壳聚糖交联膜结构及性能的研究

壳聚糖是一种天然生物高分子聚合物，是甲壳素脱乙酰化产物，具有很好的成膜特性．用一种金属离子把壳聚糖分子中的螫合基团络合保护后，用戊二醛交联，并在酸性条件下将该金属离子洗脱，得到了螯合基团依然保留的壳聚糖交联膜．对壳聚糖交联膜的结构及性能进行了研究．结果表明：金属离子有效地保护了壳聚糖分子上的络合基因，该膜的性能较好，对阴离子的选择透过性比较好，并将其应用于元素的分离．

The Research on Structure and Property of Chitosan Linking Membrane

Chitosan is a natural high polymer and it has the characteristic forming the mem- brane.A kind of chitose linking membrane was studied in this paper.The research contoins:preparation of membrane,structure of membrane,characteristic of membrane and the use of it.The result shows at The membrane prepared is anion exchange membrane and its chang-ing group is anion-group.The membrane is used to separate Sc3+ other ions with electro-dialysis.