Abstract
Silicon-29 NMR is used to study the structural intermediates in tetramethyl and tetraethyl orthosilicate (TMOS and TEOS) low pH sol-gel reactions. Differences in the number of compact ring structures are related to differences in gel times. Reactions are followed at various silicon: water: acid molar ratios.
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Kelts, L.W., Armstrong, N.J. A silicon-29 NMR study of the structural intermediates in low pH sol-gel reactions. Journal of Materials Research 4, 423–433 (1989). https://doi.org/10.1557/JMR.1989.0423
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DOI: https://doi.org/10.1557/JMR.1989.0423