壳聚糖镍和壳聚糖镧配位聚合物的配位数研究

摘要: 从ＩＲ、ＥＳＲ和ＸＰＳ的测试结果可知，Ｎｉ＾２＋或Ｌａ＾３＋与壳聚糖（ＣＳ）键节单元上的氨基Ｎ和仲羟基Ｏ发生配位反应，形成ＣＳ－Ｎｉ＾２＋或ＣＳ－Ｌａ＾３＋配位聚合物膜。通过电导率研究其配位数，发现Ｎｉ＾２＋或Ｌａ＾３＋可与壳聚糖的３个或５个键节单元配位。根据以上的实验可推定中心离子Ｎｉ＾２＋与壳聚糖３个键节单元上的氨基Ｎ和仲羟基Ｏ结合，形成六配位的ＣＳ－Ｎｉ配位聚合物Ｌａ＾３＋与壳聚糖５个键节单

Abstract: The coordination effect of chitosan with Ni 2+ was studied by IR, ESR, XPS and specific conductivity. It was comfirmed that the CS Ni 2+ coordinaticn polymer is high spin and there are six coordination bonds of three N and three O ligands fro