PMMA/TiO_2-SiO_2高分子杂化材料的制备与表征  

Preparation and Characterization of PMMA/TiO_2-SiO_2 Hybrid Materials

作　　者：李玉[1] 于文志[1] 韩兆让[1] 刘春丽[1] 余娜[1] 崔琳琳[1] 

机构地区：[1]吉林大学化学学院,吉林长春130023

出　　处：《高分子材料科学与工程》2008年第11期161-164,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(20274014).

摘　　要：用溶胶凝胶法和共混法相结合的方法制备了PMMA/TiO2-SiO2高分子杂化材料。并用傅里叶红外光谱(FT-IR)、原子力显微镜(AFM)和透射电镜(TEM)等测试方法对所得复合微粒进行了表征。结果表明,TiO2-SiO2复合粒子呈核-壳结构,具有Ti-O-Si网络;该核壳结构可均匀地分散在聚甲基丙烯酸甲酯中,形成PMMA/TiO2-SiO2高分子杂化材料。与纯的聚合物材料相比,PMMA/TiO2-SiO2高分子杂化材料有较好的热稳定性、优良的紫外屏蔽和可见光透过特性。PMMA/-TiO2-SiO2 hybrid materials were prepared via sol-gel and blending method. The hybrid materials were characterized using TEM, FT-IR, AFM, the colloidal TiO2-SiO2 is core-shell construct, and has Ti - O - Si nets. The core-shell particles can be homogeneously dispersed in the PMMA, and forrried PMMA/TiO2-SiO2 hybrid materials. The hybrid materials exhibite better thermal stability, shielding ultraviolet and photocatalytic activity than the pure PMMA.

关 键 词：TIO2-SIO2 聚甲基丙烯酸甲酯 杂化材料 

分 类 号：TQ314.257[化学工程—高聚物工业]