Droplet size in oil-external microemulsions using the membrane diffusion technique

Journal Article · Sat Nov 01 04:00:00 EST 1980 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(80)90517-2· OSTI ID:7023555

Chou, S I; Shah, D O

The hydrodynamic radii of the microemulsion droplets in dilute oil-external microemulsions was determined by the membrane diffusion technique employing cylindrical-pore nuclepore membranes of 500-angstroms pore radius and 5-micrometers thickness. The cell constant of the diffusion cell was calibrated by measuring the diffusion coefficient of inverted aerosol to micelles in octane and of SDS micelles in 0.15 M NaCl brine. For the present system, the hydrodynamic radii of the microemulsion droplets were found to be about 150 angstroms, in reasonable agreement with those determined by light scattering, quasi-elastic light scattering, and ultracentrifugation measurements. 21 references.

• OSTI ID: 7023555
• Journal Information: J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 78:1; ISSN JCISA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKALI METAL COMPOUNDS
ALKANES
CENTRIFUGATION
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DISPERSIONS
DROPLETS
EMULSIONS
FLUID MECHANICS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDRODYNAMICS
LIGHT SCATTERING
MEASURING METHODS
MECHANICS
MEMBRANES
MICELLAR SYSTEMS
MICROEMULSIONS
OCTANE
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PARTICLE SIZE
PARTICLES
SCATTERING
SEPARATION PROCESSES
SIZE
SODIUM CHLORIDES
SODIUM COMPOUNDS
SULFONATES
ULTRACENTRIFUGATION