Sol-gel synthesis and investigation of hybrid organic-inorganic borosilicate nanocomposites

被引：18
|
作者：
Tsvetkova, IN
Shilova, OA
Shilov, VV
Shaulov, AY
Gomza, YP
Khashkovskii, SV
机构：
[1] Russian Acad Sci, Grebenshikov Inst Silicate Chem, St Petersburg 199155, Russia
[2] Natl Acad Sci Ukraine, Inst Chem Macromol Cpds, UA-02160 Kiev, Ukraine
[3] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia
来源：
GLASS PHYSICS AND CHEMISTRY | 2006年 / 32卷 / 02期
关键词：
Spectroscopy; Physical Chemistry; Oligomer; Thermal Analysis; Borate;
D O I：
10.1134/S1087659606020155
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：
Borosilicate sols based on tetraethoxysilane and boric acid (or trimethyl borate) are synthesized. It is demonstrated that the introduction of organic oligomers into borosilicate sols changes the gelation kinetics, affects the composition and structure of the prepared nanocomposites, and makes it possible to produce so-called ormoborosils. Ultrasonic treatment has a strong effect on the gelation kinetics in borosilicate sols, the characteristics of the sol-gel system, and the structure and composition of the borosilicate composites. The phase composition of the synthesized xerogels is investigated by thermal analysis, and the chemical composition is studied by IR spectroscopy. The inference is made that the sol-gel synthesis of borosilicate nanocomposites leads to the formation of multilevel fractally aggregated nanocomposites.
引用
收藏
页码：218 / 227
页数：10
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