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| Reference : Condensation-Induced Decrease of Small-Angle X-ray Scattering Intensity in Gelling Silic... |
| Scientific journals : Article | |||
| Physical, chemical, mathematical & earth Sciences : Physics Physical, chemical, mathematical & earth Sciences : Chemistry | |||
| http://hdl.handle.net/2268/75760 | |||
| Condensation-Induced Decrease of Small-Angle X-ray Scattering Intensity in Gelling Silica Solutions | |
| English | |
Gommes, Cédric  [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >] | |
| Pirard, Jean-Paul [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >] | |
| Goderis, Bart [Katholieke Universiteit Leuven - KUL > > > >] | |
| 2010 | |
| Journal of Physical Chemistry C: Nanomaterials, Interfaces, and Hard Matter | |
| American Chemical Society | |
| 114 | |
| 17350–17357 | |
| Yes (verified by ORBi) | |
| International | |
| 1932-7447 | |
| 1932-7455 | |
| Washington | |
| DC | |
| [en] SAXS ; Silica gels ; condensation | |
| [en] We propose a mathematical modeling of the total SAXS intensity in silica sol-gel processes in terms of hydrolysis and condensation reactions, as well as of microsyneresis. The results are used to rationalize previously published SAXS data of TEOS solutions reacting with organically modified trialkoxysilanes. We notably show that the decrease in SAXS intensity reported for these samples at the end of gelation is a consequence of condensation reactions. The water released by the latter reactions contributes to reduce the electron density difference between the silica and the solvent phases of the gels | |
| Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS | |
| Researchers ; Professionals ; Students | |
| http://hdl.handle.net/2268/75760 |
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