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Issue 5, 2013
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Mesostructured fatty acid-tethered silicas: sustaining the order by co-templating with bulky precursors

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Abstract

The co-condensation of functional alkoxysilanes with tetraethoxysilane in the presence of a structure directing agent under sol–gel process chemistry is a common way to access functional organosilica with an ordered mesostructure. In this report, bulky silylated fatty acid methyl esters were used both as co-templating bio-molecules and functionalizing agents in the process of supra-molecular silica mineralization. The highest structural regularity in terms of pore size distribution and channel size homogeneity was observed for carboxy-tethered silica possessing SBA-15-type architecture due to an enhanced fatty acid precursor–surfactant interaction. The carboxylic surface embedded within the hydrophobic environment of the fatty compounds confers to these materials interesting reactive-surface properties with promising applications as drug-delivery systems and bio-catalytic nanoreactors.

Graphical abstract: Mesostructured fatty acid-tethered silicas: sustaining the order by co-templating with bulky precursors

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Publication details

The article was received on 11 Aug 2012, accepted on 22 Oct 2012 and first published on 23 Oct 2012


Article type: Paper
DOI: 10.1039/C2DT31835K
Citation: Dalton Trans., 2013,42, 1591-1602
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    Mesostructured fatty acid-tethered silicas: sustaining the order by co-templating with bulky precursors

    A. El Kadib, N. Katir, A. Finiels, A. Castel, N. Marcotte, K. Molvinger, C. Biolley, P. Gaveau, M. Bousmina and D. Brunel, Dalton Trans., 2013, 42, 1591
    DOI: 10.1039/C2DT31835K

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