Theoretical behavior of microemulsions: geometrical aspects and dilution properties

Biais, J.; Bothorel, P.; Clin, B.; Lalanne, P.

doi:10.1016/0021-9797(81)90169-7

Cited by 53 publications

(16 citation statements)

References 6 publications

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“…We note that these assumptions concerning the distribution of the components between different domains in the solution is very similar to the pseudophase model suggested by Biais et al [30,31].…”

Section: Descriptions Of the Modelmentioning

confidence: 79%

“…This leads to variations in the solubility of water and, hence, it is necessary to take into account the distribution of water between the interior of the reversed micelle and the organic phase. The importance of the autoassociation process caused by intramolecular hydrogen bonding in alcohol-containing solvents as well as the distribution of water between the aqueous and organic moieties in reversed micellar solutions is clearly brought forward in a recent thermodynamic model [30,31].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reversed micellar solutions in the system sodium octanoate/decanol/water: Model calculations and dynamic light scattering measurements

Sjöblom¹,

Rosenqvist²,

Stenius³

1982

Colloid & Polymer Sci

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Geometrical calculations of aggregate sizes in the reversed micellar solution phase of the system water/sodium octanoate/decanol at 20 ~ have been tested by dynamic light scattering studies. The autocorrelation functions were interpreted in the simplest possible way (monodisperse aggregates, Stokes-Einstein diffusion equations) since the geometrical model does not account for detailed changes in shapes or micellar interactions. The model predicts the main features of micellization in these solutions, i. e., the micelles grow continuously as the concentration of water or the molar ratio water/octanoate increases, association begins at quite low concentrations of water and the surrounding decanolic solvent behaves as pure decanol which is saturated with water.

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Section: Descriptions Of the Modelmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Reversed micellar solutions in the system sodium octanoate/decanol/water: Model calculations and dynamic light scattering measurements

Sjöblom¹,

Rosenqvist²,

Stenius³

1982

Colloid & Polymer Sci

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“…To describe these states, the model is extended to incorporate alcohol continuous regions 44 The standard chemical potential difference between an alcohol molecule at the polar-apolar interface and in the bulk alcohol may be calculated from the interfacial tension to be 0.5 kJ/mole at 25 0 C. Furthermore the area per polar group in the reversed micelles was chosen as 20A2. In the lamellar phase at higher water contents, where there is one-dimensional swelling, the area per chain is constant at 25A2 corresponding to nearly straight chains 1,42. These features are included in the total thermodynamic model of the system.…”

Section: Alkanoate -Alcohol -Watermentioning

confidence: 99%

Principles of Phase Equilibria in Surfactant — Water Systems

Jönsson

Nilsson

Lindman

et al. 1984

Surfactants in Solution

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The relation between the molecular properties of a surfactant and the phase equilibria in the corresponding surfactant -water system is investigated. The emphasis is on the qualitative features that emerge from previous quantitative studies. The systems discussed are: poly(ethyleneoxide)alkyl ether -water, dialkylphosphatidylcholine -water, alkanoate -water, and alkanoate -alcohol -water. While the interactions involving the alkyl chains are essentially the same in these systems, there are large differences in the nature of the interaction between the polar groups. For each system the dominating interactions involving the polar groups are identified. For the ionic surfactant this is the direct ion -ion interaction, while for the zwitterionic phosphatidylcholines the headgroup -headgroup and headgroup -solvent interactions are both important. It is argued that the hydrophilicity of the ethyleneoxide chains is mainly due to the entropy of mixing with the aqueous solvent, while there is an effective repulsive interaction between an ethyleneoxide unit and the water above room temperature. The repulsion increases strongly with increasing temperature which has important implications for the temperature dependence of phase equilibria.

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“…Consequently, the phase behavior of these systems (water, oil, surfactant and cosurfactant) is very important and has been the subject of intensive studies [2,6,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Phase behavior of pseudoternary brine/alkane/alcohol-secondary alkanesulfonates systems

Azira

Tazerouti²,

Canselier

2008

J Therm Anal Calorim

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Theoretical behavior of microemulsions: geometrical aspects and dilution properties

Cited by 53 publications

References 6 publications

Reversed micellar solutions in the system sodium octanoate/decanol/water: Model calculations and dynamic light scattering measurements

Reversed micellar solutions in the system sodium octanoate/decanol/water: Model calculations and dynamic light scattering measurements

Principles of Phase Equilibria in Surfactant — Water Systems

Phase behavior of pseudoternary brine/alkane/alcohol-secondary alkanesulfonates systems

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