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Pseudophase separation theory

Advances in the theory of mixed-micelle formation have made it possible to calculate the composition of mixed micelles formed by two or more surfactants. A thermodynamic treatment of micellar solutions of mixed surfactants is usually based on the pseudophase separation theory [61,71-74]. The pseudophase models developed for binary surfactant solutions assume ideal mixing of the surfactants in the micelle. [Pg.294]

Murphy, A., Taggart, G. A comparison of predicted and experimental critical micelle concentration values of cationic and anionic ternary surfactant mixtures using molecular-thermodynamic theory and pseudophase-separation theory. Colloids Surf. A 2002, 205(3), 237-248. [Pg.65]

The anionic fluorinated surfactant (SPFO) forms with the nonionic or the amphoteric hydrocarbon surfactant mixed micelles containing both types of surfactants. Both systems exhibit a negative deviation from ideality. Changes of the F and H chemical shifts of the two surfactants upon mixing are consistent with pseudophase diagrams, calculated from the cmc dependence on the fluorinated surfactant mole fraction. The interpretation of data was based a modified regular solution theory and the phase-separation model. [Pg.297]


See other pages where Pseudophase separation theory is mentioned: [Pg.109]    [Pg.289]    [Pg.1462]    [Pg.217]    [Pg.295]   
See also in sourсe #XX -- [ Pg.205 , Pg.211 , Pg.220 , Pg.248 , Pg.260 , Pg.297 ]




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