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同时采用正硅酸乙酯(tetraethylorthosilicate,TEOS)和甲基含氢硅烷[poly(methylhydrogen)siloxane,PMHS]作为反应组分[保持质量比m(TEOS)/m(PMHS)=6],通过溶胶-凝胶合成路线制备有机-无机杂化的介孔氧化硅凝胶材料。借助固体硅核磁共振、扫描电子显微镜、高分辨透射电子显微镜、低温氮气吸附/脱附、热分析和Fourier红外光谱等测试手段对杂化凝胶材料进行系统表征。分析结果表明:甲基化凝胶材料呈现“蠕虫状”孔道结构特征,孔径分布均匀,比表面积和孔体积分别为780m2/g和0.64cm3/g。
While using tetraethylorthosilicate (TEOS) and poly (methylhydrogen) siloxane (PMHS) as the reaction components [retention mass ratio m (TEOS) / m (PMHS) = 6] Preparation of Organic - Inorganic Hybrid Mesoporous Silica Gel Materials by Gel Synthesis Route. The hybrid gel materials were systematically characterized by solid-state nuclear magnetic resonance, scanning electron microscopy, high-resolution transmission electron microscopy, cryogenic nitrogen adsorption / desorption, thermal analysis and Fourier transform infrared spectroscopy. The results showed that the methylated gelatinous material exhibited “worm-like” pore structure with uniform pore size distribution, and the specific surface area and pore volume were 780m2 / g and 0.64cm3 / g, respectively.