Dynamic star polymers and a method for the synthesis thereof
    2.
    发明授权
    Dynamic star polymers and a method for the synthesis thereof 失效
    动态星形聚合物及其合成方法

    公开(公告)号:US6130291A

    公开(公告)日:2000-10-10

    申请号:US90443

    申请日:1998-06-04

    CPC分类号: C08F297/00 C08L53/00

    摘要: A dynamic star polymer contains a plurality of at least three substantially identical block copolymers, each block copolymer including an aromatic polymer moiety having a glass transition temperature of at least about 95.degree. C., and an aliphatic polymer moiety incompatible with the aromatic polymer moiety. The aromatic moieties of each of the formed block copolymers aggregate to form a chemically uncrosslinked core, while the aliphatic polymer moieties radiate outwardly from the core. The multi-arm star polymer is uniquely capable of changing its molecular structure under external influences, and the core thereof preferably exhibits thermoplastic characteristics.

    摘要翻译: 动态星形聚合物包含多个至少三个基本相同的嵌段共聚物,每个嵌段共聚物包括具有至少约95℃的玻璃化转变温度的芳族聚合物部分和与芳族聚合物部分不相容的脂族聚合物部分。 每个形成的嵌段共聚物的芳族部分聚集形成化学上未交联的核心,而脂族聚合物部分从芯部向外辐射。 多臂星形聚合物在外部影响下独特地能够改变其分子结构,其核心优选表现出热塑性。