羟丙基壳聚糖亚铁配合物的合成

Synthesis of complex of O-(hydroxyl isopropyl)chitosan-Fe(II)

采用壳聚糖先与Fe2+配合,再用环氧丙烷改性,研究了羟丙基壳聚糖-Fe2+的合成工艺,并用紫外和红外光谱对衍生物结构进行了表征。结果表明,在壳聚糖用量为0.1g、Fe2+起始浓度为16mg/mL、溶液pH为2的条件下,制得壳聚糖亚铁配合物。接着在壳聚糖-Fe2+∶环氧丙烷∶25%四甲基氢氧化铵为1mg∶10mL∶0.8mL条件下,制得羟丙基壳聚糖-Fe2+(HPCS-Fe2+)。位于1160～1030cm-1处有特征吸收峰,说明衍生化后得到的HPCS和HPCS-Fe2+上两个羟基上都发生了反应。

O （hydroxyl isopropyl） Chitosan Fe（II） was synthesized via 1,2 epoxypropane derived reaction of Fe2＋ with chitosan. The structure of the product was identified by fourier infrared spectrum UV spectrum. The experiment revealed that the product was made with the most superior process condition of 0. 1g chitosan amount,16mg/mL initial concentration of Fe2＋,pH2. The chitosan Fe2＋∶ epoxypropane∶ 25% tetramethylammonium hydroxide were 1mg∶ 10mL∶ 0. 8mL. The characteristic absorption peak was 1160 ~ 1030cm-1,it showed that reaction had been taken place on the two hydroxyl groups of HPCS and HPCS Fe2＋.