A Sol-Gel Synthesis for Thermally Stable Aniline/Silica Material

被引：0
|
作者：
Flávio A. Pavan
Sheila Leal
Tania M.H. Costa
Edilson V. Benvenutti
Yoshitaka Gushikem
机构：
[1] UFRGS,LSS, Instituto de Química
[2] Unicamp,Instituto de Química
来源：
Journal of Sol-Gel Science and Technology | 2002年 / 23卷
关键词：
organofunctionalized silica; infrared; aniline; thermal stability; base activator;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Aniline/silica sol-gel material was obtained. The aniline was immobilized on the silica surface using chloropropyltrimethoxysilane as bridge reagent. The base activator NaH was used to produce a fast SN2 reaction between the base and the alkylorganosilane. The resulting modified silica was characterized by elemental analysis and infrared spectroscopy using an oven cell. The organic coverage on the surface was proportional to the organic precursor concentration. The aniline/silica materials are thermally stable up to 300°C, in high vacuum.
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页码：129 / 133
页数：4
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