Issue 12, 2004
From the journal:

Journal of Materials Chemistry

Influence of functional organic groups on the structure of CTAB templated organosilica thin films

A. Gibaud,a   J.-F. Bardeau,a   M. Dutreilh-Colas,a   M. Bellour,a   V. V. Balasubramanian,a   A. Robert,b   A. Mehdi,c   C. Reyéc  and  R. J. Corriuc  

a Laboratoire de Physique de l'Etat Condensé, Université du Maine, UMR 6087 CNRS, Le Mans Cedex 09, France

b ESRF, BP-220, Grenoble Cedex, France

c Laboratoire de Chimie Moléculaire et Organisation du Solide, UMR 5637 CNRS, Université de Montpellier II, Place E., Bataillon, Montpellier Cedex 5, France

Abstract

Highly ordered mesoporous organosilica thin films containing functional organic terminal groups covalently bonded to the silica matrix were synthesized by co-condensation of tetraethylorthosilicate (TEOS) and organotriethoxysilane RSi(OEt)3 (R = Cl(CH2)3, CN(CH2)3) in the presence of cetyltrimethylammonium bromide (CTAB) as structure directing agent under acidic conditions. The influence of the nature and concentration of these organic groups on the structure of the thin films is evidenced by Grazing Incidence Small Angle Scattering (GISAXS) and X-ray reflectivity. We show that the introduction of chloropropyl groups strongly affects the structure of these films while cyanopropyl groups weakly perturb it. In the case of the chloropropyl groups, the presence of trans and gauche conformers in the films is clearly evidenced by using micro-Raman spectrometry. Their effects on the phase behaviour versus the concentration are discussed.

Graphical abstract: Influence of functional organic groups on the structure of CTAB templated organosilica thin films

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Article information

DOI
https://doi.org/10.1039/B401869A
Article type
Paper
Submitted
09 Feb 2004
Accepted
25 Mar 2004
First published
10 May 2004

J. Mater. Chem., 2004,14, 1854-1860

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Influence of functional organic groups on the structure of CTAB templated organosilica thin films

A. Gibaud, J.-F. Bardeau, M. Dutreilh-Colas, M. Bellour, V. V. Balasubramanian, A. Robert, A. Mehdi, C. Reyé and R. J. Corriu, J. Mater. Chem., 2004, 14, 1854 DOI: 10.1039/B401869A

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