Method for preparing (co)polymers having a narrow molecular weight distribution
    13.
    发明授权
    Method for preparing (co)polymers having a narrow molecular weight distribution 失效
    制备具有窄分子量分布的(共)聚合物的方法

    公开(公告)号:US06303722B1

    公开(公告)日:2001-10-16

    申请号:US09125972

    申请日:1998-12-10

    CPC classification number: C08F297/02 C08F4/00 C08F297/026 C08F297/048

    Abstract: The present invention concerns a novel method for preparing polymers (preferably (meth)acrylate polymers and copolymers) having a narrow molecular weight distribution by metal-free anionic polymerization in the presence of a phosphonium salt of a nitrogen, oxygen and/or sulfur anion. The present invention also concerns block copolymer and methods of making the same using anionic polymerization in the presence of the phosphonium salt to prepare at least one block of the copolymer.

    Abstract translation: 本发明涉及一种在氮,氧和/或硫阴离子的鏻盐存在下通过无金属阴离子聚合制备具有窄分子量分布的聚合物(优选(甲基)丙烯酸酯聚合物和共聚物)的新方法。 本发明还涉及嵌段共聚物和在鏻盐存在下使用阴离子聚合制备该共聚物以制备至少一个共聚物嵌段的方法。

Patent Agency Ranking