[EN] COPOLYMERS PREPARED BY USING BOTH ANIONIC POLYMERIZATION TECHNIQUES AND COORDINATION CATALYSTS<br/>[FR] COPOLYMERES PREPARES A LA FOIS PAR MISE EN OEUVRE DE TECHNIQUES DE POLYMERISATION ANIONIQUE ET PAR COORDINATION
申请人:BRIDGESTONE CORP
公开号:WO2001049764A1
公开(公告)日:2001-07-12
A process for forming a copolymer comprising the steps of (i) preparing a living polymer segment by using anionic polymerization techniques, (ii) modifying the living polymer by reacting it with an alkyl metal halide to form an organometallic polymeric intermediate, and (iii) preparing a second polymer segment from the organometallic polymeric intermediate by combining the intermediate, conjugated diene monomer, and a coordination catalyst that will polymerize the conjugated diene monomer.