Phenyl-functionalised mesoporous silica films

Reference:

O'Driscoll, B. M. D., Hawley, A. M., Roser, S. J. and Edler, K. J., 2008. Phenyl-functionalised mesoporous silica films. Rare Metal Materials and Engineering, 37, pp. 1-7.

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Abstract

Spontaneously forming phenyl-functionalised mesoporous silica films were produced using a co-condensation method. The films were examined using neutron reflectometry and Brewster angle microscopy, and the micelles in solution were examined with small angle neutron scattering. The reflectometry results indicated a loss of structure in the films with increasing amounts of the phenyl-functionalised precursor. This change was accompanied by a formation of non-aggregated bilayer type structures in solution. At higher phenyl content these bilayers appear to be stabilized by a tilting of the surfactant alkyl chains. These results are in contrast with the phenyl-free system, which produced films containing cylindrical micelles.

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