Gel to glass transformation of methyltriethoxysilane: A silicon oxycarbide glass precursor investigated using vibrational spectroscopy

Chomel, Arnold Desmartin, Dempsey, Philip, Latournerie, Jerôme, Hourlier-Bahloul, Djamila and Jayasooriya, Upali A. (2005) Gel to glass transformation of methyltriethoxysilane: A silicon oxycarbide glass precursor investigated using vibrational spectroscopy. Chemistry of Materials, 17 (17). pp. 4468-4473.

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Abstract

Gel to glass transformation of methyltriethoxysilane was investigated using infrared and Raman spectroscopies. The vibrational frequencies of the Si-O network are found to be a sensitive probe of the gel to glass transformation, which is measured to be at ca. 950 degrees C for this system, under the experimental conditions used for the synthesis. Vibrational data are also compatible with an earlier suggestion of the presence of polyhedral silsesquioxanes type structures embedded in a 3-D network. Further evidence is presented for the formation of Si-CH2-Si and Si-C2H4-Si units during the pyrolysis process.

Item Type: Article
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Rachel Smith
Date Deposited: 09 May 2011 12:41
Last Modified: 21 Apr 2020 20:00
URI: https://ueaeprints.uea.ac.uk/id/eprint/29799
DOI: 10.1021/cm050501p

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