Conducting poly (p-xylylidenes)
    1.
    依法登记的发明
    Conducting poly (p-xylylidenes) 失效
    导电聚对苯甲撑

    公开(公告)号:USH183H

    公开(公告)日:1987-01-06

    申请号:US766723

    申请日:1985-08-19

    IPC分类号: C08G61/02 H01B1/12

    CPC分类号: C08G61/02 H01B1/128

    摘要: Poly (p-xylylidenes) having a high degree of polymerization in the form of films, foams or highly molecularly oriented films and fibers are chemically modified from insulators to conducting materials by exposure to either p- or n-type dopants. Poly (p-xylylidene) films are cast from aqueous solutions of a poly (p-xylene-.alpha.-dimethylsulfonium salt) polyelectrolyte. Processing of the films at elevated temperatures can yield both fibers and foams. Exposure of the poly (p-xylylidene) films, fibers or foams to p-type dopants result in an up to fifteen order of magnitude increase in conductivity, while n-type coping yields a nine order of magnitude increase. Doping of molecularly oriented films and fibers yields a highly anisotropic conductor with a greatly improved conductivity in the orientation direction.