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Well-defined mesostructured organic-inorganic hybrid materials via atom transfer radical grafting of oligomethacrylates onto sba-15 pore surfaces

Moreno, J. and Sherrington, D.C. (2008) Well-defined mesostructured organic-inorganic hybrid materials via atom transfer radical grafting of oligomethacrylates onto sba-15 pore surfaces. Chemistry of Materials, 20 (13). pp. 4468-4474. ISSN 0897-4756

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Abstract

Well-ordered mesoporous organic−inorganic hybrid materials based on ATRP of methacrylate monomers inside SBA-15 pores have been synthesized maintaining the mesoporosity. Initially SBA-15 materials were funtionalised with the ATRP initiator by reaction of surface hydroxyl groups with (3-aminopropyl)-triethoxysilane (APTES) and 2-bromo-2-methylpropionyl bromide (BMPB); thus growth of oligomethacrylates occurred directly from the mesoporous walls. Two methacrylate monomers (MMA and GMA) and different monomer/initiator molar ratios (5/1 − 25/1) were tested. The characterization of the hybrid materials included N2 adsorption−desorption porosimetry, X-ray diffraction, 29Si MAS NMR, FT-IR spectroscopy, TEM and TG analysis. The results show that mesostructured hybrid materials with grafted oligomethacrylates maintain good porosity ( 0.4 cm3/g) and BET surface area ( 300 m2/g) with potential for use as catalyst components in chemical processes. The grafting of GMA-based oligomers is particularly important because the epoxide functionality allows further facile and versatile chemical modification, for example to introduce particular ligand structures and thence specific metal complexes.

Item type: Article
ID code: 19610
Keywords: mesoporous organic−inorganic hybrid material, atom transfer radical grafting, methacrylate monomers, ATRP, oligomethacrylates, ligand structures, chemical modification, Chemical technology, Chemistry, Materials Chemistry, Chemical Engineering(all), Chemistry(all)
Subjects: Technology > Chemical technology
Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 20 May 2010 12:07
    Last modified: 05 Sep 2014 02:28
    URI: http://strathprints.strath.ac.uk/id/eprint/19610

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