1
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Dmitrenko ME, Kuzminova AI, Zolotarev AA, Korniak AS, Ermakov SS, Su R, Penkova AV. Novel mixed matrix membranes based on polyelectrolyte complex modified with fullerene derivatives for enhanced pervaporation and nanofiltration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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2
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Abstract
Abstract
Theoretical and computational chemistry aims to develop chemical theory and to apply numerical computation and simulation to reveal the mechanism behind complex chemical phenomena via quantum theory and statistical mechanics. Computation is the third pillar of scientific research together with theory and experiment. Computation enables scientists to test, discover, and build models/theories of the corresponding chemical phenomena. Theoretical and computational chemistry has been advanced to a new era due to the development of high-performance computational facilities and artificial intelligence approaches. The tendency to merge electronic structural theory with quantum chemical dynamics and statistical mechanics is of increasing interest because of the rapid development of on-the-fly dynamic simulations for complex systems plus low-scaling electronic structural theory. Another challenging issue lies in the transition from order to disorder, from thermodynamics to dynamics, and from equilibrium to non-equilibrium. Despite an increasingly rapid emergence of advances in computational power, detailed criteria for databases, effective data sharing strategies, and deep learning workflows have yet to be developed. Here, we outline some challenges and limitations of the current artificial intelligence approaches with an outlook on the potential future directions for chemistry in the big data era.
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3
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Neha, Kant R. Static Structure Factor and Viscoelastic Properties of Dendrimer Grafted Nanoparticles in Solution. J Phys Chem B 2021; 125:1951-1959. [PMID: 33566606 DOI: 10.1021/acs.jpcb.0c10458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The theory for the dynamics of multiscale branched polymeric structures is applied to understand the dendrimer-grafted nanoparticles in a dilute solution. The multiscale nature of dendrimer-grafted nanoparticles arises due to larger beads for the nanoparticles and the smaller beads for the polymeric structure connected through the harmonic springs. The multiscale generalized Gaussian structure approach allows us to study several viscoelastic properties: (i) storage and loss moduli and (ii) intrinsic viscosity. The influence of nanoparticles in the dendrimer structure is reflected in low and intermediate frequency regimes of the viscoelastic relaxation moduli. The increase in the size and the number fraction of nanoparticle shows an anomalous enhancement in the relaxation moduli. The increase in number fraction of nanoparticle in dendrimer-grafted nanoparticles decreases the transition frequency between solid- and liquid-like viscoelastic region. The intrinsic viscosity of dendrimer-grafted nanoparticles increases with increasing the size of nanoparticle. The inclusion of hydrodynamic interactions facilitates the dynamics of dendrimer-grafted nanoparticles. The Kratky plot of the static structure factor of all conformation of dendrimer-grafted nanoparticles is also analyzed as a function of number fraction and the size of the nanoparticles. At low wavenumbers, all conformations of dendrimer-grafted nanoparticles show a universal behavior. The compactness of dendrimer-grafted nanoparticles increases with the increase in number fraction and the size of the nanoparticles.
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Affiliation(s)
- Neha
- Complex Systems Group, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rama Kant
- Complex Systems Group, Department of Chemistry, University of Delhi, Delhi 110007, India
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4
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Moins S, Henoumont C, De Roover Q, Laurent S, De Winter J, Coulembier O. Accelerating effect of crown ethers on the lactide polymerization catalysed by potassium acetate. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00756d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent advances in catalysis enriched the toolbox to prepare well-defined polyester materials such as polylactide (PLA).
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Affiliation(s)
- Sébastien Moins
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
| | - Céline Henoumont
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | - Quentin De Roover
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
| | - Sophie Laurent
- General, Organic and Biomedical Chemistry
- NMR and Molecular Imaging Laboratory
- University of Mons
- 7000 Mons
- Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOS)
- Materials Institute
- University of Mons
- 7000 Mons
- Belgium
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials
- Center of Innovation and Research in Materials and Polymers (CIRMAP)
- University of Mons
- 7000 Mons
- Belgium
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5
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De Roover Q, Vucko T, Vincent SP, De Winter J, Coulembier O. Photocontrolled lactide ROP by the light-regulated release of potassium acetate from an azobenzene-bridged crown ether. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01071a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An azobenzene-bridged crown ether was successfully used as a photoswitch for modulating the catalytic activity of potassium acetate (KOAc) in the ring-opening polymerization (ROP) of l-lactide (l-LA) when initiated from an exogenous alcohol.
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Affiliation(s)
- Quentin De Roover
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, 7000 Mons, Belgium
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), Materials Institute, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Timothé Vucko
- Unité de Chimie Organique, Université de Namur ASBL, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Stéphane P. Vincent
- Unité de Chimie Organique, Université de Namur ASBL, Rue de Bruxelles 61, 5000 Namur, Belgium
| | - Julien De Winter
- Organic Synthesis and Mass Spectrometry Laboratory (S2MOs), Materials Institute, University of Mons, Place du Parc 23, 7000 Mons, Belgium
| | - Olivier Coulembier
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, Place du Parc 23, 7000 Mons, Belgium
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6
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Zhao W, Lv Y, Li J, Feng Z, Ni Y, Hadjichristidis N. A Synthetic Method for Site‐Specific Functionalized Polypeptides: Metal‐Free, Highly Active, and Selective at Room Temperature. Angew Chem Int Ed Engl 2020; 60:889-895. [DOI: 10.1002/anie.202009316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/31/2020] [Indexed: 01/23/2023]
Affiliation(s)
- Wei Zhao
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yanfeng Lv
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Ji Li
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Zihao Feng
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yonghao Ni
- Department of Chemical Engineering University of New Brunswick, Fredericton New Brunswick E3B 5A3 Canada
| | - Nikos Hadjichristidis
- KAUST Catalysis Center Polymer Synthesis Laboratory Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Kingdom of Saudi Arabia
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7
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Zhao W, Lv Y, Li J, Feng Z, Ni Y, Hadjichristidis N. A Synthetic Method for Site‐Specific Functionalized Polypeptides: Metal‐Free, Highly Active, and Selective at Room Temperature. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wei Zhao
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yanfeng Lv
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Ji Li
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Zihao Feng
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yonghao Ni
- Department of Chemical Engineering University of New Brunswick, Fredericton New Brunswick E3B 5A3 Canada
| | - Nikos Hadjichristidis
- KAUST Catalysis Center Polymer Synthesis Laboratory Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Kingdom of Saudi Arabia
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8
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Dharmaratne NU, Pothupitiya JU, Kiesewetter MK. The mechanistic duality of (thio)urea organocatalysts for ring-opening polymerization. Org Biomol Chem 2019; 17:3305-3313. [PMID: 30834919 DOI: 10.1039/c8ob03174f] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Among the various catalysts for ROP, H-bonding organocatalysts stand out in the precise level of reaction control they are able to render during ROP. The H-bonding class of organocatalysts are thought to effect ROP via dual activation of both monomer and chain end. (Thio)urea mediated ROP has experienced a renaissance as a new polymerization mechanism - mediated by imidate or thioimidate species - facilitates new modes of reactivity and new synthetic abilities. Indeed, the urea class of H-bond donors has been shown to be more active than their corresponding thioureas. The imidate mechanism remains highly active in polar solvents and exhibits remarkable control - and 'living' behavior - under solvent-free conditions, and a broad range of temperatures is accessible. The advancements in synthetic abilities have all evolved through a greater understanding of reaction mechanism. Through the continued synergistic advances of catalysis and material, the (thio)urea class of catalyst can find use in a host of potential applications, research and industrial environments.
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9
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Schmid TE, Robert C, Richard V, Raman SK, Guérineau V, Thomas CM. Aluminum‐Catalyzed One‐Pot Synthesis of Polyester‐
b
‐Polypeptide Block Copolymers by Ring‐Opening Polymerization. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Thibault E. Schmid
- Chimie ParisTechPSL UniversityCNRSInstitut de Recherche de Chimie Paris 75005 Paris France
| | - Carine Robert
- Chimie ParisTechPSL UniversityCNRSInstitut de Recherche de Chimie Paris 75005 Paris France
| | - Vincent Richard
- Chimie ParisTechPSL UniversityCNRSInstitut de Recherche de Chimie Paris 75005 Paris France
| | - Sumesh K. Raman
- Chimie ParisTechPSL UniversityCNRSInstitut de Recherche de Chimie Paris 75005 Paris France
| | - Vincent Guérineau
- Institut de Chimie des Substances NaturellesCNRS UPR2301Université Paris‐SudUniversité Paris‐SaclayAvenue de la Terrasse 91198 Gif‐sur‐Yvette Cedex France
| | - Christophe M. Thomas
- Chimie ParisTechPSL UniversityCNRSInstitut de Recherche de Chimie Paris 75005 Paris France
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10
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Xu L, Zhang WB. The pursuit of precision in macromolecular science: Concepts, trends, and perspectives. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.09.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Abstract
Based on the results of research works reflected in the scientific literature, the main examples, methods and approaches to the development of polymer inorganic nanocomposite materials for target membranes are considered. The focus is on membranes for critical technologies with improved mechanical, thermal properties that have the necessary capabilities to solve the problems of a selective pervaporation. For the purpose of directional changes in the parameters of membranes, effects on their properties of the type, amount and conditions of nanoparticle incorporation into the polymer matrix were analyzed. An influence of nanoparticles on the structural and morphological characteristics of the nanocomposite film is considered, as well as possibilities of forming transport channels for separated liquids are analyzed. Particular attention is paid to a correlation of nanocomposite structure-transport properties of membranes, whose separation characteristics are usually considered within the framework of the diffusion-sorption mechanism.
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12
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Sulfenate anions as organocatalysts for benzylic chloromethyl coupling polymerization via C=C bond formation. Nat Commun 2018; 9:1754. [PMID: 29717123 PMCID: PMC5931538 DOI: 10.1038/s41467-018-04095-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 04/03/2018] [Indexed: 11/09/2022] Open
Abstract
Organocatalytic polymerization reactions have a number of advantages over their metal-catalyzed counterparts, including environmental friendliness, ease of catalyst synthesis and storage, and alternative reaction pathways. Here we introduce an organocatalytic polymerization method called benzylic chloromethyl-coupling polymerization (BCCP). BCCP is catalyzed by organocatalysts not previously employed in polymerization processes (sulfenate anions), which are generated from bench-stable sulfoxide precatalysts. The sulfenate anion promotes an umpolung polycondensation via step-growth propagation cycles involving sulfoxide intermediates. BCCP represents an example of an organocatalyst that links monomers by C=C double bond formation and offers transition metal-free access to a wide variety of polymers that cannot be synthesized by traditional precursor routes. Polymerization reactions are often catalysed by metal compounds and hence there are concerns surrounding toxicity, cost and environmental friendliness. Here the authors show sulfenate anions as organocatalysts for benzylic chloromethyl-coupling polymerization reactions to form poly(stilbene)s.
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13
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Lin B, Waymouth RM. Organic Ring-Opening Polymerization Catalysts: Reactivity Control by Balancing Acidity. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00540] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Binhong Lin
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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14
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15
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Kargarzadeh H, Mariano M, Huang J, Lin N, Ahmad I, Dufresne A, Thomas S. Recent developments on nanocellulose reinforced polymer nanocomposites: A review. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.09.043] [Citation(s) in RCA: 251] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Menzel JP, Noble BB, Lauer A, Coote ML, Blinco JP, Barner-Kowollik C. Wavelength Dependence of Light-Induced Cycloadditions. J Am Chem Soc 2017; 139:15812-15820. [DOI: 10.1021/jacs.7b08047] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jan P. Menzel
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
| | - Benjamin B. Noble
- Australian
Research Council Centre of Excellence for Electromaterials Science,
Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Andrea Lauer
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Michelle L. Coote
- Australian
Research Council Centre of Excellence for Electromaterials Science,
Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - James P. Blinco
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
| | - Christopher Barner-Kowollik
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD 4000, Australia
- Macromolecular
Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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17
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Lee J, Li H, Kalin AJ, Yuan T, Wang C, Olson T, Li H, Fang L. Extended Ladder‐Type Benzo[
k
]tetraphene‐Derived Oligomers. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707595] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jongbok Lee
- Department of Chemistry Texas A&M University 3255 TAMU College Station TX 77843-3255 USA
| | - Huanbin Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, State Key Laboratory of Silicon Materials, Department of Polymer Science and Engineering Zhejiang University 38 Zheda Rd Hangzhou 310027 China
| | - Alexander J. Kalin
- Department of Chemistry Texas A&M University 3255 TAMU College Station TX 77843-3255 USA
| | - Tianyu Yuan
- Department of Materials Science and Engineering Texas A&M University 3003 TAMU College Station TX 77843-3003 USA
| | - Chenxu Wang
- Department of Materials Science and Engineering Texas A&M University 3003 TAMU College Station TX 77843-3003 USA
| | - Troy Olson
- Department of Chemistry Texas A&M University 3255 TAMU College Station TX 77843-3255 USA
| | - Hanying Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, State Key Laboratory of Silicon Materials, Department of Polymer Science and Engineering Zhejiang University 38 Zheda Rd Hangzhou 310027 China
| | - Lei Fang
- Department of Chemistry Texas A&M University 3255 TAMU College Station TX 77843-3255 USA
- Department of Materials Science and Engineering Texas A&M University 3003 TAMU College Station TX 77843-3003 USA
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18
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Lee J, Li H, Kalin AJ, Yuan T, Wang C, Olson T, Li H, Fang L. Extended Ladder-Type Benzo[k]tetraphene-Derived Oligomers. Angew Chem Int Ed Engl 2017; 56:13727-13731. [PMID: 28887849 DOI: 10.1002/anie.201707595] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/07/2017] [Indexed: 11/09/2022]
Abstract
Well-defined, fused-ring aromatic oligomers represent promising candidates for the fundamental understanding and application of advanced carbon-rich materials, though bottom-up synthesis and structure-property correlation of these compounds remain challenging. In this work, an efficient synthetic route was employed to construct extended benzo[k]tetraphene-derived oligomers with up to 13 fused rings. The molecular and electronic structures of these compounds were clearly elucidated. Precise correlation of molecular sizes and crystallization dynamics was established, thus demonstrating the pivotal balance between intermolecular interaction and molecular mobility for optimized processing of highly ordered solids of these extended conjugated molecules.
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Affiliation(s)
- Jongbok Lee
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843-3255, USA
| | - Huanbin Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, State Key Laboratory of Silicon Materials, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Rd, Hangzhou, 310027, China
| | - Alexander J Kalin
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843-3255, USA
| | - Tianyu Yuan
- Department of Materials Science and Engineering, Texas A&M University, 3003 TAMU, College Station, TX, 77843-3003, USA
| | - Chenxu Wang
- Department of Materials Science and Engineering, Texas A&M University, 3003 TAMU, College Station, TX, 77843-3003, USA
| | - Troy Olson
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843-3255, USA
| | - Hanying Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, State Key Laboratory of Silicon Materials, Department of Polymer Science and Engineering, Zhejiang University, 38 Zheda Rd, Hangzhou, 310027, China
| | - Lei Fang
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX, 77843-3255, USA.,Department of Materials Science and Engineering, Texas A&M University, 3003 TAMU, College Station, TX, 77843-3003, USA
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19
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Rajashekhar B, Mandal M, Chakraborty D, Ramkumar V. Homoleptic Zr and Hf Complexes of Imino/Bis(imino)phenoxide Scaffolds: Synthesis, Structural Characterization and Their Catalytic Activity in the ROP of Cyclic Esters. ChemistrySelect 2017. [DOI: 10.1002/slct.201701602] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Bijja Rajashekhar
- Department of Chemistry; Indian Institute of Technology Madras; Chennai- 600 036, Tamil Nadu India
| | - Mrinmay Mandal
- Department of Chemistry; Indian Institute of Technology Patna; Bihta 801103, Bihar India
| | - Debashis Chakraborty
- Department of Chemistry; Indian Institute of Technology Madras; Chennai- 600 036, Tamil Nadu India
| | - Venkatachalam Ramkumar
- Department of Chemistry; Indian Institute of Technology Madras; Chennai- 600 036, Tamil Nadu India
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20
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Affiliation(s)
- Preetom Sarkar
- Rubber Technology Centre, Indian Institute of Technology KharagpurKharagpur 721302 West Bengal India
| | - Anil K. Bhowmick
- Rubber Technology Centre, Indian Institute of Technology KharagpurKharagpur 721302 West Bengal India
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21
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Wang H, Zhou F, Ren G, Zheng Q, Chen H, Gao B, Klivansky L, Liu Y, Wu B, Xu Q, Lu J, Sharpless KB, Wu P. SuFEx-Based Polysulfonate Formation from Ethenesulfonyl Fluoride-Amine Adducts. Angew Chem Int Ed Engl 2017; 56:11203-11208. [PMID: 28792119 DOI: 10.1002/anie.201701160] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/31/2017] [Indexed: 11/10/2022]
Abstract
The SuFEx-based polycondensation between bisalkylsulfonyl fluorides (AA monomers) and bisphenol bis(t-butyldimethylsilyl) ethers (BB monomers) using [Ph3 P=N-PPh3 ]+ [HF2 ]- as the catalyst is described. The AA monomers were prepared via the highly reliable Michael addition of ethenesulfonyl fluoride and amines/anilines while the BB monomers were obtained from silylation of bisphenols by t-butyldimethylsilyl chloride. With these reactions, a remarkable diversity of monomeric building blocks was achieved by exploiting readily available amines, anilines, and bisphenols as starting materials. The SuFEx-based polysulfonate formation reaction exhibited excellent efficiency and functional group tolerance, producing polysulfonates with a variety of side chain functionalities in >99 % conversion within 10 min to 1 h. When bearing an orthogonal group on the side chain, the polysulfonates can be further functionalized via click-chemistry-based post-polymerization modification.
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Affiliation(s)
- Hua Wang
- Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Feng Zhou
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.,College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou, Nano Science and Technology, Soochow University, Suzhou, 215123, P.R. China
| | - Gerui Ren
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA.,Department of Applied Chemistry, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, 310018, P.R. China
| | - Qinheng Zheng
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Hongli Chen
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Bing Gao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Liana Klivansky
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Yi Liu
- The Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Bin Wu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou, Nano Science and Technology, Soochow University, Suzhou, 215123, P.R. China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou, Nano Science and Technology, Soochow University, Suzhou, 215123, P.R. China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou, Nano Science and Technology, Soochow University, Suzhou, 215123, P.R. China
| | - K Barry Sharpless
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Peng Wu
- Department of Chemical Physiology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA, 92037, USA
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22
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Wang H, Zhou F, Ren G, Zheng Q, Chen H, Gao B, Klivansky L, Liu Y, Wu B, Xu Q, Lu J, Sharpless KB, Wu P. SuFEx‐Based Polysulfonate Formation from Ethenesulfonyl Fluoride–Amine Adducts. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701160] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hua Wang
- Department of Chemical Physiology The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Feng Zhou
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou 215123 P.R. China
| | - Gerui Ren
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
- Department of Applied Chemistry School of Food Science and Biotechnology Zhejiang Gongshang University Hangzhou 310018 P.R. China
| | - Qinheng Zheng
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Hongli Chen
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Bing Gao
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Liana Klivansky
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Yi Liu
- The Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Bin Wu
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou 215123 P.R. China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou 215123 P.R. China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University Suzhou 215123 P.R. China
| | - K. Barry Sharpless
- Department of Chemistry The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
| | - Peng Wu
- Department of Chemical Physiology The Scripps Research Institute 10550 North Torrey Pines Road La Jolla CA 92037 USA
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23
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Spiess HW. 50th Anniversary Perspective: The Importance of NMR Spectroscopy to Macromolecular Science. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02736] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Lastovickova DN, Shao H, Lu G, Liu P, Bielawski CW. A Ring-Opening Metathesis Polymerization Catalyst That Exhibits Redox-Switchable Monomer Selectivities. Chemistry 2017; 23:5994-6000. [PMID: 27977049 DOI: 10.1002/chem.201605738] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Indexed: 12/20/2022]
Abstract
A ring-opening metathesis polymerization catalyst supported by a redox-active N-heterocyclic carbene was synthesized and found to undergo reversible reduction. In its neutral form, the catalyst polymerized 1,5-cis,cis-cyclooctadiene at a higher rate than that of a norbornene derivative; however, upon reduction, the selectivity was found to reverse. Utilizing this oxidation state dependent selectivity, a series of copolymers with controlled compositions, microstructures, and physical properties were prepared by redox-switching the catalyst over the course of a series of polymerization reactions.
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Affiliation(s)
- Dominika N Lastovickova
- Department of Chemistry, The University of Texas at Austin, 1 University Station, A1590, Austin, TX, 78712, USA
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Huiling Shao
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Gang Lu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, PA, 15260, USA
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, 15261, USA
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
- Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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26
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Lin B, Waymouth RM. Urea Anions: Simple, Fast, and Selective Catalysts for Ring-Opening Polymerizations. J Am Chem Soc 2017; 139:1645-1652. [DOI: 10.1021/jacs.6b11864] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Binhong Lin
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Robert M. Waymouth
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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27
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Fast and selective ring-opening polymerizations by alkoxides and thioureas. Nat Chem 2016; 8:1047-1053. [DOI: 10.1038/nchem.2574] [Citation(s) in RCA: 182] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 06/13/2016] [Indexed: 02/08/2023]
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28
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29
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Aiba M, Higashihara T, Ashizawa M, Otsuka H, Matsumoto H. Triggered Structural Control of Dynamic Covalent Aromatic Polyamides: Effects of Thermal Reorganization Behavior in Solution and Solid States. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b01778] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Motohiro Aiba
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Tomoya Higashihara
- Department
of Polymer Science and Engineering, Faculty of Engineering, Yamagata University,
4-3-16 Jonan, Yonezawa City, Yamagata 992-8510, Japan
| | - Minoru Ashizawa
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Hideyuki Otsuka
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
| | - Hidetoshi Matsumoto
- Department
of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1 Ookayama,
Meguro-ku, Tokyo 152-8552, Japan
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30
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Supramolecular Crystals and Crystallization with Nanosized Motifs of Giant Molecules. POLYMER CRYSTALLIZATION I 2016. [DOI: 10.1007/12_2015_343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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31
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Hong L, He J, Chen Y, Kakuchi T. Synthesis of ABB′ and ABC star copolymers via a combination of NMRP and ROP reactions. Polym Chem 2016. [DOI: 10.1039/c6py00401f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Well-defined miktoarm star copolymers (ABB′ and ABC) were synthesized via a combination of NMRP and ROP using N-(2-hydroxyethyl)maleimide as the branching molecule.
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Affiliation(s)
- Linxiang Hong
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai
- China
| | - Junpo He
- State Key Laboratory of Molecular Engineering of Polymers
- Department of Macromolecular Science
- Fudan University
- Shanghai
- China
| | - Yougen Chen
- Division of Biotechnology and Macromolecular Chemistry
- Graduate School of Chemical Sciences and Engineering
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
| | - Toyoji Kakuchi
- Division of Biotechnology and Macromolecular Chemistry
- Graduate School of Chemical Sciences and Engineering
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
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32
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Hansen MR, Graf R, Spiess HW. Interplay of Structure and Dynamics in Functional Macromolecular and Supramolecular Systems As Revealed by Magnetic Resonance Spectroscopy. Chem Rev 2015; 116:1272-308. [DOI: 10.1021/acs.chemrev.5b00258] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Michael Ryan Hansen
- Max Planck Institute for Polymer Research, P.O. Box 3148, 55021 Mainz, Germany
| | - Robert Graf
- Max Planck Institute for Polymer Research, P.O. Box 3148, 55021 Mainz, Germany
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33
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Preparation of multicompartment micelles from amphiphilic linear triblock terpolymers by pH-responsive self-assembly. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3711-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Gubanova GN, Kononova SV, Cristea M, Timpu D, Romashkova KA, Korytkova EN, Maslennikova TP, Saprikina NN. Morphology and mechanical properties of polymer-inorganic nanocomposite containing triple chain fibrous Na-Mg hydrosilicate. RUSS J GEN CHEM+ 2015. [DOI: 10.1134/s1070363215060249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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35
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Importance of superior dispersion versus filler surface modification in producing robust polymer nanocomposites: The example of polypropylene/nanosilica hybrids. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.05.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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36
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Iyer KA, Schueneman GT, Torkelson JM. Cellulose nanocrystal/polyolefin biocomposites prepared by solid-state shear pulverization: Superior dispersion leading to synergistic property enhancements. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.11.017] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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Gadwal I, Stuparu MC, Khan A. Homopolymer bifunctionalization through sequential thiol–epoxy and esterification reactions: an optimization, quantification, and structural elucidation study. Polym Chem 2015. [DOI: 10.1039/c4py01453g] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this study, we probe various aspects of a post-polymerization double-modification strategy involving sequential thiol–epoxy and esterification reactions for the preparation of dual-functional homopolymers.
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Affiliation(s)
- Ikhlas Gadwal
- Department of Materials
- ETH-Zürich
- CH-8093 Zürich
- Switzerland
| | - Mihaiela C. Stuparu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- and School of Materials Science and Engineering
- Nanyang Technological University
- Singapore
| | - Anzar Khan
- Department of Materials
- ETH-Zürich
- CH-8093 Zürich
- Switzerland
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38
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Lin LK, Hu CC, Su WC, Liu YL. Thermosetting resins with high fractions of free volume and inherently low dielectric constants. Chem Commun (Camb) 2015; 51:12760-3. [DOI: 10.1039/c5cc03899e] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of thermosetting resins are developed through the ketene chemistry with in situ formation of cavities in the resins so as to reduce the dielectric constants of the resins to about 2.0.
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Affiliation(s)
- Liang-Kai Lin
- Department of Chemical Engineering
- National Tsing Hua University #101
- Hsinchu 30013
- Taiwan
| | - Chien-Chieh Hu
- Department of Chemical Engineering and R&D Center for Membrane Technology
- Chung Yuan Christian University
- Taoyuan 32023
- Taiwan
| | - Wen-Chiung Su
- Chemistry Division
- National Chung-San Institute of Science and Technology
- Taoyuan 32517
- Taiwan
| | - Ying-Ling Liu
- Department of Chemical Engineering
- National Tsing Hua University #101
- Hsinchu 30013
- Taiwan
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39
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Sheng YZ, Yang H, Li JY, Zhao XJ, Sun M. Molecular dynamics simulation of isothermal crystallisation of polymer chains around single polymer lamella. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2013.840900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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40
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Serrano-Ruiz D, Alonso-Cristobal P, Mendez-Gonzalez D, Laurenti M, Olivero-David R, López-Cabarcos E, Rubio-Retama J. Nanosegregated polymeric domains on the surface of Fe3O4@SiO2particles. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27338] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- David Serrano-Ruiz
- Department of Physical-Chemistry II; Faculty of Pharmacy, Complutense University of Madrid; 28040 Spain
| | - Paulino Alonso-Cristobal
- Department of Physical-Chemistry II; Faculty of Pharmacy, Complutense University of Madrid; 28040 Spain
| | - Diego Mendez-Gonzalez
- Department of Physical-Chemistry II; Faculty of Pharmacy, Complutense University of Madrid; 28040 Spain
| | - Marco Laurenti
- Faculty of Dentistry, McGill University; Montreal Canada
| | - Raúl Olivero-David
- Department of Physical-Chemistry II; Faculty of Pharmacy, Complutense University of Madrid; 28040 Spain
| | - Enrique López-Cabarcos
- Department of Physical-Chemistry II; Faculty of Pharmacy, Complutense University of Madrid; 28040 Spain
| | - Jorge Rubio-Retama
- Department of Physical-Chemistry II; Faculty of Pharmacy, Complutense University of Madrid; 28040 Spain
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41
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Synthesis of poly(lactic acid)–poly(ethylene glycol) copolymers using multi-SO3H-functionalized ionic liquid as the efficient and reusable catalyst. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1117-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Zhang WB, Yu X, Wang CL, Sun HJ, Hsieh IF, Li Y, Dong XH, Yue K, Van Horn R, Cheng SZD. Molecular Nanoparticles Are Unique Elements for Macromolecular Science: From “Nanoatoms” to Giant Molecules. Macromolecules 2014. [DOI: 10.1021/ma401724p] [Citation(s) in RCA: 280] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wen-Bin Zhang
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Xinfei Yu
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Chien-Lung Wang
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Hao-Jan Sun
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - I-Fan Hsieh
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Yiwen Li
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Xue-Hui Dong
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Kan Yue
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Ryan Van Horn
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Stephen Z. D. Cheng
- Department of Polymer Science, College
of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United States
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43
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Krall EM, Klein TW, Andersen RJ, Nett AJ, Glasgow RW, Reader DS, Dauphinais BC, Mc Ilrath SP, Fischer AA, Carney MJ, Hudson DJ, Robertson NJ. Controlled hydrogenative depolymerization of polyesters and polycarbonates catalyzed by ruthenium(ii) PNN pincer complexes. Chem Commun (Camb) 2014; 50:4884-7. [DOI: 10.1039/c4cc00541d] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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45
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Zerze H, Mittal J, McHugh AJ. Ab Initio Crystallization of Alkanes: Structure and Kinetics of Nuclei Formation. Macromolecules 2013. [DOI: 10.1021/ma401836b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hasan Zerze
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18034, United States
| | - Jeetain Mittal
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18034, United States
| | - Anthony J. McHugh
- Department of Chemical Engineering, Lehigh University, Bethlehem, Pennsylvania 18034, United States
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46
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Chen W, Sun HJ, Miyoshi T. Unique molecular dynamics of structural elements in an asymmetric Janus bisamide supramolecule characterized by solid-state NMR. J Phys Chem B 2013; 117:13698-709. [PMID: 24102116 DOI: 10.1021/jp4081492] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An asymmetric tapered Janus bisamide supramolecule consisting of 1,4-bis[3,4,5-tris(alkan-1-yloxy)benzamido]benzene bisamide (abbreviated as C22PhBAEO3) can possess three-dimensional (3D) long-range order under mild thermal treatment conditions. To understand its structural formation and unique phase-transition processes, the locally detailed structure and molecular dynamics of its structural elements in disordered and ordered phases of C22PhBAEO3 were investigated using various solid-state (SS) NMR techniques at the atomic level. On the basis of the determined conformations and packing structures of the alkyl chains in ordered and disordered crystalline phases, along with the geometry and kinetic parameters of the structural elements' dynamics, this study addresses the self-assembly, the phase-transition mechanisms, and the relationship between the structure and dynamics of these asymmetric Janus bisamide supramolecules.
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Affiliation(s)
- Wei Chen
- Department of Polymer Science, The University of Akron , Akron, Ohio 44325-3909, United States
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47
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Zhang WB, Sun F, Tirrell DA, Arnold FH. Controlling Macromolecular Topology with Genetically Encoded SpyTag–SpyCatcher Chemistry. J Am Chem Soc 2013; 135:13988-97. [DOI: 10.1021/ja4076452] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Wen-Bin Zhang
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Fei Sun
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - David A. Tirrell
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Frances H. Arnold
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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48
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Leibfarth FA, Hawker CJ. The emerging utility of ketenes in polymer chemistry. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26797] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Frank A. Leibfarth
- Department of Materials; Chemistry and Biochemistry and Materials Research Laboratory, University of California; Santa Barbara California 93106
| | - Craig J. Hawker
- Department of Materials; Chemistry and Biochemistry and Materials Research Laboratory, University of California; Santa Barbara California 93106
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49
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de Gracia Lux C, Olejniczak J, Fomina N, Viger ML, Almutairi A. Intramolecular cyclization assistance for fast degradation of ornithine-based poly(ester amide)s. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26788] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Caroline de Gracia Lux
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego; La Jolla California 92093
| | - Jason Olejniczak
- Department of Chemistry and Biochemistry, University of California at San Diego; La Jolla California 92093
| | - Nadezda Fomina
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego; La Jolla California 92093
| | - Mathieu L. Viger
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego; La Jolla California 92093
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California at San Diego; La Jolla California 92093
- Department of NanoEngineering, University of California at San Diego; La Jolla California 92093
- Department of Materials Science and Engineering, University of California at San Diego; La Jolla California 92093
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50
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de Gracia Lux C, Almutairi A. Intramolecular Cyclization for Stimuli-Controlled Depolymerization of Polycaprolactone Particles Leading to Disassembly and Payload Release. ACS Macro Lett 2013; 2:432-435. [PMID: 23814697 DOI: 10.1021/mz400129h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Developing polymer chemistries capable of on-demand, controlled depolymerization is an important tool in a broad variety of applications in science, technology, and industry. We report functionalized poly(caprolactone)s (PCL)s designed to allow on-demand and complete depolymerization through incorporation of pendant protected amino groups that, on deprotection, trigger nucleophilic attack and yield a single cyclic product. Two cleavable protecting groups were used to cap PCL: light sensititve o-nitrobenzyl alcohol (ONB) and tert-butyl carbamate (Boc) (for proof of concept). NMR confirmed that PCL-Boc degrades completely into the designed intramolecular cyclization products within a day upon deprotection. TEM visualization of particles made from PCL-ONB encapsulating iron oxide nanoparticles reveals complete disruption of nanoparticles and release of payload. This work demonstrates that intramolecular cyclization within the polymer backbone is an excellent route to accelerate polymer degradation by backbiting reactions into small fragments that should be easily cleared from the circulation.
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Affiliation(s)
- Caroline de Gracia Lux
- Skaggs School of Pharmacy and Pharmaceutical Sciences, ‡Departments of NanoEngineering
and of Materials Science and Engineering, University of California at San Diego, La Jolla, California
92093, United States
| | - Adah Almutairi
- Skaggs School of Pharmacy and Pharmaceutical Sciences, ‡Departments of NanoEngineering
and of Materials Science and Engineering, University of California at San Diego, La Jolla, California
92093, United States
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