Copolymerisation of ε-caprolactone and trimethylene carbonate catalysed by methanesulfonic acid
| Autor: | Alain Deffieux, João M. Campos, M. Rosário Ribeiro, M. Filipa Ribeiro, Frédéric Peruch |
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| Přispěvatelé: | Laboratoire de Chimie des Polymères Organiques (LCPO), Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC), Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), Team 1 LCPO : Polymerization Catalyses & Engineering, Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Ecole Nationale Supérieure de Chimie, de Biologie et de Physique (ENSCBP)-Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC) |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry Dispersity General Physics and Astronomy 02 engineering and technology Carbon-13 NMR 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Methanesulfonic acid 0104 chemical sciences chemistry.chemical_compound [CHIM.POLY]Chemical Sciences/Polymers chemistry Polymer chemistry Materials Chemistry Copolymer Reactivity (chemistry) Trimethylene carbonate 0210 nano-technology Bifunctional Caprolactone ComputingMilieux_MISCELLANEOUS |
| Zdroj: | European Polymer Journal European Polymer Journal, Elsevier, 2013, 49 (12), pp.4025-4034. ⟨10.1016/j.eurpolymj.2013.09.008⟩ |
| ISSN: | 0014-3057 1873-1945 |
| DOI: | 10.1016/j.eurpolymj.2013.09.008 |
| Popis: | The copolymerisation of e-caprolactone (e-CL) and trimethylene carbonate (TMC) catalysed by methanesulfonic acid was investigated. Preliminary copolymerisation tests using a monofunctional initiator confirm that the side bidirectional propagation previously detected in the homopolymerisation of TMC is also present in the copolymerisation. The comonomers in the e-CL/TMC system do not follow first order kinetics. The values of the reactivity ratios obtained by the Kellen–Tudos method ( r e-CL = 2.90; r TMC = 0.62) suggest that random copolymerisation can be achieved, although the copolymer will be richer in e-CL. Dihydroxyl-telechelic e-CL/ TMC random copolymers were prepared using a bifunctional initiator. 1 H and 13 C NMR, SEC and DSC measurements show that the poly(TMC- co -e-CL) samples presented the expected microstructural characteristics, a unimodal molar-mass distribution and a very narrow polydispersity. Based on these features a novel route for the preparation of block copolyesters with tuned properties, and highly regarded in the development of materials for biomedicine, may be foreseen. |
| Databáze: | OpenAIRE |
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