摘要
聚苯乙烯氯球经Ｆｒｉｅｄｅｌ－Ｃｒａｆｔｓ后交联反应以后再磺化，合成一类具有较高交联度和较低交换容量的阳离子交换树脂。经测定其对Ａｇ＋及其它贱金属离子的交换性能，研究了树脂交换容量对其选择性的影响。结果表明该类树脂对Ａｇ＋的选择性明显高于普通阳树脂。
A new kind of cation exchange resins with high cross-linking degree and low exchange capacity was synthesized by the Friedel-Crafts post-cross-linking reaction of the chloromethylated beads copolymerized by styrene and divinylbenzene and sulphonated reaction.The effect of their exchanging capacity on selectivity and their selectivites for Ag + and other polyvalent cations were studied.Results showed that its selectivity for Ag + is dviously higher than that of general cation exchange resins.
基金
吸附分离功能高分材料国家重点实验室开放基金
关键词
阳离子交换树脂
逆常规选择性
选择性
合成
cation exchange resins,anomalous selectivity,synthesis and property
