R
Roger Sandeaux
Researcher at Centre national de la recherche scientifique
Publications - 38
Citations - 1189
Roger Sandeaux is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Membrane & Electrodialysis. The author has an hindex of 23, co-authored 38 publications receiving 1144 citations. Previous affiliations of Roger Sandeaux include University of Montpellier.
Papers
More filters
Journal ArticleDOI
Competition between the electrotransports of acetate and chloride ions through a polymeric anion exchange membrane
TL;DR: By applying the Nernst-Planck electrodiffusion equation to analysis of the transport of each ion in the unstirred layer, it is possible to determine the rate constant of ion transfer at the membrane-solution interface.
Journal ArticleDOI
Improvements of the selectivity of ionic transport through electrodialysis membranes in relation with the performances of separation electromembrane processes
Claude Gavach,J.-L. Bribes,Agnès Chapotot,J. Maillols,Gérald Pourcelly,Jacqueline Sandeaux,Roger Sandeaux,Isabelle Tugas +7 more
TL;DR: In this article, the authors examined four particular cases where the analysis of the ion transport selectivity has been developed in relation with better performances of the electromembrane processes: (i) reduction of the proton leakage through anion exchange membranes in contact with acidic solutions.
Journal ArticleDOI
Physico-chemical characterization of the ionic permeability of an enteric coating polymer
F. Raffin,C. Duru,Maurice Jacob,Philippe Sistat,Jacqueline Sandeaux,Roger Sandeaux,Gérald Pourcelly,Claude Gavach +7 more
TL;DR: In this paper, a two-step transport mechanism is proposed to explain the variation of the experimental data with time, showing the importance of using a hydrophobic plasticizer to improve the gastroresistance of the polymer.
Journal ArticleDOI
Transport of potassium ions across planar lipid membranes by the antibiotic, grisorixin: I. The equilibrium state and self-diffusion K+ fluxes.
TL;DR: Using the data of some previous studies for mixed ionophorelipid monolayers at the air/water interface and the present results for the self-diffusion flux measurements, an evaluation of the more important parameters characterizing the transport is proposed; namely, the total surface concentration of grisorixin, the interfacial pK and the translocation rate constant of its potassium neutral complex.
Journal ArticleDOI
Desorption of counter-ions followed with labelled ions and water dissociation in perfluorinated quaternary ammonium membranes and Nafion 125 membranes
TL;DR: In this paper, desorption and exchange phenomena have been studied in perfluorinated quaternary ammonium membranes (QAM) by means of radiotracers.