INITIATING SYSTEM FOR SYNTHESIS OF DIENE RUBBER WITH HIGH CONTENT OF VINYL GROUPS, METHOD FOR PRODUCTION THEREOF AND USE THEREOF TO PRODUCE DIENE RUBBER WITH HIGH CONTENT OF VINYL GROUPS

摘要

FIELD: chemistry.;SUBSTANCE: disclosed is an initiating system for synthesis of diene rubber with high content of vinyl groups, use thereof in a method of producing homopolydienes and copolydienes with high content of vinyl groups and the method of producing diene polymers itself. An initiating system for anionic polymerisation for producing homopolydienes and/or copolydienes with content of vinyl groups per diene component higher than 80% contains: (A) at least one organolithium compound, (B) at least one di-(aminoalkyl) ether, which is a compound of formula (II): wherein R¹, R², R³, R⁴ are identical or different and respectively denote an alkyl with 1-12 carbon atoms, a cycloalkyl with 3-8 carbon atoms, an aryl with 6-10 carbon atoms or an aralkyl with 7-15 carbon atoms, and m and n are identical of different and denote integers from 1 to 8, and (C) at least one sodium alkoxide and/or sodium phenoxide.;EFFECT: obtaining polymers with high content of vinyl groups.;15 cl, 2 tbl, 23 ex