Investigation of the process of polyimide formation from complexes of the diester of benzophenonetetracarboxylic acid with diamines
摘要:
The kinetics of thermal imidization of the H-complexes derived from the diethyl ester of 3,3',4,4'-benzophenonetetracarboxylic acid (EBZP) and various diamines have been studied. A comparison of kinetic parameters obtained for the imidization of H-complexes based on ethyl or methyl esters of this acid has disclosed the differences in the behavior of each of the two H-bonds and the contribution of each bond to the mechanism of polyimide formation from the respective H-complexes.