期刊
COMPTES RENDUS CHIMIE
卷 12, 期 1-2, 页码 225-234出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.crci.2008.09.009
关键词
Polyelectrolyte multilayers; Neutron reflectometry; Superlattice film; Polymer; Interface; Spray-deposition; Nanofabrication
资金
- Institut Universitaire de France
- Laboratoire Uon Brillouin
- Universite Louis Pasteur
- C.N.R.S.
- French Ministere de l'Enseignement
We describe first neutron reflectometry experiments on spray-assembled polyelectrolyte multilayer films containing regularly spaced layers of perdeuterated poly(styrene sulfonate). From samples containing either only non-deuterated layers or containing a maximum of deuterated layers we obtain all model parameters (thicknesses, scattering length densities and roughnesses) required for calculating the reflectivities of multilayer films with a regular superlattice structure. For two different superlattice films we show that we obtain an excellent match between experimental data and calculated reflectivities without any free fit parameter. Our data clearly demonstrate that spray-assembled polyelectrolyte multilayers are indeed stratified although some structural parameters differ enormously from films prepared by classic dipping. Our present experiments confirm a substantial difference ill thickness and suggest a reduced interfacial roughness in spray-assembled films. To cite this article: O. Felix et al., C. R. Chimie 12 (2009). (C) 2008 Published by Elsevier Masson SAS on behalf of Academie des sciences.
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