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3 条记录 (耗时 0.007 秒)

    POLYMER PARTICLES
    1.
    发明公开
    POLYMER PARTICLES 审中-公开
    聚合物粒子

    公开(公告)号：EP2401304A4

    公开(公告)日：2012-09-05

    申请号：EP10745726

    申请日：2010-02-24

    申请人： UNIV SYDNEY

    发明人： HAWKETT BRIAN STANLEY ,  PHAM THI THUY BINH ,  SUCH CHRISTOPHER HENRY

    IPC分类号： C08F2/22 ,  C08F257/00 ,  C08F279/06 ,  C08F287/00

    CPC分类号： C08F2/20 ,  C08F2/38 ,  C08F285/00 ,  C08F287/00 ,  C08F293/005 ,  C08F2438/03 ,  C08L2666/02 ,  C09D151/003 ,  C09J151/003 ,  C08F212/08 ,  C08F220/14 ,  C08F212/36

    摘要： The present invention relates to a method of forming polymer on the surface of polymer particles, the method comprising: (i) providing a dispersion comprising a continuous aqueous phase, a dispersed organic phase comprising one or more ethylenically unsaturated monomers, and a RAFT agent as a stabiliser for said organic phase; (ii) polymerising the one or more ethylenically unsaturated monomers under the control of the RAFT agent to form an aqueous dispersion of seed polymer particles; (iii) crosslinking the seed polymer particles; (iv) swelling the crosslinked seed particles with one or more ethylenically unsaturated monomers to form an aqueous dispersion of monomer swollen crosslinked seed polymer particles; (v) increasing the temperature of the monomer swollen crosslinked seed polymer particles to expel at least some of the monomer therein onto the surface of the particles; and polymerising at least the expelled monomer to form polymer on the surface of the particles.