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PREPARATION AND CHARACTERIZATION OF MONOSIZED CROSS-LINKED PMMA RESINS WITH HYDROPHILIC SURFACE
Author(s): GUO Yuhan, YANG Yanguo, SU Tiansheng
Pages: 641-
643
Year: 2000
Issue:
5
Journal: ACTA POLYMERICA SINICA
Keyword: 颗粒单分散微球; 表面亲水性树脂; HPLC填料;
Abstract: 用种子溶胀聚合方法,合成出了粒度单分散的交联聚甲基丙烯酸甲酯微球.将微球通过水解,使其转化为表面带羧基的树脂.分别用多糖化合物Dextran和DEAE-Dextran对水解树脂表面进行包覆涂层,然后用n-丁二醇双环氧丙醚分别进行交联,制备出两种表面带高交联多糖覆盖层的树脂.以两种改性树脂为填料,以人血清蛋白为试样,用HPLC方法对树脂的亲水性能进行了表征.研究表明,两种改性树脂均有很好的亲水性,蛋白质的回收率分别在97%和99%以上,并有良好的机械强度和化学稳定性.
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