Aryl ether‐ketone segmented polypyromellitimides

Abstract

AbstractAromatic ether‐ketone segments have been incorporated into polyimide backbone to impart the well‐known thermoplastic properties of polyether ketones. For this purpose three aromatic diamines containing ether and ketone connecting groups between aromatic rings have been prepared and polymerized with pyromellitic dianhydride to yield polyimides. The thermal behavior of the polyimide cast films has been investigated.