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脱水聚乙烯醇纤维在乙酸—乙酸酐介质中与巯基乙酸反应形成一种新的螯合吸附剂—巯基聚乙烯醇纤维。本文介绍了其合成方法和它与某些金属离子的作用;测出其对两价重金属离子的螯合容量为～0.25mmol.g~(-1),将其用于痕量重金属离子的富集,得到了良好的结果。
Dehydrated polyvinyl alcohol fibers react with thioglycolic acid in the acetic acid-acetic anhydride medium to form a new chelating adsorbent-mercapto-polyvinyl alcohol fiber. In this paper, the synthesis method and its interaction with some metal ions are introduced. The chelating capacity of the heavy metal ions is ~ 0.25mmol.g ~ (-1), which is used to enrich the trace heavy metal ions Set, got good results.