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Issue 1, 2003
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Synthesis of highly ordered mesoporous hybrid silica from aromatic fluorinated organosilane precursors

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Abstract

Organo-fluorinated mesoporous MCM-41 type silica presenting a high degree of order has been prepared from co-condensation of tetraethoxysilane (TEOS) and pentafluorophenyltriethoxysilane [PFPTES (1)] in the presence of cetyltrimethylammonium bromide as a template. Both basic and acidic routes have been explored. In the presence of an excess of water using fluoro-precursor (1), most of the bound fluoro-organic moieties are cleaved, yielding to pentafluorophenyl doped silica. Higher fluorine content silica-based MCM-41 materials were obtained by using 2-pentafluorophenylethyltriethoxysilane [PFPETES (2)] as the organosilane precursor. In that case, the fluoro-containing groups remain covalently bound to the mesoporous inorganic network, yielding materials with potential hydrophobic, adsorbing and optical properties.

Graphical abstract: Synthesis of highly ordered mesoporous hybrid silica from aromatic fluorinated organosilane precursors

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Publication details

The article was received on 11 Jul 2002, accepted on 16 Sep 2002 and first published on 10 Dec 2002


Article type: Paper
DOI: 10.1039/B206924P
Citation: New J. Chem., 2003,27, 166-171
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    Synthesis of highly ordered mesoporous hybrid silica from aromatic fluorinated organosilane precursors

    B. Lebeau, C. Marichal, A. Mirjol, G. J. D. A. A. Soler-Illia, R. Buestrich, M. Popall, L. Mazerolles and C. Sanchez, New J. Chem., 2003, 27, 166
    DOI: 10.1039/B206924P

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