Probe effects on micellar size

Journal Article · Sun Mar 01 04:00:00 EST 1981 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(81)90166-1· OSTI ID:6740016

Offen, H W; Dawson, D R; Nicoli, D F

The effect of several probes on the average hydrodynamic radius of micelles, as measured by photon correlation spectroscopy, is reported for several detergent-salt solutions. The micelles of myristyltrimethylammonium bromide, which grow in the presence of electrolyte, show further growth upon addition of pyrene and 1-anilino-8-naphthalensulfona (ANS) but shrink upon addition of hexane. In the detergent-salt concentration regime, where minium sphere values (average hydrodynamic radius is approx. 23 angstroms) are observed, hexane does not perturb the apparent size up to its solubility limit. Probe effects on micellar size are also reported for cetyltrimethylammonium chloride, dodecyltrimethylammonium bromide, and sodium dodecyl sulfate at high counterion concentrations.

• OSTI ID: 6740016
• 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

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ADDITIVES
ALKALI METAL COMPOUNDS
ALKANES
AMMONIUM CHLORIDES
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
AROMATICS
CHLORIDES
CHLORINE COMPOUNDS
CONDENSED AROMATICS
DETERGENTS
EMULSIFIERS
FLUID MECHANICS
HALIDES
HALOGEN COMPOUNDS
HEXANE
HYDROCARBONS
HYDRODYNAMICS
MECHANICS
MICELLAR SYSTEMS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PARTICLE SIZE
PHYSICAL PROPERTIES
PROBES
PYRENE
SALTS
SIZE
SODIUM COMPOUNDS
SODIUM SULFATES
SPECTROSCOPY
SULFATES
SULFUR COMPOUNDS
SURFACTANTS
WETTING AGENTS