文献类型：期刊文献

英文题名：Kinetics study of Ti[O(CH2)4OCH=CH2] 4 initiated ring-opening polymerization of Ε-caprolactone by differential scanning calorimetry

作者：Li, Peichun[1,2]; Zerroukhi, Amar[1]; Chen, Jianding[2]; Chalamet, Yvan[1]; Jeanmaire, Thomas[1]; Xia, Zhean[2]

机构：[1] Ingénierie des Matériaux Polymères/LRMP, UMR CNRS 5223, Université Jean Monnet, 23 rue du Dr Paul Michelon, 42023, Saint-Etienne, Cedex 2, France; [2] Institute of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2008

卷号：110

期号：6

起止页码：3990

外文期刊名：Journal of Applied Polymer Science

收录：EI(收录号：20085211808683)

语种：英文

外文关键词：Rate constants - Ring opening polymerization - Calorimeters - Isotherms - Activation energy - Kinetic parameters - Titanium compounds

摘要：The ring-opening polymerization of Ε-caprolactone initiated by Ti[O(CH2)4OCH=CH2]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)4OCH=CH 2]4 is an efficient initiator in the ring-opening polymerization of E-caprolactone. ? 2008 Wiley Periodicals, Inc.