期刊
POLYMER
卷 46, 期 19, 页码 7989-8000出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2005.06.117
关键词
thermosets; kinetic; mechanistic model
The polymerization kinetics of a monoamine (p-toluidine), a diamine (4,4-diaminodiphenylmethane) or a mixture of both amines reacted with an epoxy prepolymer, diglycidylether of bisphenol A (DGEBA), was analyzed using differential scanning calorimetry. A simple mechanistic model, consisting of an epoxy-hydroxyl complex formation out of equilibrium, including the possibility that amino hydrogens react with free epoxy groups or with the epoxy-hydroxyl complex, and taking into account the possible difference of the reactivity of amino hydrogens, provided a reasonable fitting of the whole set of experimental results with a lonely set of activation energies. (c) 2005 Elsevier Ltd. All rights reserved.
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