Thermally Stimulated Discharge Current Analysis of Epoxy Resins

摘要

Network polymers resins have been prepared from selected binary combinations of diglycidl ether of butanediol or diglycidl ether of bisphenol A with ethylene diamine, diethylene triamine, diaminodiphynyl methane, or diaminodiphenyl sulfone. Thermally stimulated discharge current analyses were performed on these materials in an effort to elucidate significant molecular motions through the temperature range, approximately 80 K to 460 K. Assignments of dielectrically and mechanically active loss processes to motions involving penyl groups, pendant hydroxyl groups, or aliphatic backbone segments could be made in cases where there were clear indications based on the temperature-dependence of activation energy. (Author)