NUCLEAR-MAGNETIC-RESONANCE STUDIES OF THE HYDROLYSIS AND MOLECULAR-MOTION OF AMINOPROPYLSILANE

被引：29

作者：

KANG, HJ ^{[1
]}

MEESIRI, W ^{[1
]}

BLUM, FD ^{[1
]}

机构：

[1] UNIV MISSOURI,MAT RES CTR,ROLLA,MO 65401

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1990年 / 126卷

关键词：

D O I：

10.1016/0921-5093(90)90132-M

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The hydrolysis and dynamics of silane coupling agents have been probed using nuclear magnetic resonance (NMR) spectroscopy. The hydrolysis of γ-aminopropyltrimethoxysilane and γ-aminopropyltriethoxysilane were studied using proton NMR spectroscopy. The rates of hydrolysis were dependent on the water and silane coupling agent concentration as well as their chemical nature. The methoxy-substituted silane hydrolyzed much faster than the ethoxy-substituted one. The molecular motion of γ-aminopropylsilane-d2 immobilized on a silica surface and as the bulk polymerized siloxane were characterized by 2H solid-echo NMR techniques. It was found that the motion of the silane coupling agent on silica was more restricted than in the condensed polymer. Deuterium oxide exchange experiments also showed that the motion of deuterons on the amino group is much faster than those of the deuterons on the methylene group in silane coupling agents. © 1990.

引用

页码：265 / 270

页数：6

共 21 条

[1]

BLUM FD, 1988, INTERFACES POLYM CER, P205

[2]

BLUM FD, IN PRESS SOLID STATE

[3] FOURIER-TRANSFORM INFRARED SPECTROSCOPIC STUDY OF THE ADSORPTION OF MULTIPLE AMINO SILANE COUPLING AGENTS ON GLASS SURFACES [J].