Polyazomethines based on 3,3’-diaminodiphenylsulphone and aromatic dialdehydes

Abstract

New polyazomethines were obtained by low-temperature polycondensation of 3,3’-diaminodiphenylsulfone and aromatic dialdehydes in solution. The optimal conditions for the synthesis of polymers were found and the structure of the resulting structures was confirmed. It is shown that the synthesized polymers have sufficient manufacturability; they dissolve well in organic solvents and melt. It was found that the synthesized polyazomethines are heat-resistant polymers, and the process of their degradation proceeds in one stage. It has been established that the obtained polyazomethines exhibit thermo tropic liquid-crystal properties during melting.