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Issue 46, 2009
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Isomeric periodic mesoporous organosilicas with controllable properties

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Abstract

The synthesis procedure for isomeric periodic mesoporous organosilicas with E-configured ethenylene bridges was investigated using the homemade pure E-isomer of 1,2-bis(triethoxysilyl)ethene. The pH, aging temperature and the presence of cosolvents played a key role in obtaining well-ordered mesoporous materials with controllable properties and morphologies. By fine-tuning the reaction mixture acidity, PMOs with high surface areas and pore volumes could be attained. By selecting various alcohols as cosolvents and optimizing the alcohol concentration, PMOs with crystal-like disc shaped, fibrous and spherical particle morphologies were obtained. The synthesis temperature of these ethenylene-bridged PMOs influences the pore size, structure, connectivity and volume.

Graphical abstract: Isomeric periodic mesoporous organosilicas with controllable properties

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Supplementary files

Article information


Submitted
13 Jul 2009
Accepted
18 Sep 2009
First published
15 Oct 2009

J. Mater. Chem., 2009,19, 8839-8845
Article type
Paper

Isomeric periodic mesoporous organosilicas with controllable properties

C. Vercaemst, M. Ide, H. Friedrich, K. P. de Jong, F. Verpoort and P. Van Der Voort, J. Mater. Chem., 2009, 19, 8839
DOI: 10.1039/B913961C

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