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Kinetic parameters estimation for unsaturated polyester‐styrene systems
Author(s) -
Lin ChaoMing,
Weng ChengI,
Ho ChengTer
Publication year - 2000
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11162
Subject(s) - autocatalysis , thermosetting polymer , kinetic energy , differential scanning calorimetry , materials science , isothermal process , polyester , curing (chemistry) , thermodynamics , styrene , polymer chemistry , kinetics , copolymer , composite material , polymer , physics , quantum mechanics
A model modified from the traditional kinetic model is proposed for the determination of the kinetic parameters describing the autocatalytic reaction of polyesterstyrene systems. The proposed method utilizes three experimental data values from the \documentclass{article}\pagestyle{empty}\begin{document}$ \frac{{d\alpha }}{{dt}} $\end{document} vs. α curve—the initial value, the peak value, and the maximum value—to solve the kinetic parameters. The curing reaction of a thermosetting polyester was investigated by using the isothermal and dynamic techniques of differential scanning calorimetry (DSC). The results show that the reaction orders m , n and the ultimate conversion are not constant, and instead are functions of temperature. The estimated kinetic curves agree well with the experimental DSC data.