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Bikiaris N, Klonos PA, Christodoulou E, Barmpalexis P, Kyritsis A. Plasticization Effects of PEG of Low Molar Fraction and Molar Mass on the Molecular Dynamics and Crystallization of PLA- b-PEG- b-PLA Triblock Copolymers Envisaged for Medical Applications. J Phys Chem B 2025; 129:3514-3528. [PMID: 40108139 PMCID: PMC11973873 DOI: 10.1021/acs.jpcb.5c00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2025] [Revised: 03/13/2025] [Accepted: 03/14/2025] [Indexed: 03/22/2025]
Abstract
We prepared and studied a series of triblock copolymers based on poly(ethylene glycol) (PEG) and poly(lactic acid) (PLA). PLA blocks were in situ by ring-opening polymerization (ROP) of lactide (LA) onto the two sites of PEG. While in our recent work on similar copolymers with varying LA/PEG molar ratios and fixed PEG blocks [Bikiaris, N. D. Mater. Today Commun. 2024, 38, 107799], herein, we kept this ratio quite low, at 640/1, and employed different molecular weights, Mn, of the initial PEG at 1, 4, 6, and 8 kg/mol. The triblocks demonstrated high homogeneity, as manifested by the single thermal transition (glass transition, crystallization) with corresponding alternations in a systematic way with the Mn of PEG. With the increase of the latter Mn, accelerated segmental mobility and lowering of Tg by up to 15 K were recorded, accompanied by suppression in the chain fragility (cooperativity). Compared with linear PLAs of various Mns [Klonos, P. A. Polymer 2024, 305, 127177] and other PLA-based copolymers prepared by similar ROPs, with the overall Mn of our copolymers, PEG here sees to play the role of plasticizer on PLA, leading to increased free volume. Due to these effects, in general, the low crystalline fraction of PLA (∼3%) was significantly enhanced in the copolymers (20-26%), and the formed spherulites were mainly enlarged. Contrary to these, nucleation was barely affected; thus, the copolymers exhibited altered semicrystalline morphologies as compared to that in neat PLA. Both aspects of molecular dynamics, free volume and crystallization, were connected to the processability as well as the performance of these systems, considering the envisaged biomedical applications.
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Affiliation(s)
- Nikolaos
D. Bikiaris
- Department
of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Panagiotis A. Klonos
- Dielectrics
Group, Department of Physics, National Technical
University of Athens, Zografou Campus, GR-15780 Athens, Greece
- Department
of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Evi Christodoulou
- Department
of Chemistry, Laboratory of Polymer Chemistry and Technology, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Panagiotis Barmpalexis
- Department
of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, GR-541 24 Thessaloniki, Greece
| | - Apostolos Kyritsis
- Dielectrics
Group, Department of Physics, National Technical
University of Athens, Zografou Campus, GR-15780 Athens, Greece
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2
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Zhang P, Ladelta V, Abou-Hamad E, Müller AJ, Hadjichristidis N. Catalyst switch strategy enabled a single polymer with five different crystalline phases. Nat Commun 2023; 14:7559. [PMID: 37985766 PMCID: PMC10662249 DOI: 10.1038/s41467-023-42955-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023] Open
Abstract
Well-defined multicrystalline multiblock polymers are essential model polymers for advancing crystallization physics, phase separation, self-assembly, and improving the mechanical properties of materials. However, due to different chain properties and incompatible synthetic methodologies, multicrystalline multiblock polymers with more than two crystallites are rarely reported. Herein, by combining polyhomologation, ring-opening polymerization, and catalyst switch strategy, we synthesized a pentacrystalline pentablock quintopolymer, polyethylene-b-poly(ethylene oxide)-b-poly(ε-caprolactone)-b-poly(L-lactide)-b-polyglycolide (PE-b-PEO-b-PCL-b-PLLA-b-PGA). The fluoroalcohol-assisted catalyst switch enables the successful incorporation of a high melting point polyglycolide block into the complex multiblock structure. Solid-state nuclear magnetic resonance spectroscopy, X-ray diffraction, and differential scanning calorimetry revealed the existence of five different crystalline phases.
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Affiliation(s)
- Pengfei Zhang
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Chemistry Program, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Viko Ladelta
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Chemistry Program, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Edy Abou-Hamad
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Alejandro J Müller
- 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, 20018, Donostia-San Sebastián, Spain
| | - Nikos Hadjichristidis
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Chemistry Program, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia.
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3
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Competition between polycrystalline morphology and microphase separation in blends based on cellulose triacetate. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Relationship between Localization of PBSU in Interlamellar/Interfibrillar Regimes and Double Peaks in DSC/SAXS in its Blend with PVDF. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2718-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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5
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Di Girolamo R, Cicolella A, Talarico G, Scoti M, De Stefano F, Giordano A, Malafronte A, De Rosa C. Structure and Morphology of Crystalline Syndiotactic Polypropylene-Polyethylene Block Copolymers. Polymers (Basel) 2022; 14:polym14081534. [PMID: 35458284 PMCID: PMC9031856 DOI: 10.3390/polym14081534] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 02/05/2023] Open
Abstract
A study of the structure and morphology of diblock copolymers composed of crystallizable blocks of polyethylene (PE) and syndiotactic polypropylene (sPP) having different lengths is reported. In both analyzed samples, the PE block crystallizes first by cooling from the melt (at 130 °C) and the sPP block crystallizes after at a lower temperature. Small angle X-ray scattering (SAXS) recorded during cooling showed three correlation peaks at values of the scattering vector, q1 = 0.12 nm−1, q2 = 0.24 nm−1 and q3 = 0.4 nm−1, indicating development of a lamellar morphology, where lamellar domains of PE and sPP alternate, each domain containing stacks of crystalline lamellae of PE or sPP sandwiched by their own amorphous phase of PE or sPP. At temperatures higher than 120 °C, when only PE crystals are formed, the morphology is defined by the formation of stacks of PE lamellae (17 nm thick) alternating with amorphous layers and with a long period of nearly 52 nm. At lower temperatures, when crystals of sPP are also well-formed, the morphology is more complex. A model of the morphology at room temperature is proposed based on the correlation distances determined from the self-correlation functions extracted from the SAXS data. Lamellar domains of PE (41.5 nm thick) and sPP (8.2 nm thick) alternate, each domain containing stacks of crystalline lamellae sandwiched by their own amorphous phase, forming a global morphology having a total lamellar periodicity of 49.7 nm, characterized by alternating amorphous and crystalline layers, where the crystalline layers are alternatively made of stacks of PE lamellae (22 nm thick) and thinner sPP lamellae (only 3.5 nm thick).
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6
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Yang C, Li Z, Xu J. Single crystals and two‐dimensional crystalline assemblies of block copolymers. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20210866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chen Yang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Zi‐Xian Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
| | - Jun‐Ting Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering Zhejiang University Hangzhou China
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Park J, Easterling CP, Armstrong CC, Huber DL, Bowman JI, Sumerlin BS, Winey KI, Taylor MK. Nanoscale layers of precise ion-containing polyamides with lithiated phenyl sulfonate in the polymer backbone. Polym Chem 2022. [DOI: 10.1039/d2py00802e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Precise polyamide ionomer produces well-defined nanoscale layers.
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Affiliation(s)
- Jinseok Park
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Charles P. Easterling
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - Christopher C. Armstrong
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - Dale L. Huber
- Center for Integrated Nanotechnologies, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
| | - Jared I. Bowman
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611, USA
| | - Karen I. Winey
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Mercedes K. Taylor
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
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Matxinandiarena E, Múgica A, Zubitur M, Ladelta V, Zapsas G, Cavallo D, Hadjichristidis N, Müller AJ. Crystallization and Morphology of Triple Crystalline Polyethylene- b-poly(ethylene oxide)- b-poly(ε-caprolactone) PE- b-PEO- b-PCL Triblock Terpolymers. Polymers (Basel) 2021; 13:polym13183133. [PMID: 34578032 PMCID: PMC8473441 DOI: 10.3390/polym13183133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 11/17/2022] Open
Abstract
The morphology and crystallization behavior of two triblock terpolymers of polymethylene, equivalent to polyethylene (PE), poly (ethylene oxide) (PEO), and poly (ε-caprolactone) (PCL) are studied: PE227.1-b-PEO4615.1-b-PCL3210.4 (T1) and PE379.5-b-PEO348.8-b-PCL297.6 (T2) (superscripts give number average molecular weights in kg/mol and subscripts composition in wt %). The three blocks are potentially crystallizable, and the triple crystalline nature of the samples is investigated. Polyhomologation (C1 polymerization), ring-opening polymerization, and catalyst-switch strategies were combined to synthesize the triblock terpolymers. In addition, the corresponding PE-b-PEO diblock copolymers and PE homopolymers were also analyzed. The crystallization sequence of the blocks was determined via three independent but complementary techniques: differential scanning calorimetry (DSC), in situ SAXS/WAXS (small angle X-ray scattering/wide angle X-ray scattering), and polarized light optical microscopy (PLOM). The two terpolymers (T1 and T2) are weakly phase segregated in the melt according to SAXS. DSC and WAXS results demonstrate that in both triblock terpolymers the crystallization process starts with the PE block, continues with the PCL block, and ends with the PEO block. Hence triple crystalline materials are obtained. The crystallization of the PCL and the PEO block is coincident (i.e., it overlaps); however, WAXS and PLOM experiments can identify both transitions. In addition, PLOM shows a spherulitic morphology for the PE homopolymer and the T1 precursor diblock copolymer, while the other systems appear as non-spherulitic or microspherulitic at the last stage of the crystallization process. The complicated crystallization of tricrystalline triblock terpolymers can only be fully grasped when DSC, WAXS, and PLOM experiments are combined. This knowledge is fundamental to tailor the properties of these complex but fascinating materials.
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Affiliation(s)
- Eider Matxinandiarena
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 Donostia-San Sebastián, Spain; (E.M.); (A.M.)
| | - Agurtzane Múgica
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 Donostia-San Sebastián, Spain; (E.M.); (A.M.)
| | - Manuela Zubitur
- Department of Chemical and Environmental Engineering, University of the Basque Country UPV/EHU, Plaza Europa 1, 20018 Donostia-San Sebastián, Spain;
| | - Viko Ladelta
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia; (V.L.); (G.Z.)
| | - George Zapsas
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia; (V.L.); (G.Z.)
| | - Dario Cavallo
- Department of Chemistry and Industrial Chemistry, University of Genova, via Dodecaneso 31, 16146 Genova, Italy;
| | - Nikos Hadjichristidis
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia; (V.L.); (G.Z.)
- Correspondence: (N.H.); (A.J.M.)
| | - Alejandro J. Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 Donostia-San Sebastián, Spain; (E.M.); (A.M.)
- Ikerbasque, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
- Correspondence: (N.H.); (A.J.M.)
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9
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Sangroniz L, Wang B, Su Y, Liu G, Cavallo D, Wang D, Müller AJ. Fractionated crystallization in semicrystalline polymers. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101376] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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10
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Palacios JK, Zhang H, Zhang B, Hadjichristidis N, Müller AJ. Direct identification of three crystalline phases in PEO-b-PCL-b-PLLA triblock terpolymer by In situ hot-stage atomic force microscopy. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122863] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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11
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Zhang X, Dai Y, Dai G, Deng C. Advances in PEG-based ABC terpolymers and their applications. RSC Adv 2020; 10:21602-21614. [PMID: 35518773 PMCID: PMC9054495 DOI: 10.1039/d0ra03478a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 05/18/2020] [Indexed: 12/16/2022] Open
Abstract
ABC terpolymers are a class of very important polymers because of their expansive molecular topologies and extensive architectures. As block A, poly(ethylene glycol) (PEG) is one of the most principal categories owing to good biocompatibility and wide commercial availability. More importantly, the synthetic approaches of ABC terpolymers using PEG as a macroinitiator are facile and varied. PEG-based ABC terpolymers from design and synthesis to applications are highlighted in this review. Linear, 3-miktoarm, and cyclic polymers as the architecture are separated. The synthetic approaches of PEG-based ABC terpolymers mainly include the sequential polymerization or coupling of polymers. PEG-based ABC terpolymers have wide applications in the fields of drug carriers, gene vectors, templates for the fabrication of inorganic hollow nanospheres, and stabilizers of metal nanoparticles.
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Affiliation(s)
- Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 China
| | - Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 China
| | - Guofei Dai
- Jiangxi Provincial Key Laboratory of Water Resources and Environment of Poyang Lake, Jiangxi Institute of Water Sciences Nanchang 330029 China
| | - Chunhui Deng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis, Advanced Materials Laboratory, Fudan University Shanghai 200433 China
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12
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Li L, Li T, Arras MM, Bonnesen PV, Peng X, Li W, Hong K. Chain arrangements of selectively deuterated poly(ε-caprolactone) copolymers as revealed by neutron scattering. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Fractionated crystallization and fractionated melting behaviors of poly(ethylene glycol) induced by poly(lactide) stereocomplex in their block copolymers and blends. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122189] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Liu J, Jiang P, Wang Y, Tu G. Synthesis of two A-B-C type conjugated amphiphilic triblock fullerene derivatives and their application in organic solar cells. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.05.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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Ladelta V, Zapsas G, Abou‐hamad E, Gnanou Y, Hadjichristidis N. Tetracrystalline Tetrablock Quarterpolymers: Four Different Crystallites under the Same Roof. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Viko Ladelta
- Polymer Synthesis LaboratoryKAUST Catalysis CenterPhysical Sciences and Engineering DivisionKing Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - George Zapsas
- Polymer Synthesis LaboratoryKAUST Catalysis CenterPhysical Sciences and Engineering DivisionKing Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - Edy Abou‐hamad
- Imaging and Characterization Core LabKing Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering DivisionKing Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
| | - Nikos Hadjichristidis
- Polymer Synthesis LaboratoryKAUST Catalysis CenterPhysical Sciences and Engineering DivisionKing Abdullah University of Science and Technology (KAUST) Thuwal 23955 Saudi Arabia
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16
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Ladelta V, Zapsas G, Abou-Hamad E, Gnanou Y, Hadjichristidis N. Tetracrystalline Tetrablock Quarterpolymers: Four Different Crystallites under the Same Roof. Angew Chem Int Ed Engl 2019; 58:16267-16274. [PMID: 31448860 DOI: 10.1002/anie.201908688] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Indexed: 11/10/2022]
Abstract
Multicrystalline block polymers having three or more crystalline segments are essential materials for the advancement of physics in the field of crystallinity. The challenging synthesis of multicrystalline polymers has resulted in only a limited number of tricrystalline terpolymers having been reported to date. We report, for the first time, the synthesis of polyethylene-b-poly(ethylene oxide)-b-poly(ϵ-caprolactone)-b-poly(l-lactide) (PE-b-PEO-b-PCL-b-PLLA), a tetracrystalline tetrablock quarterpolymer, by combining polyhomologation, ring-opening polymerization, and an organic/metal "catalyst switch" strategy. 1 H NMR spectroscopy and gel-permeation chromatography confirmed the formation of the tetrablock quarterpolymer, while differential scanning calorimetry, X-ray diffraction, and wide-line separation solid-state NMR spectroscopy revealed the existence of four different crystalline domains.
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Affiliation(s)
- Viko Ladelta
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - George Zapsas
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Edy Abou-Hamad
- Imaging and Characterization Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Polymer Synthesis Laboratory, KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Saudi Arabia
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17
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Han W, Li S, Liao X, He B, Yang Q, Li G. Confined crystallization morphology of poly( ϵ‐caprolactone) block within poly( ϵ‐caprolactone)–poly( l‐lactide) copolymers. POLYM INT 2019. [DOI: 10.1002/pi.5911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Weiqiang Han
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu Sichuan China
| | - Shaojie Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu Sichuan China
| | - Xia Liao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu Sichuan China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSouth China University of Technology Guangzhou China
| | - Bin He
- National Engineering Research Center for BiomaterialsSichuan University Chengdu Sichuan China
| | - Qi Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu Sichuan China
| | - Guangxian Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu Sichuan China
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18
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Nikovia C, Sougioltzoupoulou E, Rigas V, Pitsikalis M. Macromolecular Brushes Based on Poly(L-Lactide) and Poly(ε-Caprolactone) Single and Double Macromonomers via ROMP. Synthesis, Characterization and Thermal Properties. Polymers (Basel) 2019; 11:E1606. [PMID: 31581578 PMCID: PMC6835319 DOI: 10.3390/polym11101606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 01/07/2023] Open
Abstract
Single and double poly(L-lactide) (PLLA) and poly(ε-caprolactone) (PCL) macromonomers having a norbornenyl polymerizable group were prepared by conventional Ring Opening Polymerization (ROP). These macromonomers were further subjected to ring opening metathesis polymerization (ROMP) reactions in order to produce double polymer brushes consisting of PLLA or PCL side chains on a polynorbornene (PNBE) backbone. Statistical or block ring opening metathesis copolymerization of the PLLA and PCL macromonomers afforded the corresponding random and block double brushes. Sequential ROMP of the single PLLA, PCL and PLLA macromonomers resulted in the synthesis of the corresponding triblock copolymer brush. The molecular characteristics of the macromolecular brushes were obtained by 1H-NMR spectroscopy and Size Exclusion Chromatography. The thermal properties of the samples were studied by thermogravimetric analysis, TGA, Differential Thermogravimetry, DTG and Differential Scanning Calorimetry, DSC.
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Affiliation(s)
- Christiana Nikovia
- Department of Chemistry, Industrial Chemistry Laboratory, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
| | - Eleftheria Sougioltzoupoulou
- Department of Chemistry, Industrial Chemistry Laboratory, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
| | - Vyron Rigas
- Department of Chemistry, Industrial Chemistry Laboratory, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
| | - Marinos Pitsikalis
- Department of Chemistry, Industrial Chemistry Laboratory, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
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19
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Liu S, Bai T, Ni K, Chen Y, Zhao J, Ling J, Ye X, Zhang G. Biased Lewis Pairs: A General Catalytic Approach to Ether‐Ester Block Copolymers with Unlimited Ordering of Sequences. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908904] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Shan Liu
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Kang Ni
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemical Physics University of Science and Technology of China Hefei 230026 China
| | - Ye Chen
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China
| | - Xiaodong Ye
- Hefei National Laboratory for Physical Sciences at the Microscale Department of Chemical Physics University of Science and Technology of China Hefei 230026 China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering South China University of Technology Guangzhou 510640 P. R. China
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20
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Liu S, Bai T, Ni K, Chen Y, Zhao J, Ling J, Ye X, Zhang G. Biased Lewis Pairs: A General Catalytic Approach to Ether-Ester Block Copolymers with Unlimited Ordering of Sequences. Angew Chem Int Ed Engl 2019; 58:15478-15487. [PMID: 31464086 DOI: 10.1002/anie.201908904] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/13/2019] [Indexed: 12/12/2022]
Abstract
Polymerizing epoxides after cyclic esters remains a major challenge, though their block copolymers have been extensively studied and used for decades. Reported here is a simple catalytic approach based on a metal-free Lewis pair that addresses the challenge. When the Lewis acid is used in excess of a base, selective (transesterification-free) polymerization of epoxides occurs in the presence of esters, while selectivity toward cyclic esters is achieved by an oppositely biased catalyst. Hence, one-pot block copolymerization can be performed in both ester-first and ether-first orders with selectivity being switchable at any stage, yielding ether-ester-type block copolymers with unlimited ordering of sequences as well as widely variable compositions and architectures. The selectivity can also be switched back and forth several times to generate a multiblock copolymer. Experimental and calculational results indicate that the selectivity originates mainly from the state of catalyst-activated hydroxy species.
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Affiliation(s)
- Shan Liu
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Tianwen Bai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Kang Ni
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Ye Chen
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Junpeng Zhao
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jun Ling
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xiaodong Ye
- Hefei National Laboratory for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, China
| | - Guangzhao Zhang
- Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
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21
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Palacios JK, Liu G, Wang D, Hadjichristidis N, Müller AJ. Generating Triple Crystalline Superstructures in Melt Miscible PEO‐
b
‐PCL‐
b
‐PLLA Triblock Terpolymers by Controlling Thermal History and Sequential Crystallization. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jordana K. Palacios
- POLYMAT and Polymer Science and Technology DepartmentFaculty of ChemistryUniversity of the Basque Country UPV/EHU Paseo Manuel de Lardizabal 3 20018 Donostia‐San Sebastián Spain
| | - Guoming Liu
- Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Dujin Wang
- Beijing National Laboratory for Molecular SciencesCAS Research/Education Center for Excellence in Molecular SciencesCAS Key Laboratory of Engineering PlasticsInstitute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Nikos Hadjichristidis
- King Abdullah University of Science and TechnologyPhysical Sciences and Engineering DivisionKAUST Catalysis Center Thuwal 23955 Saudi Arabia
| | - Alejandro J. Müller
- POLYMAT and Polymer Science and Technology DepartmentFaculty of ChemistryUniversity of the Basque Country UPV/EHU Paseo Manuel de Lardizabal 3 20018 Donostia‐San Sebastián Spain
- IkerbasqueBasque Foundation for Science Bilbao 48013 Spain
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22
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Xu M, Guo C, Dou H, Zuo Y, Sun Y, Zhang J, Li W. Tailoring the degradation and mechanical properties of poly(ε-caprolactone) incorporating functional ε-caprolactone-based copolymers. Polym Chem 2019. [DOI: 10.1039/c9py00174c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Functional block copolymers (COPs) were synthesized through the ring-opening polymerization, and the effects of COPs on the hydrolytic & oxidative degradation and mechanical properties of PCL/COP composites were studied.
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Affiliation(s)
- Mi Xu
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
| | - Cuili Guo
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
| | - Haozhen Dou
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
| | - Yi Zuo
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
| | - Yawei Sun
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
| | - Jinli Zhang
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
| | - Wei Li
- School of Chemical Engineering & Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science & Chemical Engineering
- Tianjin
- P.R. China
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23
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Sarkar R, Gowd EB, Ramakrishnan S. De-symmetrizing periodically grafted amphiphilic copolymers: design, synthesis and generation of Janus folded chains. Polym Chem 2019. [DOI: 10.1039/c9py00047j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The mutual immiscibility between the three segments, namely backbone HC, and pendant PEG and FC segments, causes zigzag folding of the polymer such that FC segments lie on one side and PEG on the other, thereby generating Janus-type folded chains.
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Affiliation(s)
- Ramkrishna Sarkar
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore – 560012
- India
| | - E. Bhoje Gowd
- Material Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST)
- Thiruvananthapuram – 695019
- India
| | - S. Ramakrishnan
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore – 560012
- India
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24
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Van Horn RM, Steffen MR, O'Connor D. Recent progress in block copolymer crystallization. POLYMER CRYSTALLIZATION 2018. [DOI: 10.1002/pcr2.10039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ryan M. Van Horn
- Department of Chemistry Allegheny College Meadville Pennsylvania
| | | | - Dana O'Connor
- Department of Chemistry Allegheny College Meadville Pennsylvania
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25
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Nikovia C, Theodoridis L, Alexandris S, Bilalis P, Hadjichristidis N, Floudas G, Pitsikalis M. Macromolecular Brushes by Combination of Ring-Opening and Ring-Opening Metathesis Polymerization. Synthesis, Self-Assembly, Thermodynamics, and Dynamics. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01905] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Christiana Nikovia
- Industrial Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | | | | | - Panayiotis Bilalis
- Physical Sciences and Engineering Division, Polymer Synthesis Laboratory, KAUST Catalysis Center, Thuwal 23955, Kingdom of Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, Polymer Synthesis Laboratory, KAUST Catalysis Center, Thuwal 23955, Kingdom of Saudi Arabia
| | - George Floudas
- Department of Physics, University of Ioannina, 45110 Ioannina, Greece
| | - Marinos Pitsikalis
- Industrial Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
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26
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Huang M, Dong X, Wang L, Zheng L, Liu G, Gao X, Li C, Müller AJ, Wang D. Reversible Lamellar Periodic Structures Induced by Sequential Crystallization/Melting in PBS-co-PCL Multiblock Copolymer. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b01779] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Miaoming Huang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Beijing Key Laboratory of Organic Materials Testing Technology and
Quality Evaluation, Beijing Engineering Research Center of Food Safety
Analysis, Beijing Center for Physical and Chemical Analysis, Beijing 100089, P. R. China
| | - Xia Dong
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lili Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Liuchun Zheng
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Guoming Liu
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xia Gao
- Beijing Key Laboratory of Organic Materials Testing Technology and
Quality Evaluation, Beijing Engineering Research Center of Food Safety
Analysis, Beijing Center for Physical and Chemical Analysis, Beijing 100089, P. R. China
| | - Chuncheng Li
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Alejandro J. Müller
- POLYMAT and Polymer Science and Technology Department, 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, Bilbao, Spain
| | - Dujin Wang
- Beijing National Laboratory for Molecular Science, CAS Key Laboratory
of Engineering Plastics, CAS Research/Education Center for Excellence
in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R. China
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27
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Sun Y, Wang Q, Zhang S, Li H, Zhang J, Li D, Li W. Synthesis of aromatic-doped polycaprolactone with tunable degradation behavior. Polym Chem 2018. [DOI: 10.1039/c8py00374b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A novel aromatic-doped polycaprolactone (Aro-PCL) material was synthesized through a facile PCL aminolysis-condensation polymerization incorporating the aromatic moiety to PCL chain and assessed by focusing on the dynamic aggregation and crystalline microdomains associated with the in vitro degradation properties, mechanical performance and biocompatibility.
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Affiliation(s)
- Yawei Sun
- School of Chemical Engineering & Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
- Tianjin 300350
- P. R. China
| | - Qiuyan Wang
- Key Laboratory of Cardiovascular Remodeling and Function Research
- Chinese Ministry of Education and Chinese Ministry of Health
- Qilu Hospital
- Shandong University
- Jinan 250061
| | - Shuying Zhang
- Key Laboratory of Cardiovascular Remodeling and Function Research
- Chinese Ministry of Education and Chinese Ministry of Health
- Qilu Hospital
- Shandong University
- Jinan 250061
| | - Hao Li
- Key Laboratory of Cardiovascular Remodeling and Function Research
- Chinese Ministry of Education and Chinese Ministry of Health
- Qilu Hospital
- Shandong University
- Jinan 250061
| | - Jinli Zhang
- School of Chemical Engineering & Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
- Tianjin 300350
- P. R. China
| | - Daqing Li
- Key Laboratory of Cardiovascular Remodeling and Function Research
- Chinese Ministry of Education and Chinese Ministry of Health
- Qilu Hospital
- Shandong University
- Jinan 250061
| | - Wei Li
- School of Chemical Engineering & Technology
- Tianjin University
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
- Tianjin 300350
- P. R. China
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28
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Palacios JK, Zhao J, Hadjichristidis N, Müller AJ. How the Complex Interplay between Different Blocks Determines the Isothermal Crystallization Kinetics of Triple-Crystalline PEO-b-PCL-b-PLLA Triblock Terpolymers. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b02148] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jordana K. Palacios
- POLYMAT
and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
| | - Junpeng Zhao
- Faculty
of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
- Physical
Sciences and Engineering Division, KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical
Sciences and Engineering Division, KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Alejandro J. Müller
- POLYMAT
and Polymer Science and Technology Department, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
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