LIVING RADICAL POLYMERIZATION INITIATOR SYSTEM AND PROCESS FOR PRODUCING POLYMER BY USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a living radical polymerization initiator system which can be applied in a wide range in the kind of a monomer and in the combination of monomers where two or more monomers are used, so as to submit a radical polymerizable monomer to living radical polymerization while controlling the molecular weight and obtain a polymer of a narrow molecular weight distribution.;SOLUTION: The living radical polymerization initiator system comprises the following components (A), (B) and (C): (A) a halogenopentamethylcyclopentadienylbis-(triarylphosphine)ruthenium; (B) an α-halogenocarbonyl compound or an α-halogeno-carboxylic acid ester; and (C) a Lewis acid.;COPYRIGHT: (C)2001,JPO