The curing reaction of the new bis(2,3‐epoxypropyl) 4,4′‐carbonyldi‐ω‐phthalimidoalkanoates 1a–c was studied with several aromatic diamines 2a–c as curing agents. The process was followed by means of spectrophotometric techniques. The influence of the nature of the curing agent on the reaction rate was examined. The adduct formation yielding first chain extension, is the first step of the reaction, followed by crosslinking, once the gel point has been reached. The products obtained were found to be rather thermostable.
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Serra et al. (1986) studied this question.
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