Issue 47, 2005

Photoacid catalyzed sol–gel process

Abstract

The hydrolysis of compounds containing alkoxysilyl moieties catalysed by UV-generated protic acids, followed by condensation of in situ generated silanol groups, is proposed as an effective approach to formation of hard, silicate-type materials by a sol–gel process. It gives highly thermally stable materials which can be of value as precursors to silicon oxycarbide films. The effectiveness of the photocatalyst used in the process depends on the type of anion and seems to be limited, in some cases, by Si–F bond formation.

Graphical abstract: Photoacid catalyzed sol–gel process

Supplementary files

Article information

Article type
Paper
Submitted
10 Jul 2005
Accepted
15 Sep 2005
First published
07 Oct 2005

J. Mater. Chem., 2005,15, 4997-5006

Photoacid catalyzed sol–gel process

A. Kowalewska, J. Mater. Chem., 2005, 15, 4997 DOI: 10.1039/B508212A

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