Microstructure–property relationship of l-lactide/trimethylene carbonate/glycolide terpolymers as cardiovascular stent material
| Autor: | Zhiqian Lu, Gongxi Wang, Jianting Dong, Lan Liao, Zhongyong Fan, Suming Li |
|---|---|
| Přispěvatelé: | Institut d'Histoire de la Pensée Classique (IHPC), Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon), Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), École normale supérieure de Lyon (ENS de Lyon)-Université Lumière - Lyon 2 (UL2)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2015 |
| Předmět: |
Lactide
Materials science Polymers and Plastics Organic Chemistry General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Microstructure 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Crystallinity Differential scanning calorimetry chemistry Polymerization Polymer chemistry Materials Chemistry Copolymer [CHIM]Chemical Sciences Moiety Trimethylene carbonate 0210 nano-technology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | European Polymer Journal European Polymer Journal, Elsevier, 2015, 66, pp.429-436. ⟨10.1016/j.eurpolymj.2015.03.017⟩ European Polymer Journal, 2015, 66, pp.429-436. ⟨10.1016/j.eurpolymj.2015.03.017⟩ |
| ISSN: | 0014-3057 1873-1945 |
| DOI: | 10.1016/j.eurpolymj.2015.03.017 |
| Popis: | A series of terpolymers with various compositions were synthesized by ring-opening polymerization of l -lactide (LLA), trimethylene carbonate (TMC) and glycolide (GA), using stannous (II) octoate as initiator. The microstructure–property relationship of the terpolymers was investigated with the aim of evaluating their potential as cardiovascular stent material. The chain microstructure of the PLLA–TMC–GA terpolymers was examined by means of both 1H and 13C nuclear magnetic resonance (NMR) analysis, in comparison with corresponding PLLA–TMC copolymers. The results show that the incorporation of GA moiety instead of TMC moiety leads to shorter average LLA block length. Differential scanning calorimetry (DSC) results show a close relationship between the crystallization behavior and the microstructural sequence. The crystallinity of PLLA-based copolymers mainly depends on the average LLA block length. The mechanical and thermal degradation properties are also affected by both the composition and the chain microstructure, which is of major importance for the development of bioresorbable cardiovascular stent. |
| Databáze: | OpenAIRE |
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