NEW UNSATURATED POLY(AMIDOBEZIMIDAZOLES)

A number of unsaturated poly(amid obenzimidazoles) based on itaconic a cid dichloroanhydride and diamines bearing benzimidazole rings were sy nthesized by low-temperature polycondensation in solution. Linear unsa turated poly(amidobenzimidazoles) an soluble in organic solvents, have a large difference between the softening temperature send the degrada tion temperature, and are capable of producing cross-linked, three-dim ensional products that exhibit high thermal stability and good mechani cal properties upon thermal processing.