Ethylene‐hindered amine copolymer: A self‐stabilized polyolefine

Abstract

Abstract Monomers having a norbornene as polymerizable group and a 2,2,6,6‐tetramethyl piperidine as stabilizing moiety were prepared. This monomer was successfully copolymerized with ethylene using VAc 3 /AlEt 2 Cl as the catalytic system. Copolymers exhibited better stability under accelerated aging than polyethylene stabilized by classical blending with commercial hindered amines. Any attempt made to obtain copolymers using a high activity TiCl 4 /MgCl 2 catalyst was unsuccessful. © 1994 John Wiley & Sons, Inc.