Transient electric dichroism studies on interaction of a cationic dye with sodium dodecylsulfate
Transient electric dichroism is measured on a solution of sodium dodecylsulfate (SDS) and n-alkylated acridine orange cation (AO+-(CH/sub 2/)NH). The length of the alkyl chain of a dye cation is varied from N = 0 to N = 18. The electric dichroism is observed due to a large mixed aggregate of SDS and dye cation in the concentration ranges of (SDS) = 1-9 X 10/sup -3/ m and (DYE) = 1-2 X 10/sup -5/ m. Assuming a rodlike shape for such an aggregate, the length (L) of the aggregate is determined from the decay rate of the induced dichroism; L takes a value from 3300 angstroms (N = 0) to 5100 angstroms (N = 12). The sign and magnitude of the dichroism provide an angle phi between electrical field direction and the transition moment of a bound dye. Phi is dependent on the length of the attached alkyl chain to an appreciable extent. 17 references.
- OSTI ID:
- 6397350
- Journal Information:
- J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 81:2; ISSN JCISA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ABSORPTION
ACRIDINES
ALKALI METAL COMPOUNDS
ALKYL RADICALS
AROMATICS
AZAARENES
AZINES
CATIONS
CHARGED PARTICLES
COLLOIDS
DICHROISM
DISPERSIONS
DODECYL RADICALS
DYES
ELECTRIC FIELDS
EMULSIONS
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
IONS
MICROEMULSIONS
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
POLARIZATION
PYRIDINES
RADICALS
SODIUM COMPOUNDS
SODIUM SULFATES
SULFATES
SULFUR COMPOUNDS
WATERFLOODING