Kinetics study of Ti[O(CH2)(4)OCH=CH2](4) initiated ring-opening polymerization of epsilon-caprolactone by differential scanning calorimetry

Autor: Li, Peichun, Zerroukhi, Amar, Chen, Jianding, Chalamet, Yvan, Jeanmaire, Thomas, Xia, Zhean
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 Applied Polymer Science
Journal of Applied Polymer Science, Wiley, 2008, 110 (6), pp.3990-3998
ISSN: 0021-8995
1097-4628
Popis: International audience; The ring-opening polymerization of -caprolactone initiated by Ti[O(CH2)4OCHCH2]4 was investigated by differential scanning calorimetry (DSC). Both isothermal and dynamic experiments have been applied to obtain the kinetic parameters. The apparent polymerization rate constant for different experiments was determined; the activation energy determined is 76-88 KJ/mol by the isothermal method and 75-86 KJ/mol by the dynamic method. Using the obtained kinetic parameters, a model to predict the polymerization process was developed and can well describe the polymerization process, which demonstrates that DSC is a convenient and reliable method to study the kinetics of ring-opening polymerization. The kinetic results also demonstrate that Ti[O(CH2)4OCHCH2]4 is an efficient initiator in the ring-opening polymerization of -caprolactone
Databáze: OpenAIRE
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