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Isothermal differential scanning calorimetry study of the cure kinetics of a novel aromatic maleimide with an acetylene terminal
Author(s) -
Luo Zhenhua,
Wei Liuhe,
Li Wanwan,
Liu Feng,
Zhao Tong
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.28090
Subject(s) - differential scanning calorimetry , maleimide , monomer , activation energy , isothermal process , polymer chemistry , kinetics , materials science , order of reaction , acetylene , chemistry , reaction rate constant , thermodynamics , composite material , organic chemistry , polymer , physics , quantum mechanics
An isothermal differential scanning calorimetry (DSC) study on the cure kinetics was performed on N ‐(3‐acetylenephenyl)maleimide (3‐APMI) monomer to determine a suitable cure model. The 3‐APMI monomer reported in our prior article was a novel aromatic maleimide monomer with an acetylene terminal that would be an ideal candidate for heat‐resistant composites. The isothermal DSC study was carried out in the temperature range 150–200°C. Although the cure temperatures were different, the shapes of the conversion curves were similar, and all of the cure reactions could be described by an n th‐order kinetic model. In particular, the cure reaction at the initial stage was a first‐order kinetic reaction. The cure kinetic parameters of the 3‐APMI monomer, including the reaction model, activation energy, and frequency factor, were determined. This information was very useful for defining the process parameters, final properties, and quality control of the cured 3‐APMI monomer. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008