Solid state NMR study on the conformatio
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Jinlong Cheng; Matilda Fone; Mark W. Ellsworth
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Article
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1996
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Elsevier Science
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English
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The surface of colloidal silica of 22 nm and 100 nm in diameter has been modified with a silane coupling agent, n-octadecyltriethoxysilane. The solid state 13C NMR spectrum shows surprisingly that the covalently bonded n-octadecyl chains on the silica surface adopt largely extended all-rrans confor