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Ternary system (surfactant-polyelectrolyte-polyelectrolyte) complexes: Determination of the characteristic concentrations

L Tennouga, A Mansri, K Medjahed
Journal of Chemical and Pharmaceutical Research   unpublished

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The system (sodium dodecyl sulfate (SDS)-hydrolyzed polyacrylamide AD37-poly(4-vinylpyridine (P4VP)) in aqueous media for the fixed AD37 concentration at T=25°C, was investigated using conductivity measurements. The characteristic concentrations of the surfactant-polyelectrolyte-polyelectrolyte complexation: the critical aggregation concentration (CAC) and saturation of the polyelectrolyte complex (AD37/P4VP) by SDS (X2) were determined from the curve of conductivity according the concentration
more » ... of surfactant. In the presence of the complex (AD37/P4VP), the relationship between conductivity and SDS concentrations shows two breaks of slope.
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L Tennouga, A Mansri, K Medjahed. "Ternary system (surfactant-polyelectrolyte-polyelectrolyte) complexes: Determination of the characteristic concentrations." Journal of Chemical and Pharmaceutical Research 2012.11