Application of a Water Soluble Alkoxysilane for the Formation of Mesoporous Silica from Nonionic Surfactant Micelles Bearing Cholesterol
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A water soluble silica precursor, tetrahydroxyethyl orthosilicate (THEOS), was used for the synthesis of mesoporous silica from micellar solutions of a nonionic surfactant bearing cholesterol moiety (ChEO<SUB>10</SUB>), which also forms a variety of lyotropic liquid crystal (LLC) structures. The resulting mesoporous silica showed ribbon-like structures, both in μm and nm scale, corresponding to the rectangular LLC phase of ChEO<SUB>10</SUB>. We propose the use of THEOS as a novel silica precursor for the investigation of tailored imprinting of LLC topology into the mesoporous silica.
- Chemistry Letters
Chemistry Letters 36(1), 182-183, 2007-01-05
The Chemical Society of Japan