Analysis of dynamic surface tension data for SDS–DTAB mixed solutions
Literature Information
Ch. Frese, S. Ruppert, H. Schmidt-Lewerkühne, K. P. Wittern, R. Eggers, V. B. Fainerman, R. Miller
From dynamic surface tension data the micelle kinetics dissolution constants for SDS–DTAB mixed solutions of the two components and the highly surface active complex are determined. The experiments at different mixing ratios 1∶10, 1∶1 and 10∶1 allow conclusions about the competitive adsorption of the complex and the respective free component. It turns out that the micelle kinetics constant of dissolution for SDS is about one order of magnitude larger than the respective constant for DTAB, while the respective constant for the complex is again one order of magnitude smaller than that of DTAB. These constants are inversely proportional to the micelle relaxation times. Thus the complex micelles are most stable, while DTAB and SDS micelles are 10 and 100 times less stable, respectively.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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