壳聚糖─Cu（Ⅱ）配位聚合物的合成、表征及催化性能研究

Study on Synthesis, Characterization and Catalytic Property of the Chitosan-Cu(Ⅱ) Coordination Polymer

采用一种新方法合成了壳聚糖与ＣＵ（Ⅱ）的配位聚合物，并用ＩＲ、ＥＳＲ、ＵＶ—ＶＩＳ、ＤＴＡ—ＴＧ和ＸＰＳ分析手段对配位聚合物进行表征．同时还研究了壳聚糖－ＣＵ（Ⅱ）配位聚合物与Ｎａ２ＳＯ３体系对ＭＭＡ聚合的催化性能，证实ＭＭＡ的聚合机理是按自由基机理进行的．

This paper presented a new formation method of chitosan--Cu(Ⅱ) coordination polymer by cupric ammine solution impregnation. The coordination of Cu(Ⅱ) by chitosan membrane was characterized by IR, ESR, UV--Vis, DTA--TG and XPS. In addition, the polymerization of MMA can be catalyzed by the chitosan--Cu (Ⅱ ) coordinanon polymer at room temperature in the presence of Na2SO3 aqueous solution. The free radical polymerization mechanism of MMA polymerization is put forward.