Analysis of the cure kinetics of epoxy/imidazole resin systems
Article first published online: 10 MAR 2003
Copyright © 1990 John Wiley & Sons, Inc.
Journal of Applied Polymer Science
Volume 39, Issue 3, pages 721–738, 5 February 1990
How to Cite
Heise, M. S. and Martin, G. C. (1990), Analysis of the cure kinetics of epoxy/imidazole resin systems. J. Appl. Polym. Sci., 39: 721–738. doi: 10.1002/app.1990.070390321
- Issue published online: 10 MAR 2003
- Article first published online: 10 MAR 2003
- Manuscript Accepted: 23 JAN 1989
- Manuscript Received: 18 JAN 1989
The reaction kinetics for the cure of epoxy resins with imidazoles were determined from Fourier transform infrared spectroscopy and differential scanning calorimetry studies. The diglycidyl ether of bisphenol A and phenyl glycidyl ether were cured with various concentrations of 2-ethyl-4-methyl-imidazole ranging from 4.0 to 100.0 mol %. The first step in the curing process is the formation of epoxide/imidazole adducts. These adducts initiate the etherification reaction which crosslinks the resin. The kinetics were determined and confirmed for both the adduct and the etherification reactions as a function of the imidazole concentration. A model was developed and used to predict the concentrations of the unreacted epoxide groups and the reaction products for a wide range of imidazole concentrations and cure temperatures.