A silicon-29 NMR study of the structural intermediates in low pH sol-gel reactions

Autor: N. J. Armstrong, L. W. Kelts
Rok vydání: 1989
Předmět:
Zdroj: Journal of Materials Research. 4:423-433
ISSN: 2044-5326
0884-2914
DOI: 10.1557/jmr.1989.0423
Popis: 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.
Databáze: OpenAIRE