以硫醚为主链的螯合树脂研究Ⅳ.含硫代硫酸根、叠氮基树脂的合成及吸附性能
Study On Chelate Resins Containing
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摘要: 聚环硫氯丙烷或环硫氯丙烷与环氧氯丙烷共聚物,在少量二乙烯三胺存在下制得交联预聚物,将交联预聚物分别与硫代硫酸钠,叠氮化钠反应,制得四种侧链带有硫代硫酸根或叠氮基的新型螯合树脂。它们对贵金属离子具有较高的吸附容量和较好的吸附选择性。Abstract: Chelate resins (CST, CEST, CSA,CEST) bearing thiosulfate or azide groups,were first synthesized by the reaction of polychloromethylthiirane (PCMT) or the copolymer of chloromethylthiirane and epichlorohydrin (PCMT ECH) with sodium thios