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    Porous styrene polyfunctional methacrylate polymers
    7.
    发明授权
    Porous styrene polyfunctional methacrylate polymers 失效
    多孔苯乙烯多官能甲基丙烯酸酯聚合物

    公开(公告)号：US3870663A

    公开(公告)日：1975-03-11

    申请号：US44655574

    申请日：1974-02-27

    申请人： ROHM & HAAS

    发明人： CLEMENS DAVID H ,  HAMANN HERMAN C

    IPC分类号： B01J41/14 ,  C08F8/44 ,  C08J9/28 ,  C08F19/10 ,  C08F19/20

    CPC分类号： C08J9/286 ,  B01J41/14 ,  C08F8/44 ,  C08F212/02

    摘要： A porous copolymer resin containing a major amount of styrene, or other aromatic vinyl constituent, and cross-linked with a minor amount of an aliphatic polyfunctional methacrylate having at least three methacrylate groups such as trimethylolpropane trimethacrylate. The resin is prepared by suspension polymerization and is thereafter given a chloromethylation and aminolysis treatment to convert it into a strong base resin. Other methods of preparing the strong base resins not involving direct chloromethylation can also be used. The resin shows unusual physical stability and is particularly useful in stringent applications such as the recovery of uranium complexes from acidic leach liquors.

    摘要翻译： 含有大量苯乙烯或其它芳族乙烯基成分的多孔共聚物树脂，并与少量具有至少三个甲基丙烯酸酯基的脂族多官能甲基丙烯酸酯交联，例如三羟甲基丙烷三甲基丙烯酸酯。 树脂通过悬浮聚合制备，然后进行氯甲基化和氨解分解处理，将其转化成强碱性树脂。 也可以使用制备不涉及直接氯甲基化的强碱性树脂的其它方法。 该树脂显示出不寻常的物理稳定性，并且在严格的应用中特别有用，例如从酸性浸出液中回收铀配合物。