Karmakar, Basudeb and De, Goutam and Kundu, Debtosh and Ganguli, Debyendu (1991) Silica microspheres from the system tetraethyl orthosilicate acetic-acid water. Journal of Non-Crystalline Solids, 135 (1). pp. 29-36. ISSN 0022-3093

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Dense silica microspheres (density 2.11-2.16 g cm-3) were obtained from a range of molar compositions tetraethyl orthosilicate (TEOS):CH3COOH:H2O = 1 :(0.5-4.0):(1.5-5.0), FTIR spectroscopic studies of the reaction between TEOS and CH3COOH in the presence and absence of water showed that acetic acid readily attacked TEOS and generated Si-OH groups via the formation of Si-OOCCH3 groups; (OH)-(OH) condensation finally led to the formation of silica particles.

Item Type: Article
Subjects: Engineering Materials
Divisions: Sol Gel
Depositing User: Bidhan Chaudhuri
Date Deposited: 12 Mar 2015 11:26
Last Modified: 17 Mar 2015 10:29
URI: http://cgcri.csircentral.net/id/eprint/2725

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