title: Preparation of mesoporous silica nanoflakes and nanospheres with perpendicular pore channels.
abstract: Silica nanoflakes and nanospheres with perpendicular pore channels are attractive due to their potential applications. Herein, the nanoflakes were prepared using the self-assemblies of a chiral low-molecular-weight amphiphile, L-18Ala4PyBr, as the templates; and nanospheres were prepared using this amphiphile and cyclohexane as a co-structure-directing agent. By gradually increasing the bridging alkylene chain length of L-18Ala4PyBr, amphiphiles L-18Ala6PyBr and L-18Ala11PyBr were synthesized. Nanoflakes with perpendicular pore channels and nanoworms with horizontal pore channels were prepared using L-18Ala6PyBr and L-18Ala11PyBr, respectively. The hydrophobic association of the bridging alkylene chains should play an important role in controlling the morphologies and pore architectures of the mesoporous silicas.
authors: Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China.
authors: Limin
authors: L
authors: Wu
authors: Yuliang
authors: Y
authors: Shan
authors: Yuxia
authors: Y
authors: Chen
authors: Yuanli
authors: Y
authors: Chen
authors: Yi
authors: Y
authors: Li
authors: Baozong
authors: B
authors: Li
authors: Yonggang
authors: Y
authors: Yang