Directing role of pH and ethanol vapour on the formation of 2D or 3D mesostructured silica and hybrid organo-silica thin films
B. Alonso (CRMHT, CNRS UPR )
A. R. Balkenende (Philips Research Laboratories)
PA Albouy (University of Paris-Sud)
Leyden Durand Lopez (LURE)
F. Babonneau (Université Paris VI)
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Abstract
A simple synthetic route leading to ordered mesostructured silica and organo-silica thin films is investigated by in situ X-ray experiments. The mesophase directing role of pH and of ethanol vapour pressure during film formation is demonstrated. Modifications of these two parameters during dip coating results in three different 2D or 3D mesostructures (p6mm, P63/mmc, or Pm3n).
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