Sol-gel processing of silatranes

被引：35

作者：

Charoenpinijkarn, W

Suwankruhasn, M

Kesapabutr, B

Wongkasemjit, S ^{[1
]}

Jamieson, AM

机构：

[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand

[2] Case Western Reserve Univ, Dept Macromol Sci, Cleveland, OH 44106 USA

来源：

EUROPEAN POLYMER JOURNAL | 2001年 / 37卷 / 07期

关键词：

silica; silatranes; morphology; sol-gel;

D O I：

10.1016/S0014-3057(00)00255-X

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Silatrane complexes are organosilicon compounds synthesized by direct reaction of SiO2 and trialkanolamines. Here, we explore their potential as ceramic precursors via the hydrolytic sol-gel processing method. Viscoelastic analysis is used to characterize the gelation behavior of silatranes based on triisopropanolamine. under different hydrolysis conditions. Pyrolyzed ceramic products are characterized in terms of surface area acid morphology and found to have a homogeneous microporous structure with high surface areas (313-417 m(2)/g). Faster hydrolysis rates lead to shorter gelation times, and smaller pore sizes in the derived ceramic. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1441 / 1448

页数：8

共 18 条

[1]

BICKMORE C, 1992, MATER RES SOC SYMP P, V249, P81

[2]

HENCSEI P, 1985, REV SILICON GERMANIU, V8, P191

[3] DYNAMIC VISCOELASTICITY DURING SOL-GEL REACTIONS [J].