Synthesis and structural identification of a highly ordered mesoporous organosilica with large cagelike pores
Zhao, Lan × Zhu, Guangshan Zhang, Daliang Di, Yan Chen, Yue Terasaki, Osamu Qiu, Shilun #
American Chemical Society
Journal of Physical Chemistry B vol:109 issue:2 pages:764-768
Using 1,2-bis(trimethoxysilyl)ethane as organosiloxane precursor and a triblock copolymer surfactant, Pluronic F127, as template, a highly ordered mesoporous organosilica with large cagelike pores has been successfully synthesized. Its structure was resolved to be 3-D cubic Fm (3) over barm by high-resolution transmission electron microscopy. The intergrowth of hexagonal close-packed and cubic close-packed phases was observed in this material. The effect of different siliceous precursors on the mesostructure was also investigated.