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Structure-Initiator Activity Dependence of Aminimides as Thermally Latent Initiators in the Polymerization of Glycidyl Phenyl Ether - Novel aminimides were synthesized from the corresponding carboxylic acid esters, 1,1-dimethylhydrazine, and epoxides in 54-95% yields. Bulk polymerization of glycidyl phenyl ether (GPE) with 3 mol % of the aminimides was evaluated by DSC as a model process. All the DSC curves showed no exothermic peaks below 120 (degree)C but showed sharp exothermic peaks above 137 (degree)C, which indicated the good thermal latency of the aminimides. Good relationships were observed between the calculated bond length from the carbonyl carbon to the a-carbon of the aliphatic group (R--C), DSC onset temperatures, and the thermal dissociation temperatures (Td) of the aminimides. The aminimide with a longer R--C bond length showed lower Td and DSC onset temperature, that is, higher activity/
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