硅酸钠与有机硅氧烷前驱体合成有机官能化硅基介孔材料  

Direct Synthesis of Mesoporous Organosilica from Sodium Silicate and Organosiloxane

作　　者：喻宁亚[1] 巩雁军[1] 王树国[1] 吴东[1] 孙予罕[1] 罗晴[2] 刘午阳[2] 邓风[2] 

机构地区：[1]中国科学院山西煤炭化学研究所,煤转化国家重点实验室,太原030001 [2]中国科学院武汉物理与数学研究所,波谱与原子分子物理国家重点实验室,武汉430071

出　　处：《化学学报》2003年第1期58-62,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(No.2 99730 57);国家重点基础研究专项基金(No.2 0 0 0 0 4 80 0 1 )资助项目

摘　　要：采用有机硅氧烷(RTES)与硅酸钠(Na2 SiO3)共水解缩聚合成有机官能化的MSU型硅基介孔材料.当前驱体中RTES和硅酸钠的摩尔比为 0.1∶0.9时合成了R MSU(R =甲基,氨基)分子筛,通过现代分析技术证明有机官能团均进入材料骨架.选用CH3 MSU合成体系,考察了合成温度、前驱体与模板剂摩尔比及前驱体中有机硅氧烷含量等反应参数对材料织构性能的影响,发现通过简单地调节反应参数。Using sodium silicate and organotrialkoxysilane as the silica source and nonionic polyethylene oxide C(11)similar to(15)-H(23)similar to(31) (CH2CH2O)(9)H (AEO(9)) as the structure-directing agent, MSU-type mesoporous organosilica materials that include methyl, 3-aminopropyl group were synthesized. The obtained materials were characterized by XRD, FT-IR, SEM, HRTEM, Si-29 CP MAS NMR, N-2-physisorption and bulk elemental analysis. The effects of synthetic temperature, organotrialkoxysilane content in the precursor and Si/surfactant molar composition in CH3-MSU system were investigated carefully.

关 键 词：硅酸钠 有机硅氧烷 前驱体 合成 硅基介孔材料 介孔分子筛 有机官能化 

分 类 号：TB34[一般工业技术—材料科学与工程]