6533b829fe1ef96bd128acb7

RESEARCH PRODUCT

Enthalpy of Solution of Nonionic Solutes in Organized Systems

Americo IngleseMaurizio CastagnoloS. MiliotoR. De Lisi

subject

Condensed Matter::Soft Condensed MatterAqueous solutionChemistryPhase (matter)Distribution constantMicellar solutionsThermodynamicsPartial molar propertyPhysics::Chemical PhysicsMixing (physics)Standard enthalpy of formationEnthalpy change of solution

description

The standard enthalpies of solution of alcohols in micellar solutions of dodecyltrimethylammonium bromide were obtained by direct measurements and by enthalpies of mixing. The observed trends were analyzed with a previously reported model. From the resulting equations, the distribution constant, standard enthalpy of transfer from aqueous to the micellar phase and the standard enthalpy of solution in micellar phase can be calculated at the same time using a linear least-squares analysis. The model seems to hold well also in the case of short chain surfactants and microheterogeneities in spite of the fact that the micellization equilibrium is treated as a pseudo-phase transition.

yearjournalcountryeditionlanguage
1989-01-01
https://doi.org/10.1007/978-1-4615-7984-7_19