A process for the preparation of elastomeric polyarylate - graft copolymers and with a polyarylate dihydropyridines of aryl cyclo butenes - end group.

摘要

Novel thermoplastic elastomeric graft copolymers, formed via a cycloaddition reaction of an elastomer containing carbon-carbon double bonds with an aromatic polyether, end-capped with a 1,2- dihydroarylcyclobutenyl moiety, are described. The materials exhibit improved UV and thermal oxidative stability, attractive mechanical properties, and superior heat resistance. They are uniquely suited for impact modification of various thermoplastics such as polyesters, polyether imides, and the like.