Poly(4,4′‐dipiperidyl)amides

Abstract

AbstractPolyamides from 4,4′‐dipiperidyl, 1,2‐ethylene‐, and 1,3‐propylene‐ bridged dipiperidyls were prepared via solution and interfacial polycondensation techniques. In sharp contrast to the polyamides from N,N′‐alkyl‐substituted alkylene diamines and aromatic diacids, the polyamides from 4,4′‐dipiperidyls are high‐melting (up to 455°C) and alcohol‐insoluble. Tough films were cast from formic acid solutions of the polymers; fiber of good physical properties was prepared from a formic acid solution of the polyterephthalamide of 1,2‐di(4‐piperidyl)ethane.