Influence of boric acid on aging of freshly prepared tetraethoxysilane-based gels

Influence of boric acid on aging of freshly prepared tetraethoxysilane-based gels The technique for kinetic examination of polycondensation of silicon alkoxides, which allows determining the rate of reaction between ammonium molybdate and various associates of silica for systems in which hydrolysis proceeds, was modified to examine similar systems after the gel point. Aging of freshly prepared tetraethoxysilane-based gels was for the first time studied spectrophotometrically as influenced by boric acid additions. The proportions of various molecular species of silica in the examined systems at different times after the gel point were determined in terms of the kinetic model of the molybdate reaction. Russian Journal of Applied Chemistry Springer Journals

Influence of boric acid on aging of freshly prepared tetraethoxysilane-based gels

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SP MAIK Nauka/Interperiodica
Copyright © 2010 by Pleiades Publishing, Ltd.
Chemistry; Industrial Chemistry/Chemical Engineering; Chemistry/Food Science, general
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