Modification of SiO2 surfaces by reaction with trialkoxymethanes and triphenoxymethane

被引：13

作者：

Guidotti, BR ^{[1
]}

Caseri, WR ^{[1
]}

Suter, UW ^{[1
]}

机构：

[1] ETH ZURICH,INST POLYMERE,CH-8092 ZURICH,SWITZERLAND

来源：

LANGMUIR | 1996年 / 12卷 / 18期

关键词：

D O I：

10.1021/la9515130

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

SiO2 (Aerosil) reacts with trialkoxymethanes and triaryloxymethanes (orthoformates) of the formula HC(OR)(3), R = CH3, C2H5, n-C4H9, and C6H5. The modified surface was analyzed with IR and solid-state NMR spectroscopy and thermogravimetric analysis (TGA). The results show that only the alkyl (or aryl) residues are left on the surface (as part of alkoxy or aryloxy groups). Alkyl residues are more tightly bound to the surface than aryl residues. The reaction of SiO2 with trialkoxymethanes allows stable modifications with organic products in the range of monolayer coverage, with little effort.

引用

页码：4391 / 4394

页数：4

共 37 条

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[Anonymous], 1970, IR THEORY PRACTICE I, DOI DOI 10.1007/978-1-4684-8160-0

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