Cure kinetics of diglycidylether of bisphenol A-ethylenediamine revisited using a mechanistic model

被引：35

作者：

Riccardi, CC

Fraga, F

Dupuy, J

Williams, RJJ

机构：

[1] Univ Mar del Plata, Inst Mat Sci & Technol, INTEMA, RA-7600 Mar Del Plata, Argentina

[2] Consejo Nacl Invest Cient & Tecn, Natl Res Council, RA-7600 Mar Del Plata, Argentina

[3] Univ Santiago de Compostela, Fac Ciencias, Lugo 27002, Spain

[4] Inst Natl Sci Appl, Mat Macromol Lab, UMR CNRS 5627, F-69621 Villeurbanne, France

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2001年 / 82卷 / 09期

关键词：

epoxy-amine kinetics; DGEBA-EDA kinetics; mechanistic kinetic models;

D O I：

10.1002/app.2080

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The polymerization kinetics of the reaction between diglycidylether of bisphenol A (DGEBA) and ethylenediamine (EDA) was analyzed, using dynamic scanning calorimetry, in both isothermal and programmed heating-rate modes. A simple mechanistic model, consisting of an equilibrium reaction generating an epoxy-hydroxyl complex, and including two possible mechanisms for the consumption of amine hydrogens [(1) with free epoxy groups, (2) with the epoxy-hydroxyl complex], provided a reasonable fitting of the whole set of experimental results. It was found that the equilibrium constant decreased with temperature, making less important the reaction mechanism involving the epoxy-hydroxyl complex. (C) 2001 John Wiley & Sons, Inc.

引用

页码：2319 / 2325

页数：7

共 56 条

[1] Cure kinetics of an epoxy system containing tetraglycidyl-4,4'-diaminodiphenylmethane (TGDDM) and a multifunctional novolac glycidyl ether cured with 4,4'-diaminodiphenylsufone (DDS) [J].