Surface-active block copolymers prepared by controlled radical polymerization
    10.
    发明申请
    Surface-active block copolymers prepared by controlled radical polymerization 审中-公开
    通过控制自由基聚合制备的表面活性嵌段共聚物

    公开(公告)号:US20050131144A1

    公开(公告)日:2005-06-16

    申请号:US11047940

    申请日:2005-02-01

    摘要: A subject-matter of the present invention is a surface-active block copolymer comprising at least one hydrophilic block and at least one hydrophobic block which is prepared by a “living” or “controlled” preparation process, the said copolymer exhibiting a number-average molecular mass of between 1 000 and 50 000, preferably between 2 000 and 20 000, more preferably still between 4 000 and 16 000, a glass transition temperature of the hydrophobic block of less than 30° C., preferably of less than 25° C., and greater than −100° C., and a surface tension of less than 60 millinewtons per metre (mN/m), preferably of less than 50 mN/m, measured at a concentration in demineralized water of less than or equal to 10−4 mol/l, and the transfer agent optionally having been rendered inert with respect to the said radical polymerization. The copolymers obtained can be used in particular in detergency or in paints, adhesives and building materials.

    摘要翻译: 本发明的主题是包含至少一个亲水嵌段和至少一个通过“活性”或“受控”制备方法制备的疏水嵌段的表面活性嵌段共聚物,所述共聚物显示出数均分子量 分子量在1000至50000之间,优选在2 000至20 000之间,更优选在4 000至16 000之间,疏水嵌段的玻璃化转变温度低于30℃,优选小于25° 并且大于-100℃,并且在软化水中的浓度小于或等于1的情况下测量的表面张力小于60毫牛顿每米(mN / m),优选小于50mN / m 至10 -4 mol / l,并​​且转移剂任选地相对于所述自由基聚合而变得惰性。 所获得的共聚物特别可用于洗涤剂或涂料,粘合剂和建筑材料中。