甲壳胺与SiO_2杂化材料膜制备的研究

The Preparation and Study of Chitosan SiO 2 Composite Film

将甲壳质在碱液中进行脱乙酰化反应，制得不同脱乙酰度、粘度的甲壳胺；制成的甲壳胺溶液与ＴＥＯＳ溶胶进行凝胶化反应，得到一种杂化材料；通过红外光谱检测和物理性质观测，发现反应温度、时间、体系的酸度对反应产物有影响，部分产物出现Ｓｉ—Ｏ—Ｃ键；凝胶化所得膜不溶解于水．

The chitosan is obtained from the chitin and mixed with TEOS in various temperature and pH conditions.IR results show that Si—O—C bond exists in some chitosanSiO 2 materials formed in lower temperature and pH value. The films of the materials are observed. Comparing with the film of chitosan,some of these can not be dissolved in thin acid solution.