SiO_2-PMMA无机-有机复合材料的制备与结构研究

Preparation and study on structure of organic-inorganic composite SiO_2-PMMA by sol-gel method

应用溶胶 凝胶技术 ,采用预掺杂的方法 ,制备了SiO2 PMMA无机 有机复合材料 (ORMOSILS)。应用红外光谱分析、广角X射线衍射、扫描电子显微镜分析、差示扫描分析和热失重分析 ,对SiO2 PMMA无机 有机复合材料 (ORMOSILS)的显微结构进行了研究。结果表明 :这种方法制备的SiO2 PM MA无机 有机复合材料 (ORMOSILS) ,有机物均匀分布在无机物基体中 ,非晶基体SiO2 短程有序畴的大小与一般非晶玻璃短程有序畴的大小基本一致等结论。

Organic-inorganic composite SiO2-PMMA was prepared by sol-gel technology via mixing the solution of MMA. IR, RRD, SEM, DSC, TAG were employed to study the structure of this composite which indicated that non-crystal state appears in the composite. The organic dispersed uniformly in the SiO2 matrix, and the size of domain of the organic-inorganic composite SiO2-PMMA is same as that in amorphous SiO2.