INFRARED SPECTRAL STRUCTURAL INVESTIGATION OF THE HEAT-TREATMENT OF TETRAMETHOXYSILANE DIETHOXYDIMETHYLSILANE-DERIVED GELS

被引：2

作者：

CAPOZZI, CA

CONDRATE, RA

PYE, LD

HAPANOWICZ, RP

机构：

[1] Institute of Glass Science and Engineering, NYS College of Ceramics at Alfred University, Alfred

来源：

SPECTROSCOPY LETTERS | 1993年 / 26卷 / 07期

关键词：

GELS; METHYL-MODIFIED SILICATES; HEAT TREATMENT INFRARED SPECTRA; STRUCTURE;

D O I：

10.1080/00387019308011613

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Structural changes occurring during the heat treatment of gels that were prepared from binary tetramethoxysilane (TMOS)/diethoxydimethylsilane (DEDMS) mixtures were investigated using infrared spectra. Analysis of the spectral data indicated that the Si-O networks of the heat-treated gels increased their connectivity with increased dehydration due to increased treatment temperature or time. Four- and three-membered (Si-O)n rings were noted for appropriate heat-treated gel compositions. At higher heat-treatment temperatures, methyl groups were removed from the gel network.

引用

页码：1335 / 1348

页数：14

共 10 条

[1] INFRARED STUDY OF SURFACE MODES ON SILICA [J].