Epoxidation of styrene catalyzed by mesoporous propylthiol group-functionalized silica supported manganese(III) salen complexes with different pore morphologies
作者： Ling Ma , Fang Su , Wan Guo , Shengqu Zhang , Yihang Guo
DOI: 10.1016/J.MICROMESO.2012.10.013
关键词: Hybrid material 、 Reagent 、 Inorganic chemistry 、 Tetraethyl orthosilicate 、 Mesoporous material 、 Chemistry 、 Styrene 、 Physisorption 、 Polymer chemistry 、 Manganese 、 Catalysis
摘要: Abstract Mesoporous propylthiol group-functionalized silica supported manganese(III)-salen complexes with 2D hexagonal p6mm and 3D interconnected sponge-like structures were prepared by a multistep grafting method using tetraethyl orthosilicate (TEOS) or 1,2-bis(trimethoxysilyl)ethane (BTMSE) as source 3-mercaptopropyltriethoxysilane (MPTES) linker reagent. The structure, morphology, porosity of the resulting hybrid materials well-characterized spectroscopy method, X-ray diffraction analysis, transmission electron microscopy, nitrogen physisorption measurement. Subsequently, their oxidation catalytic activity stability evaluated through epoxidation styrene aqueous NaClO oxygen source, influences sulfur atom in materials, textural properties pore morphologies kinds substituents diimine bridges on discussed.
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