【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.更多还原

【Abstract】 Vinyl-functionalized MSU-X silicates were prepared by one-pot synthesis methodology at the presence of Tx-15 and AEO9 surfactants respectively. The solids were characterized by XRD, FT-IR, 29Si MASNMR, HRTEM, SEM, N2 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 AEO9 was of 3. 1nm 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 ~ 46 nm.更多还原