Biomimetic catalysis at silicon centre using molecularly imprinted polymers

Abbate, Vincenzo; Bassindale, Alan R.; Brandstadt, Kurt F. and Taylor, Peter G. (2011). Biomimetic catalysis at silicon centre using molecularly imprinted polymers. Journal of Catalysis, 284(1) pp. 68–76.

DOI: https://doi.org/10.1016/j.jcat.2011.08.019

Abstract

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.

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