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A Raman Spectroscopic Study of the Initial Stages of Hydrolysis Oftetraethoxysilane

Published online by Cambridge University Press:  25 February 2011

J. D. Barrie  and
K. A. Aitchison
J. D. Barrie
Affiliation:
The Aerospace Corporation, M2/248, P. O. Box 92957, Los Angeles, CA 90009.
K. A. Aitchison
Affiliation:
The Aerospace Corporation, M2/248, P. O. Box 92957, Los Angeles, CA 90009.
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Abstract

Multichannel detection Raman spectroscopy was used to follow the hydrolysis and condensation reactions of TEOS/ethanol solutions. Effects of alkoxide concentration, catalyst concentration, watenTEOS ratios, and temperature were studied. It was found that the initial oligomeric composition of hydrolyzed solution was dependent upon the amount of water added to the solution: not only did reaction rates differ, but so to did the reaction products. Higher water concentrations resulted in formation of an oligomer which may contain a trisiloxane ring.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 271: Symposium N – Better Ceramics Through Chemistry V , 1992 , 225
Copyright
Copyright © Materials Research Society 1992

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References

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