Preparation of block copolymers using dimethyl-bis(methylcyclopentadienyl)titanium.

摘要

Dismethylbis(methylcyclopentadienyl)titanium is an effective activator for titanium trichloride in the polymerization and copolymerization of 1-olefins, giving novel thermoplastic elastomeric block copolymers of the general formula (AB)nA wherein A is a crystalline polypropylene block, B is a random ethylene-propylene copolymer block and n is 1 to 12.