, Hossain MD, Jia Z, Monteiro MJ. Densely Packed Multicyclic Polymers. ACS Macro Lett 2017; 6:1036-1041. [PMID: 35650884 DOI: 10.1021/acsmacrolett.7b00574] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Highly dense polymer chains were formed through coupling cyclic polymeric units in a sequence controlled manner. It was found that as the number of cyclic units increased the compactness substantially increased in a good solvent to a limiting value after only 12 units. This limiting value was close to that of a linear polymer chain in a θ solvent, in which polymer segment interactions with solvent are minimized. This remarkable result suggests that the unique architecture of the cyclic structure plays an important role to significantly change the polymer conformation and remain soluble in solution, which circumvents the need for cross-linking. The insight found in this work provides a physical mechanism as to why Nature uses cyclic structures in proteins to confer stability and the compacting of DNA strands to induce chromosome territories.
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Affiliation(s)
- Mikhail Gavrilov
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Faheem Amir
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Jakov Kulis
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Md. D. Hossain
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Zhongfan Jia
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
| | - Michael J. Monteiro
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, Brisbane QLD 4072, Australia
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34
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Benetti EM, Divandari M, Ramakrishna SN, Morgese G, Yan W, Trachsel L. Loops and Cycles at Surfaces: The Unique Properties of Topological Polymer Brushes. Chemistry 2017; 23:12433-12442. [DOI: 10.1002/chem.201701940] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Edmondo M. Benetti
- Laboratory for Surface Science and Technology; ETH Zürich; Rämistrasse 101 8092 Zürich Switzerland
- Department of Materials Science and Technology of Polymers; MESA+ Institute for Nanotechnology; University of Twente, P.O. Box 217; 7500 AE Enschede The Netherlands
| | - Mohammad Divandari
- Laboratory for Surface Science and Technology; ETH Zürich; Rämistrasse 101 8092 Zürich Switzerland
| | | | - Giulia Morgese
- Laboratory for Surface Science and Technology; ETH Zürich; Rämistrasse 101 8092 Zürich Switzerland
| | - Wenqing Yan
- Laboratory for Surface Science and Technology; ETH Zürich; Rämistrasse 101 8092 Zürich Switzerland
| | - Lucca Trachsel
- Laboratory for Surface Science and Technology; ETH Zürich; Rämistrasse 101 8092 Zürich Switzerland
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35
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Ryoki A, Yokobatake H, Hasegawa H, Takenaka A, Ida D, Kitamura S, Terao K. Topology-Dependent Chain Stiffness and Local Helical Structure of Cyclic Amylose Tris(3,5-dimethylphenylcarbamate) in Solution. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00706] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Akiyuki Ryoki
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hiromi Yokobatake
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
| | - Hirokazu Hasegawa
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
- Materials
Characterization Laboratories, Toray Research Center, Inc., 3-3-7, Sonoyama, Otsu, Shiga 520-8567, Japan
| | - Aya Takenaka
- Materials
Characterization Laboratories, Toray Research Center, Inc., 3-3-7, Sonoyama, Otsu, Shiga 520-8567, Japan
| | - Daichi Ida
- Department
of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan
| | - Shinichi Kitamura
- Graduate
School of Life and Environmental Sciences, Osaka Prefecture University, Gakuen-cho,
Nakaku, Sakai 599-8531, Japan
| | - Ken Terao
- Department
of Macromolecular Science, Graduate School of Science, Osaka University, 1-1
Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan
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36
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Scattering function of semi-rigid cyclic polymers analyzed in terms of worm-like rings: cyclic amylose tris(phenylcarbamate) and cyclic amylose tris(n-butylcarbamate). Polym J 2017. [DOI: 10.1038/pj.2017.27] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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37
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Aoki D, Aibara G, Uchida S, Takata T. A Rational Entry to Cyclic Polymers via Selective Cyclization by Self-Assembly and Topology Transformation of Linear Polymers. J Am Chem Soc 2017; 139:6791-6794. [DOI: 10.1021/jacs.7b01151] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daisuke Aoki
- Department
of Chemical Science and Engineering, Tokyo Institute of Technology and ‡JST-CREST, Ookayama, Meguro, Tokyo 152-8552, Japan
| | - Gouta Aibara
- Department
of Chemical Science and Engineering, Tokyo Institute of Technology and ‡JST-CREST, Ookayama, Meguro, Tokyo 152-8552, Japan
| | - Satoshi Uchida
- Department
of Chemical Science and Engineering, Tokyo Institute of Technology and ‡JST-CREST, Ookayama, Meguro, Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department
of Chemical Science and Engineering, Tokyo Institute of Technology and ‡JST-CREST, Ookayama, Meguro, Tokyo 152-8552, Japan
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38
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Blasco E, Tuten BT, Frisch H, Lederer A, Barner-Kowollik C. Characterizing single chain nanoparticles (SCNPs): a critical survey. Polym Chem 2017. [DOI: 10.1039/c7py01278k] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We provide the results of a critical literature survey on the reported sizes of single chain polymer nanoparticles (SCNPs) employing different techniques.
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Affiliation(s)
- Eva Blasco
- Macromolecular Architectures
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Bryan T. Tuten
- Macromolecular Architectures
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
| | - Hendrik Frisch
- School of Chemistry
- Physics and Mechanical Engineering
- Queensland University of Technology (QUT)
- Australia
| | - Albena Lederer
- Leibniz Institut für Polymerforschung Dresden
- D-01069 Dresden
- Germany
- Technische Universität Dresden
- D-01062 Dresden
| | - Christopher Barner-Kowollik
- Macromolecular Architectures
- Institut für Technische Chemie und Polymerchemie
- Karlsruhe Institute of Technology (KIT)
- 76131 Karlsruhe
- Germany
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39
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Zhu L, Wang X, Li J, Wang Y. Radius of Gyration, Mean Span, and Geometric Shrinking Factors of Bridged Polycyclic Ring Polymers. MACROMOL THEOR SIMUL 2016. [DOI: 10.1002/mats.201600033] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lijuan Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Department of Polymer Science and Engineering; College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 199 Ren-ai Road Suzhou 215123 P. R. China
| | - Xiaoyan Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Department of Polymer Science and Engineering; College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 199 Ren-ai Road Suzhou 215123 P. R. China
| | - Jianfeng Li
- The State Key Laboratory of Molecular Engineering of Polymers; Department of Macromolecular Science; Fudan University; Shanghai 200433 P. R. China
| | - Yanwei Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials; Department of Polymer Science and Engineering; College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 199 Ren-ai Road Suzhou 215123 P. R. China
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40
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Valentina S, Ogawa T, Nakazono K, Aoki D, Takata T. Efficient Synthesis of Cyclic Block Copolymers by Rotaxane Protocol by Linear/Cyclic Topology Transformation. Chemistry 2016; 22:8759-62. [DOI: 10.1002/chem.201601266] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Stephanie Valentina
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Takahiro Ogawa
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Kazuko Nakazono
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Daisuke Aoki
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials Tokyo Institute of Technology 2-12-1 O-okayama, Meguro-ku Tokyo 152-8552 Japan
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41
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Lee T, Oh J, Jeong J, Jung H, Huh J, Chang T, Paik HJ. Figure-Eight-Shaped and Cage-Shaped Cyclic Polystyrenes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00093] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Taeheon Lee
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Korea
| | - Joongsuk Oh
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Korea
| | - Jonghwa Jeong
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Korea
| | - Haeji Jung
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Korea
| | - June Huh
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Korea
| | - Taihyun Chang
- Department of Chemistry and Division of Advanced Materials Science, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Korea
| | - Hyun-jong Paik
- Department of Polymer Science and Engineering, Pusan National University, Busan, 46241, Korea
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42
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Doi Y, Iwasa Y, Watanabe K, Nakamura M, Takano A, Takahashi Y, Matsushita Y. Synthesis and Characterization of Comb-Shaped Ring Polystyrenes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00208] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Yuya Doi
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yutaro Iwasa
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Kazuki Watanabe
- Scientific Instruments
Division, Shoko Scientific Co., Ltd., 1-3-3 Azaminominami, Aoba-ku, Yokohama, Kanagawa 225-0012, Japan
| | - Masahide Nakamura
- Scientific Instruments
Division, Shoko Scientific Co., Ltd., 1-3-3 Azaminominami, Aoba-ku, Yokohama, Kanagawa 225-0012, Japan
| | - Atsushi Takano
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
| | - Yoshiaki Takahashi
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1,
Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Yushu Matsushita
- Department of Applied
Chemistry, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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43
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TERAO K, RYOKI A. Novel Synthesis of Rigid Cyclic Polymers and Their Molecular Conformation and Intermolecular Interactions in Solution. KOBUNSHI RONBUNSHU 2016. [DOI: 10.1295/koron.2016-0037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ken TERAO
- Department of Macromolecular Science, Osaka University
| | - Akiyuki RYOKI
- Department of Macromolecular Science, Osaka University
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44
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Magerl D, Philipp M, Metwalli E, Gutfreund P, Qiu XP, Winnik FM, Müller-Buschbaum P. Influence of Confinement on the Chain Conformation of Cyclic Poly( N-isopropylacrylamide). ACS Macro Lett 2015; 4:1362-1365. [PMID: 35614783 DOI: 10.1021/acsmacrolett.5b00676] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In thin and ultrathin supported films, the conformations of flexible linear polymer chains might be considerably confined, in particular, for film thicknesses smaller than a few times the radius of gyration. For ring polymers in solution or in melt, the radii of gyration are significantly reduced as compared to those of their linear counterparts. We study here the influence of geometrical confinement on the chain conformation of cyclic PNIPAM in silicon-supported films. Measurements are performed by grazing incidence small angle neutron scattering (GISANS). For all films, the component of the radius of gyration parallel to the substrate, Rgc∥, is significantly higher than the unperturbed Rgc determined under theta solvent or melt conditions. We attribute this effect to a preferential selection of stretched PNIPAM ring conformations in thin films and a preferential orientation of macromolecules parallel to the film interfaces with the substrate and air.
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Affiliation(s)
- David Magerl
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Martine Philipp
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Ezzeldin Metwalli
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Philipp Gutfreund
- Institut Laue-Langevin, 71 avenue
des Martyrs, 38000 Grenoble, France
| | - Xing-Ping Qiu
- Faculty
of Pharmacy and Department of Chemistry, Université de Montréal, CP 6128 Succursale Centre Ville, Montréal QC H3C 3J7, Canada
| | - Françoise M. Winnik
- Faculty
of Pharmacy and Department of Chemistry, Université de Montréal, CP 6128 Succursale Centre Ville, Montréal QC H3C 3J7, Canada
- World Premier International
(WPI) Research Center Initiative, International Center for Materials
Nanoarchitectonics (MANA) and National Institute for Materials Science
(NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan
| | - Peter Müller-Buschbaum
- Lehrstuhl
für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
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45
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Jeong J, Kim H, Lee S, Choi H, Jeon HB, Paik HJ. Improved synthesis of bicyclic polystyrenes by ATRP and “click” reaction. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Wu J, Qu TG, Gao LF, Yang XM, Li XH, Tu YF, Zhu XL. Special odd-even effect of degree of oligomerization on properties of cyclic oligoesters. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1675-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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Ogawa T, Nakazono K, Aoki D, Uchida S, Takata T. Effective Approach to Cyclic Polymer from Linear Polymer: Synthesis and Transformation of Macromolecular [1]Rotaxane. ACS Macro Lett 2015; 4:343-347. [PMID: 35596318 DOI: 10.1021/acsmacrolett.5b00067] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a convenient and scalable synthesis of cyclic poly(ε-caprolactone) (PCL) from its linear counterpart based on the rotaxane protocol. Cyclic PCL was prepared by ring-opening polymerization of ε-caprolactone (ε-CL) initiated by a pseudo[2]rotaxane initiator in the presence of diphenylphosphate (DPP) as a catalyst, followed by capping of the propagation end by using a bulky isocyanate to afford macromolecular [2]rotaxane. The successive intramolecular cyclization to macromolecular [1]rotaxane at the polymer terminus proceeded with good yield. The attractive interaction of the terminal ammonium/crown ether moiety was removed via N-acetylation. This enabled movement of the crown ether wheel along the axle PCL chain to the urethane region of the other terminus in solution state. Size-exclusion chromatography and 2D diffusion-ordered spectroscopy (DOSY) results demonstrated the formation of cyclic PCL from linear PCL, which is further supported by thermal property or crystallinity change before and after transformation.
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Affiliation(s)
- Takahiro Ogawa
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Kazuko Nakazono
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Daisuke Aoki
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Satoshi Uchida
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
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48
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IDA D. Dilute Solution Properties of Nonlinear Semiflexible Polymers: Crossover from the Rigid Chain to the Random Coil. KOBUNSHI RONBUNSHU 2015. [DOI: 10.1295/koron.2015-0013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Daichi IDA
- Department of Polymer Chemistry, Kyoto University
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49
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Ogawa T, Usuki N, Nakazono K, Koyama Y, Takata T. Linear–cyclic polymer structural transformation and its reversible control using a rational rotaxane strategy. Chem Commun (Camb) 2015; 51:5606-9. [DOI: 10.1039/c4cc08982k] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new strategy for “polymer structural transformation” was developed. One [1]rotaxane unit was introduced at the chain end of a linear polymer and the wheel component position was defined by controlling the attractive interaction between the polymer ends. Thus, the reversible linear–cyclic structural transformation was demonstrated.
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Affiliation(s)
- Takahiro Ogawa
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Naoya Usuki
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Kazuko Nakazono
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Yasuhito Koyama
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
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50
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Abstract
This review describes the self-assembly of polymers with a cyclic topology and highlights how cyclization affects the resulting assemblies.
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