Peroxidic fluoropolyether and its use in emulsion polymerization of fluorin-containing monomer
    1.
    发明授权
    Peroxidic fluoropolyether and its use in emulsion polymerization of fluorin-containing monomer 有权
    过氧氟聚醚及其在含氟单体乳液聚合中的应用

    公开(公告)号:US08536269B2

    公开(公告)日:2013-09-17

    申请号:US12996887

    申请日:2008-08-15

    IPC分类号: C08L27/16

    摘要: The present invention provides peroxidic fluoropolyether and a fluorine-containing dispersion obtained from polymerization of fluorine-containing monomers in the presence of peroxidic fluoropolyether as a surfactant. The peroxidic fluoropolyether can be used as surfactant for producing aqueous dispersion of fluorine-containing monomer in place of PFOA or the salts thereof. Thus the amount of PFOA or the salts thereof is reduced and the natural environment is protected. In addition, applying peroxidic fluoropolyether as surfactant and combining it with adjuvants, such as initiator, can induce the reaction moderate and can be beneficial to the polymerization control, thus reducing the amount of initiator or shortening the reaction time.

    摘要翻译: 本发明提供过氧化氟聚醚和由含氟单体在过氧化氟聚醚作为表面活性剂的存在下聚合得到的含氟分散体。 过氧化氟聚醚可用作制备含氟单体的水性分散体代替PFOA或其盐的表面活性剂。 因此,PFOA或其盐的量减少并且保护了自然环境。 此外,将过氧化氟聚醚作为表面活性剂并与助剂如引发剂结合可以引起中等反应,有利于聚合反应,从而减少引发剂的量或缩短反应时间。