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Mesoporous materials with an acidic framework and basic pores. A successful cohabitation
Johan Alauzun1, Ahmad Mehdi, Catherine Reyé
1Laboratoire de Chimie Moléculaire et Organisation du Solide, UMR 5637 CNRS, Institut Charles Gerhardt, Université Montpellier II, Sciences et Techniques du Languedoc, c 007, F-34095 Montpellier Cedex 5, France.
Abstract:
Bifunctional mesoporous material with an acidic framework and basic pores was synthesized via the co-condensation of TEOS, bistrimethoxysilylated precursors with a disulfide core, and 3-tert-butyloxycarbonyl (aminopropyl)triethoxysilane using P123 as surfactant; the reduction of disulfide units to SH groups followed by their oxidation into SO3H and deprotection of amino groups gave rise to a material containing two antagonist functionalities located at the nanometric scale in a successful cohabitation, avoiding their mutual destruction in the presence of aprotic solvent. This kind of material illustrates the large possibilities offered by mesoporous materials and opens new and unsuspected applications.
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