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BinaryMixture mixturesBinary mixtures of surfactantsSurfactant (i and j surfactants) above a particular concentrationConcentration that depends on the molar ratiosMolar ratio of monomers—the critical micellarMicellar concentration (cmcij)—form a binaryMixed micelle mixedMicelle micelleBinary mixed micelle. Assuming synergisticSynergistic interactionsSynergistic interactions of sufficient size between the micellarMicellar building unitsMicellar building units, mixed micellesMicelle are thermodynamically more stable than the hypothetical idealMixed micelle mixed micellesIdeal mixed micelle (of the same compositionComposition), then cmcij can be lower even than cmci values of the hydrophobicHydrophobic micellarHydrophobic micellar componentMicellar, and the ecologicalEcological trace of binaryMicelle micelleBinary micelle decreases relative to the monocomponent micelleMicelle (the total amount of surfactantSurfactant released to the environmentEnvironment decreases). At a fixed temperatureTemperature and molar ratioMolar ratio of surfactantsSurfactant in their binary mixtureMixture, cmcij is experimentally determined. ParametersParameters for micelles of theParameter mixed micellarMicellar state such as molar ratiosMolar ratio of micellarMicellar building unitsMicellar building units in the mixed micellesMixed micelle, molecularMolecular interactionMolecular interaction coefficient coefficientInteraction coefficient, surfactant’s activitySurfactant’s activity coefficients coefficientsActivity coefficient, andExcess Gibbs free energy excess GibbsFree energy free energyEnergy canGibbs free energy be extracted from a thermodynamicThermodynamic modelThermodynamic model. Therefore, the values of these parametersParameter may vary depending on the applied model. Thus, the chapter analyzes various thermodynamicThermodynamic modelsThermodynamic model used to describe binary mixedMicelle micellesBinary mixed micelle and analyzes how the structuresStructure of surfactantsSurfactant influence the selection of appropriate thermodynamicThermodynamic methods.

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Thermodynamics of the Binary Mixed Micelle Formation, Mixed Micelle Without the Effect of Counterion Binding

  • 章节

  • 发表日期：

    2026年

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  • Mihalj Poša

摘要

BinaryMixture mixturesBinary mixtures of surfactantsSurfactant (i and j surfactants) above a particular concentrationConcentration that depends on the molar ratiosMolar ratio of monomers—the critical micellarMicellar concentration (cmcij)—form a binaryMixed micelle mixedMicelle micelleBinary mixed micelle. Assuming synergisticSynergistic interactionsSynergistic interactions of sufficient size between the micellarMicellar building unitsMicellar building units, mixed micellesMicelle are thermodynamically more stable than the hypothetical idealMixed micelle mixed micellesIdeal mixed micelle (of the same compositionComposition), then cmcij can be lower even than cmci values of the hydrophobicHydrophobic micellarHydrophobic micellar componentMicellar, and the ecologicalEcological trace of binaryMicelle micelleBinary micelle decreases relative to the monocomponent micelleMicelle (the total amount of surfactantSurfactant released to the environmentEnvironment decreases). At a fixed temperatureTemperature and molar ratioMolar ratio of surfactantsSurfactant in their binary mixtureMixture, cmcij is experimentally determined. ParametersParameters for micelles of theParameter mixed micellarMicellar state such as molar ratiosMolar ratio of micellarMicellar building unitsMicellar building units in the mixed micellesMixed micelle, molecularMolecular interactionMolecular interaction coefficient coefficientInteraction coefficient, surfactant’s activitySurfactant’s activity coefficients coefficientsActivity coefficient, andExcess Gibbs free energy excess GibbsFree energy free energyEnergy canGibbs free energy be extracted from a thermodynamicThermodynamic modelThermodynamic model. Therefore, the values of these parametersParameter may vary depending on the applied model. Thus, the chapter analyzes various thermodynamicThermodynamic modelsThermodynamic model used to describe binary mixedMicelle micellesBinary mixed micelle and analyzes how the structuresStructure of surfactantsSurfactant influence the selection of appropriate thermodynamicThermodynamic methods.