摘要
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。
The sol-gel organic-inorganic hybrid xerogel with superior porosity was prepared through an uncomplicated method using tetraethylorthosilicate（TEOS） and poly（methylhydrogen） siloxane（PMHS） as framework precursor.Meanwhile,a novel hybrid product was thoroughly characterized by advanced techniques such as solid state 29Si magic angle spinning nuclear magnetic resonance spectroscopy,field emission scanning electron microscopy,high resolution transmission electron microscopy,low temperature N2-adsorption-desorption isotherms,thermogravimetric analysis,and Fourier transform infrared spectrophotometry.Characterization results show that synthesized hybrid xerogel possesses a wormhole framework structure with uniform pore size,a highly specific surface area of 780 m2/g and a pore volume of 0.64 cm3/g.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2010年第12期2335-2339,共5页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(20901012)
辽宁省教育厅科技攻关(202073414)资助项目
关键词
杂化材料
合成
含氢硅烷
正硅酸乙酯
hybrid material
synthesis
poly（methylhydrogen） siloxane
tetraethylorthosilicate
