NMR spectroscopic studies of dimethyldiethoxy silane hydrolysis and polysiloxane conversion

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Title:	NMR spectroscopic studies of dimethyldiethoxy silane hydrolysis and polysiloxane conversion
Authors:	Tsai, Ming-fu;Lee, Yu-der;Chen, Kan-nan
Contributors:	淡江大學化學學系
Keywords:	polysiloxane;silane;hydrolysis;NMR
Date:	2002-10-10
Issue Date:	2009-11-04 16:57:26 (UTC+8)
Publisher:	John Wiley & Sons
Abstract:	The hydrolysis rate of alkoxy silane (dimethyldiethoxy silane, DMDES, etc.) is a linear relationship vs. the reaction time under the moisture flux control. The hydrolysis process results in formation of the linear polysiloxane products by a subsequent condensation reaction. An amidized alkoxy silane (3-(2-aminoethyl)aminopropylmethyldimethoxy silane, KLM-602 or -aminopropyl- triethoxy silane, -APS) serves as an internal standard of DMDES hydrolysis kinetics measurements. The hydrolysis kinetics of DMDES with the amidized alkoxy silane and the subsequent linear polysiloxanes conversion have been evaluated and characterized by 29Si- and 13C-NMR NMR spectroscopic measurements.
Relation:	Journal of Applied Polymer Science 86(2), pp.468-477
DOI:	10.1002/app.11009
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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