Patent ID: 6770737
Filing Date: 2004-08-03
Classification: C08G,C09D

Abstract:
A process for producing a polymer of formula (2) in high yield, which comprises subjecting a monomer of formula (1): to ring-opening polymerization, alone or together with another monomer containing an epoxy group, to produce said polymer of formula (2): wherein A represents a hydrogen atom or an alkyl group of 1-6 carbon atoms and R represents a hydrogen atom, a chloromethyl group, straight chain alkyl group or branched chain alkylene group of 1-12 carbon atoms, phenyl group, straight or branched chain alkyloxymethyl group of 1-12 carbon atoms or phenoxymethyl group, and n and m each represent a molar fraction, n being 100-1 mol %, m being 0-99 mol % with n+m=100,said polymerization reaction being carried out in the presence of an anionic initiator at a temperature of âˆ’78Â° C. to 80Â° C., resulting in selective ring-opening polymerization of the oxirane ring of the monomer of formula (1) but not the oxetane ring of the monomer of formula (1).