METHOD FOR THE PRODUCTION OF A COPOLYMER BASED ON VINYL AROMATIC COMPOUNDS AND CONJUGATED DIENES.

摘要

The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst at temperatures in the range from 20 to 130 C. The copolymers produced according to the present invention demonstrate clearly improved processing characteristics as a result of selective masticating effect and good mechanical properties.