Title of article
Inverse gas chromatography for determining the dispersive surface energy of porous silica
Author/Authors
Michael Rückriem، نويسنده , , M. and Inayat، نويسنده , , A. and Enke، نويسنده , , D. and Glنser، نويسنده , , R. and Einicke، نويسنده , , W.-D. and Rockmann، نويسنده , , R.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
6
From page
21
To page
26
Abstract
Inverse gas chromatography (IGC) is a modern technique for the characterization of porous materials, which provides thermodynamic parameters of the solids. Porous glass beads, silica gels and ordered mesoporous materials were used as model systems to study correlations between the dispersive part of the surface energy and the surface chemistry of porous materials. The surface chemistry of silica was controlled via thermal treatment and reaction with 1,1,1,3,3,3-hexamethyldisilazane (HMDS) or 3-amino-propyltriethoxysilane (3-APTS). The dependency of the surface energy on the various modifications was investigated in this study. Furthermore, the impact of microstructure on the dispersive surface energy was determined by a comparative study of the ordered mesoporous materials MCM-41, SBA-15 and SBA-16.
Keywords
Ordered mesoporous materials , Porous glasses , Silica gel , Surface hydrophobisation , surface energy , Inverse gas chromatography
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year
2010
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number
1939092
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