Solid-state 29Si NMR of TEOS-based multifunctional sol-gel materials
作者： Raymond H. Glaser , Garth L. Wilkes , Charles E. Bronnimann
DOI: 10.1016/0022-3093(89)90320-7
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摘要: Abstract Solid-state 29 Si NMR experiments were carried out on multifunctional TEOS-based sol-gel materials to determine the types of silicate structures formed as well degree reaction attained under previously established acid-catalyzed conditions. The and final functionality gels found correlate with a flexible/brittle transition which was observed be function gel composition. Both FT/MAS CP/MAS conducted allowed comparison two methods in terms their quantitative results. It that experiment run proper conditions provides (with exception pure TEOS gels) quantitatively similar spectra those obtained by experiments.
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