A facile surfactant critical micelle concentration determination
نویسندگان
چکیده
منابع مشابه
Determination of the critical micelle concentration in simulations of surfactant systems.
Alternative methods for determining the critical micelle concentration (cmc) are investigated using canonical and grand canonical Monte Carlo simulations of a lattice surfactant model. A common measure of the cmc is the "free" (unassociated) surfactant concentration in the presence of micellar aggregates. Many prior simulations of micellizing systems have observed a decrease in the free surfact...
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One of the tertiary methods for enhanced oil recovery (EOR) is the injection of chemicals into oil reservoirs, and surface active agents (surfactants) are among the most used chemicals. Surfactants lead to increased oil production by decreasing interfacial tension (IFT) between oil and the injected water and to the wettability alteration of the oil reservoir rock. Since surfactants are predomin...
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The interfacial tension of surfactant solutions is decreased with increasing surfactant concentration to obtain the critical micelle concentration (CMC). After that, the CMC values does not alter much. So this concentration is a critical point during surfactant flooding that is one of the chemical EOR techniques. The reduction of the CMC value is taken into consideration, since the surfactant f...
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A systematic approach to selection of surfactants for disrupting biological membranes, for solubilizing their components, and for removing the surfactant by dialysis is described. The two relevant surfactant parameters were the critical micelle concentration (CMC) and the hydrophile-lipophile balance (HLB). Rat liver mitochondria were treated with two series of nonionic surfactants and the exte...
متن کاملCommunication: Effect of solvophobic block length on critical micelle concentration in model surfactant systems.
Experimental measurements of the Critical Micelle Concentration (CMC) in diblock copolymer and molecular surfactant systems have shown a cross-over from the exponential decrease at short chain lengths to a much more shallow decay of the CMC when the solvophobic block length was increased. This effect was observed for a wide variety of surfactants, and has been attributed to the collapse of the ...
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ژورنال
عنوان ژورنال: Chemical Communications
سال: 2011
ISSN: 1359-7345,1364-548X
DOI: 10.1039/c1cc10605h