Synthesis, kinetic study, and application of Ti[O(CH2)(4)OCH=CH2](4) in ring-opening polymerization of epsilon-caprolactone and radical polymerization
| Autor: | Li, Peichun, Zerroukhi, Amar, Chen, Jianding, Chalamet, Yvan, Jeanmaire, Thomas, Xia, Zhean |
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| Přispěvatelé: | Laboratoire de Rhéologie des Matières Plastiques (IMP-LRMP), Centre National de la Recherche Scientifique (CNRS)-Université Jean Monnet [Saint-Étienne] (UJM)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Institute of Materials Science and Engineering, East China University of Science and Technology, East China University of Science and Technology, Lesur, Hélène |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Journal of polymer science. Part A-1, Polymer chemistry Journal of polymer science. Part A-1, Polymer chemistry, John Wiley & Sons, 2008, 46 (23), pp.7773-7784 |
| ISSN: | 0449-296X 1542-9350 |
| Popis: | International audience; Ti[O(CH2)4OCHCH2]4, used for the ring-opening polymerization (ROP) of -caprolactone, was synthesized through the ester-exchange reaction of titanium n-propoxide and 1,4-butanediol vinyl ether, and its chemical structure was confirmed by nuclear magnetic resonance (1H NMR) and thermogravimetric analysis (TGA). The mechanism and kinetics of Ti[O(CH2)4OCHCH2]4-initiated bulk polymerization of -caprolactone were investigated. The results demonstrate that Ti[O (CH2)4OCHCH2]4-initiated polymerization of -caprolactone proceeds through the coordination-insertion mechanism, and all the four alkoxide arms in Ti[O (CH2)4OCHCH2]4 share a similar activity in initiating ROP of -caprolactone. The polymerization process can be well predicted by the obtained kinetic parameters, and the activation energy is 106 KJ/mol. Then, the rheological method was employed to investigate the feasibility of producing the crosslinked poly(-caprolactone)-poly (n-butyl acrylate) network by using Ti[O(CH2)4OCHCH2]4 as the ROP initiator. The tensile test demonstrates that the in situ generated crosslinked PCL-PBA network in PMMA matrix provides the possibility of ameliorating the tensile properties of PMMA |
| Databáze: | OpenAIRE |
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