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On-Line Spectroscopic Studies of Group IV Alkoxides and their Interactions with Organic Additives During the Sol-Gel Process

Published online by Cambridge University Press:  10 February 2011

D. Wettling ,
S. Truchet ,
J. Guilment  and
O. Poncelet
D. Wettling
Affiliation:
Kodak European Research Division, Laboratoire d'Analyses, Chalon/Saone, 71102 France
S. Truchet
Affiliation:
Kodak European Research Division, Laboratoire d'Analyses, Chalon/Saone, 71102 France
J. Guilment
Affiliation:
Kodak European Research Division, Laboratoire d'Analyses, Chalon/Saone, 71102 France
O. Poncelet
Affiliation:
Kodak European Research Division, Laboratoire d'Analyses, Chalon/Saone, 71102 France
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Abstract

The potential of vibrational spectroscopy for the study of group IV alkoxides M(OR)4 has been demonstrated in several papers, but only a few of these papers have presented results from on line measurements. The monitoring of different reactions such as the stabilization of the alkoxides with organic additives, the exchange processes between different metal alkoxides (R exchange or M exchange) and the hydrolysis process can be of great importance for the development of new synthetic routes leading to materials which are easier to process. NIR spectroscopy is a very versatile technique but lacks of specificity while IR and Raman give more interpretative results but are not always easy during processing. We used both techniques along with chemometric tools to extract relevant information on our processes. The 2D correlation allowed us to benefit from the specificity of IR and Raman to develop robust NIR methods which are able to be used on line to monitor the different steps of the sol-gel process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 435: Symposium V – Better Ceramics Through Chemistry VII , 1996 , 375
Copyright
Copyright © Materials Research Society 1996

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