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Kinetics study of Ti[O(CH 2 ) 4 OCHCH 2 ] 4 initiated ring‐opening polymerization of ε‐caprolactone by differential scanning calorimetry
Author(s) -
Li Peichun,
Zerroukhi Amar,
Chen Jianding,
Chalamet Yvan,
Jeanmaire Thomas,
Xia Zhean
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.28962
Subject(s) - polymerization , differential scanning calorimetry , polymer chemistry , kinetics , activation energy , materials science , bulk polymerization , isothermal process , ring opening polymerization , caprolactone , chemistry , radical polymerization , thermodynamics , polymer , composite material , physics , quantum mechanics
The ring‐opening polymerization of ε‐caprolactone initiated by Ti[O(CH 2 ) 4 OCHCH 2 ] 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(CH 2 ) 4 OCHCH 2 ] 4 is an efficient initiator in the ring‐opening polymerization of ε‐caprolactone. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
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