| 简介 |
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 R, R, R, Rare 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 |
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