Biomimetic catalysis at silicon centre using molecularly imprinted polymers

被引：78

作者：

Abbate, Vincenzo ^{[1
]}

Bassindale, Alan R. ^{[1
]}

Brandstadt, Kurt F. ^{[2
]}

Taylor, Peter G. ^{[1
]}

机构：

[1] Open Univ, Dept Chem & Analyt Sci, Milton Keynes MK7 6AA, Bucks, England

[2] Dow Corning Corp, Midland, MI 48686 USA

来源：

JOURNAL OF CATALYSIS | 2011年 / 284卷 / 01期

关键词：

Biomimetic catalyst; Molecularly imprinted polymers; Transition state; Siloxane bond; Silica precipitation; BOND FORMATION; SILICATEIN ALPHA; HYDROLYSIS; ANTIBODIES; BIOSILICA; COMPLEX; SYSTEMS;

D O I：

10.1016/j.jcat.2011.08.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The first example of biomimetic siloxane bond formation catalyzed by molecularly imprinted polymers (MIPs) is reported. MIPs were prepared by free-radical polymerization and characterized via a combination of solid-state NMR, infrared spectroscopy, and electron microscopy studies. Methacrylic acid-based polymers with high functional monomer content were observed to catalyze the hydrolysis and condensation of a model monoalkoxysilane to a greater extent when compared with the corresponding blank (non-imprinted) materials and buffer control solutions, as judged by quantitative gas chromatography investigations. Moreover, the polymers were used as biomimetic catalysts to synthesize silica-MIP hybrids with a certain degree of control of the microstructure of the resulting composites. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：68 / 76

页数：9

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