溶胶-凝胶法制备壳聚糖/SiO_2杂化材料

Preparation of Chitosan/SiO_2 Hybrid Polymer Material via sol-gel Process

以正丁酐 ( Butyric anhydride)、壳聚糖 ( Chitosan)、甲基丙烯酰氧基丙基三甲氧基硅烷 ( MPTMS)、正硅酸乙酯 ( TEOS)为原料 ,采用迈克尔加成反应合成了丁酰壳聚糖 -MPTMS,配合酸催化 sol-gel过程 ,制备了透明的壳聚糖 /Si O2 杂化材料 .FTIR表征了杂化材料的结构 .TGA,SEM以及力学性能测试结果表明 ,杂化材料的成型工艺对材料的表面形貌。

By use of chitosan, butyryric anhydride, methacryloxypropyl trimethyl\|oxysilane(MPTMS), tetraethyloxysilane(TEOS), firstly butyrylchitosan\|MPTMS was synthesized by Michael addition reaction, and then went on acid catalysizing sol\|gel process, lastly transparent butyrylchitosan/SiO\-2 hybrid polymer materials were prepared. FTIR was used to characterize the structure. The results of SEM, TGA and Test of Mechanical Properties indicate that the preparation techniques have great effect on surface topography, thermal degradation temperature and mechanical properties of hybrid polymer materials.