Chemistry of mixtures of bis-[trimethoxysilylpropyl]amine and vinyltriacetoxysilane: an NMR analysis

被引：22

作者：

Metroke, Tammy ^{[2
]}

Wang, Yimin ^{[1
]}

van Ooij, Wim J. ^{[1
]}

Schaefer, Dale W. ^{[1
]}

机构：

[1] Univ Cincinnati, Dept Chem & Mat Engn, Cincinnati, OH 45221 USA

[2] Oklahoma State Univ, Dept Chem, Stillwater, OK 74078 USA

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2009年 / 51卷 / 01期

关键词：

Silane stability; NMR; Bis-silane; Dilution; SILANE COUPLING AGENT; MODIFIED SILICA SOLS; CORROSION PROTECTION; AA; 2024-T3; SI-29; NMR; CONDENSATION; SPECTROSCOPY; HYDROLYSIS; BEHAVIOR; METALS;

D O I：

10.1007/s10971-009-1927-0

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

C-13, Si-29, and H-1 NMR were used to investigate the interaction of bis-[trimethoxysilylpropyl]amine (silane A) with vinyltriacetoxysilane (silane V). The reaction was found to generate a hydroxylamine, an amide and a silanol. A series of hydrolysis and condensation reactions were found to occur concurrently with the formation of the major reaction products. Upon dilution with acidified water, the amide decomposes, initiating hydrolysis of unreacted silanes. Hydrogen bonding between the N-H and SiOH groups is likely to be responsible for the stability of the dilute solutions.

引用

页码：23 / 31

页数：9

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