Abstract
The possibility of obtaining thermally stable epoxy compositions by modifying composition of epoxy resins at 100-130°C with 6-20 phr 1,1’-(methylene-1,4-phenylene)bismaleimide and using 9-10 phr 4,4’-diaminodiphenylmethane as curing agent was studied. The cure behavior of these systems was studied using differential scanning calorimetry (DSC) and the thermograms indicated a unimodal exothermic peak for blends. The thermal stability as studied by thermogravimetric analysis (TGA) of the cured DGEBA resin was found to improve with polyaminobismaleimide blending. Keywords: epoxy resins, differential scanning calorimetry, polyaminobismaleimide