Adsorption and Micellization in Solutions of Dodecylpyridinium Bromide–Nonionic Surfactant Mixtures
作者： T. V. Kharitonova , N. I. Ivanova , B. D. Summ
关键词: Aqueous solution 、 Micelle 、 Interaction energy 、 Pulmonary surfactant 、 Inorganic chemistry 、 Thermodynamics of micellization 、 Cationic polymerization 、 Surface tension 、 Adsorption 、 Chemistry
摘要: Dependences of the surface tension aqueous solutions cationic (dodecylpyridinium bromide) and nonionic (Tween 80, Triton X-100) surfactants their mixtures on total surfactant concentration solution composition were studied. The values critical micellization (CMC) excess free energy adsorption determined from tensiometric measurements. Based Rubingh–Rosen model (approximation theory regular solutions), compositions micelles layers at solution–air interface as well parameters interaction between molecules calculated for systems indicated above. It was established that, in case with considerable difference CMCs, individual lower CMC value are formed. effect negative deviation ideality during mixed disclosed. shown that depends significantly systems.
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