Abstract

Titania gels have been prepared using a reverse micelle reaction to control the hydrolysis of tetraisopropylorthotitanate. When gels are treated in decane or water, the texture evolves. Three complementary techniques, thermoporometry, dilatometry and electron microscopy, have been used to study the textural evolution. This modification of the texture is likely to be related to the surface tension between the solvent and the backbone, as it is suggested by a new model on wet gels.

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