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Issue 46, 2009
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Isomeric periodic mesoporous organosilicas with controllable properties

Carl Vercaemst,*a  Matthias Ide,a  Heiner Friedrich,b  Krijn P. de Jong,b  Francis Verpoorta  and  Pascal Van Der Voort*a 
Author affiliations

* Corresponding authors

a Department of Inorganic and Physical Chemistry, Centre for Ordered Materials, Organometallics and Catalysis, University of Ghent, Krijgslaan 281, building S3, 9000 Ghent, Belgium
E-mail: carl.vercaemst@ugent.be
Fax: +32 9264 4983
Tel: +32 9264 4442

b Department of Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, NL-3508 TB Utrecht, The Netherlands

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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Publication details

The article was received on 13 Jul 2009, accepted on 18 Sep 2009 and first published on 15 Oct 2009


Article type: Paper
DOI: 10.1039/B913961C
Citation: J. Mater. Chem., 2009,19, 8839-8845

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    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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