Periodic Mesoporous Organosilicas with Domain Functionality: Synthesis and Advanced Characterization

Jones, James T. A., Wood, Colin D., Dickinson, Calum and Khimyak, Yaroslav Z. (2008) Periodic Mesoporous Organosilicas with Domain Functionality: Synthesis and Advanced Characterization. Chemistry of Materials, 20 (10). pp. 3385-3397. ISSN 0897-4756

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Abstract

Bifunctional periodic mesoporous organosilicas (PMOs) with CH2CH2/CHCH bridges have been synthesized using a salt assisted nonionic templating method. The ability to direct locations of the individual organic groups using a novel silica precursor prehydrolysis step is demonstrated. Depending on the prehydrolysis conditions the products showed either structural heterogeneities consisting of domains of the same functionality or a structurally homogeneous system, confirmed by 1H-29Si heteronuclear correlation (HETCOR) experiments. The resulting PMOs show large pore volumes (up to 1.34 cm3 g-1) and high surface areas (up to 1310 m2 g-1). The ability to form domain structures within the same mesostructure may have potential applications in molecular recognition and separation.

Item Type: Article
Faculty \ School: Faculty of Science > School of Pharmacy
Depositing User: Rhiannon Harvey
Date Deposited: 31 Jan 2012 13:11
Last Modified: 21 Apr 2020 17:53
URI: https://ueaeprints.uea.ac.uk/id/eprint/36632
DOI: 10.1021/cm7036124

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