Amphiphilic ABC Triblock Terpolymer Templating for Mesoporous Silica  

作　　者：WANG Huan YAO Yuan HAN Lu CHE Shun' ai 

机构地区：[1]State Key Laboratory of Metal Matrix Composites, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, P. R. China

出　　处：《Chemical Research in Chinese Universities》2014年第5期863-867,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Basic Research Program of China（No.2013CB934101）, the National Natural Science Foundation of China（Nos.21201120, 21101106）, the Youth Natural Science Foundation of Shanghai City, China（No.12ZR1445100）, the ＂Chenguang＂ Program of the Shanghai Educational Development Foundation, China（No.12CG10） and the Fund from Evonik Industries.

摘　　要：Self-assembled triblock terpolymers have attracted intense attention in recent years because of their abundant variety of assembly mesostructure. We reported the synthesis of mesoporous silica materials with the am- phiphilic ABC triblock terpolymer polyethylene-poly（ethylene oxide）-polycaprolactone（PE-PEO-PCL） as a template and tetraethoxysilane（TEOS） as a silica source. Increasing the hydrophilic head group（PEO） led to the decrease of packing parameter g, which gave rise to the mesophase transformation from a cylindrical two-dimensional hexagonal P6mm structure to a cage-type face centered cubic closed-packing mesostructure. This new templating route provided a new insight into the template factor governed inorganic-organic self-assembly mesophases.Self-assembled triblock terpolymers have attracted intense attention in recent years because of their abundant variety of assembly mesostructure. We reported the synthesis of mesoporous silica materials with the am- phiphilic ABC triblock terpolymer polyethylene-poly（ethylene oxide）-polycaprolactone（PE-PEO-PCL） as a template and tetraethoxysilane（TEOS） as a silica source. Increasing the hydrophilic head group（PEO） led to the decrease of packing parameter g, which gave rise to the mesophase transformation from a cylindrical two-dimensional hexagonal P6mm structure to a cage-type face centered cubic closed-packing mesostructure. This new templating route provided a new insight into the template factor governed inorganic-organic self-assembly mesophases.

关 键 词：Amphiphilic triblock terpolymer SELF-ASSEMBLY Mesoporous material Silica 

分 类 号：TQ127.2[化学工程—无机化工] O613.72[理学—无机化学]