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    Method for producing monodisperse gel-type ion exchangers
    1.
    发明申请
    Method for producing monodisperse gel-type ion exchangers 审中-公开
    单分散凝胶型离子交换剂的制造方法

    公开(公告)号：US20060199892A1

    公开(公告)日：2006-09-07

    申请号：US10524923

    申请日：2003-08-02

    申请人： Wolfgang Podszun ,  Reinhold Klipper ,  Dmitry Chernyshov

    发明人： Wolfgang Podszun ,  Reinhold Klipper ,  Dmitry Chernyshov

    IPC分类号： C08F2/16

    CPC分类号： B01J39/20 ,  B01J41/14 ,  C08F8/36 ,  C08F2800/20 ,  C08F212/08 ,  C08F212/36

    摘要： The invention relates to a process for producing monodisperse ion-exchanger gels with a particle size of from 5 to 500 μm, obtainable via a) production of a non-crosslinked monodisperse seed polymer with a particle size of from 0.5 to 20 μm via free-radical-initiated polymerization of monoethylenically unsaturated compounds in the presence of a non-aqueous solvent, b) addition of an active styrene-containing monomer mixture as feed to this seed polymer, permitting the monomer mixture to penetrate into and swell the seed, and polymerizing the mixture at an elevated temperature, if appropriate with one or more repetitions of the steps of addition of monomer mixture, penetration and swelling, and polymerization, and where during the final addition the monomer mixture comprises from 2 to 50% by weight of crosslinking agent, and c) functionalization by means of a sulfonating agent to give cation exchangers or via amidomethylation with subsequent hydrolysis to give anion exchangers, or chloromethylation with subsequent amination.

    摘要翻译： 本发明涉及一种生产粒径为5至500μm的单分散离子交换凝胶的方法，可通过以下步骤获得：a）通过自由基聚合产生粒径为0.5至20μm的非交联单分散种子聚合物， 在非水溶剂的存在下，单烯键式不饱和化合物的自由基引发的聚合，b）加入含有活性苯乙烯的单体混合物作为该种子聚合物的进料，允许单体混合物渗入并膨胀种子，并聚合 混合物在升高的温度下，如果合适，可以通过一次或多次重复加入单体混合物的步骤，渗透和溶胀以及聚合反应，并且其中在最终加入期间，单体混合物包含2-50重量％的交联剂 ，和c）通过磺化剂官能化以产生阳离子交换剂或通过酰胺化甲基化随后水解得到阴离子交换剂，或chl 甲基化，随后胺化。