发明名称 |
ABA TRIBLOCK COPOLYMER AND PROCESS FOR PRODUCING THE SAME |
摘要 |
To provide a novel ABA-type triblock copolymer of vinyl ether series, comprising polyvinyl ether and an oxystyrene-series unit, and a process of producing the ABA-type copolymer at a series of steps. The invention relates to a novel ABA-type triblock copolymer comprising Segment A comprising an oxystyrene-series repeat unit (a) and Segment B comprising a vinyl ether-series repeat unit (b), in which the Segment A and the Segment B are bonded together with a single bond, and to a simple process of producing the same. The triblock copolymer can be produced at a series of steps in a simple manner, comprising living cationic polymerization of a vinyl ether-series monomer such as ethyl vinyl ether in the presence of a bifunctional initiator and a Lewis acid, and subsequently adding an oxystyrene-series monomer such as p-hydroxystyrene for living cationic polymerization.
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申请公布号 |
EP2186837(A1) |
申请公布日期 |
2010.05.19 |
申请号 |
EP20080765753 |
申请日期 |
2008.06.19 |
申请人 |
MARUZEN PETROCHEMICAL CO., LTD. |
发明人 |
YOSHIDA, NORIHIRO;AOKI, HIJIRI;MITA, TAKAHITO;YAMAGUCHI, AMI;HABA, KAZUHIKO;SAWADA, GORO |
分类号 |
C08F297/00;C08F16/14 |
主分类号 |
C08F297/00 |
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