乙烯基官能化MSU-X的合成  

Synthesis of Vinyl-functionalized MSU-X Silicates

作　　者：巩雁军[1] 李志宏[1] 吴东[1] 孙予罕[1] 邓风[2] 罗晴[2] 岳勇[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：《物理化学学报》2002年第6期572-576,共5页Acta Physico-Chimica Sinica

基　　金：山西省自然科学基金(991023);国家目然科学基金(29973057);国家重点基础研究专项基金(G20000480)资助项目

摘　　要：分别在非离子表面活性剂（AEO9或TX-15）的存在下,采用共水解缩聚一步合成了乙烯基官能化MSU-X型中孔分子筛（V-MSU-1,V-MSU-2）,并对其合成过程,材料的结构和表面性质进行了比较研究.乙烯基官能化后,乙烯基团以共价键的方式与SiO2骨架相连并均匀分布于孔道表面,改善了分子筛孔道的疏水性能.不同的模板剂及前驱体中有机官能基的含量对V-MSU-X孔道特征、表面和织构性能有一定的影响.Vinyl-functionalized MSU-X silicates were prepared by one-pot synthesis methodology at the presence of Tx-15 and AEO(9) surfactants respectively. The solids were characterized by XRD, FT-IR, Si-29 MASNMR, HRTEM, SEM, N-2 physisorption techniques. The surface morphology and textural properties of such materials varied with the synthesis mechanism and content of vinyl groups in the channel. The effects of the organic groups on the modified MSU-2 were investigated carefully. The vinyl-modified mesopore with 10% (x) VTES templated by AEO(9) was of 3.1 nm. pore diameter, but that templated by Tx-15 displayed a bimodal mesoporous channels, in which the smaller pore size was about 3 nm, while the bigger one was in the range of 40 similar to 46 nm.

关 键 词：合成 中孔材料 乙烯基官能化MSU-X 中孔分子筛 结构 共水解缩聚 性能 

分 类 号：O643.3[理学—物理化学]