Abstract
Mesoporous phenylene–silica materials with three-dimensional-cage structures were synthesized from a phenylene-bridged disilane precursor [(EtO) 3–Si–C 6H 4–Si–(OEt) 3] using various surfactants. Compared to 1D-channel type materials, the 3D-cage mesoporous materials have an advantage of easy access and diffusion of molecules inside the pores. The materials obtained using hexadecyltrimethylammonium bromide (C 16TMA +Br −) or hexadecylpyridinium chloride (C 16Py +Cl −) show spherical morphology with a 3D-cage pore architecture and cubic symmetry. The use of triblock copolymer F88 [(EO) 100–(PO) 39–(EO) 100] resulted in a 3D-cage type mesoporous material with microporosity in the pore walls. All the materials have high thermal stability of up to 773 K.
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