羧甲基壳聚糖的合成和光谱研究

Synthesis of Carboxymethyl Chitosan and Its Spectrum Analysis

本文以壳聚糖为原料制备了 N,O-羧甲基壳聚糖 ,以 IR、1 H NMR及 1 3C NMR进行了结构表征。结果表明 ,取代度大小顺序为 :OH- 6 >OH- 3>- NH2 。

N,O carboxymethyl chitosan(CM chitosan) was synthesized using treating chitosan as raw material,and characterized by IR, 1H and 13 C NMR spectra.The results indicate that the degree of substitution is in the order of OH 6>OH 3>-NH 2,and CM chitosan has a strong absorption for heavy metal ion.