کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
611846 880686 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synergistic effects in mixtures of oppositely charged surfactants as calculated from the Poisson–Boltzmann theory: A comparison between theoretical predictions and experiments
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Synergistic effects in mixtures of oppositely charged surfactants as calculated from the Poisson–Boltzmann theory: A comparison between theoretical predictions and experiments
چکیده انگلیسی

Critical micelle concentrations in mixtures of an anionic surfactant and a cationic amphiphilic drug have been investigated using a model-independent procedure to quantify observed synergistic effects. Experimental results were compared with a theory based on the Poisson–Boltzmann mean field approximation of a charged interface with a diffuse layer of counterions. Explicit expressions for the activity coefficients from which the critical micelle concentration can be calculated and quantitatively predicted have been derived and excellent agreement between experimental data and theory was obtained. As a result, we demonstrate that it is possible to rationalize and predict the magnitude of synergism in mixtures of oppositely charged surfactants in the presence of added salt.

Comparison between experiments and a theory based on the Poisson–Boltzmann mean field approximation shows that it is possible to rationalize and predict the magnitude of synergistic effects in mixtures of oppositely charged surfactants in the presence of added salt.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 322, Issue 2, 15 June 2008, Pages 589–595
نویسندگان
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