Effect of H/sub 2/O and D/sub 2/O on colloidal properties of surfactant solutions and microemulsions
The effect of hydration on microemulsion properties was investigated by comparing the differences between 2 oil-brine-surfactant-alcohol systems containing H/sub 2/O or D/sub 2/O, in the following processes: solubilization in middle phase microemulsions, coacervation of aqueous surfactant solutions, surfactant distribution between oil and brine in oil-external microemulsions. The differences between these 2 systems, at a microscopic level, were investigated further by measuring the interfacial alcohol concentration and surface charge density of oil-external microemulsions by alcohol titration, electric resistance and dielectric relaxation methods. An expression relating the surface charge density to the free energies of transfer from H/sub 2/O to D/sub 2/O of interfacial surfactant anions and counterions also is given. 41 references.
- OSTI ID:
- 7023637
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 80:1; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALCOHOLS
BRINES
CATALYTIC EFFECTS
COLLOIDS
DISPERSIONS
EMULSIONS
ENERGY
EQUATIONS
FREE ENERGY
HEAVY WATER
HYDRATION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INTERFACES
MICROEMULSIONS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTENTIALS
QUANTITY RATIO
SOLUBILITY
SOLVATION
SURFACE POTENTIAL
SURFACTANTS
THERMODYNAMIC PROPERTIES
WATER