Determination of critical micelle concentrations in micellar and reversed micellar systems by positron annihilation techniques

Journal Article · Tue Jan 31 23:00:00 EST 1978 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00471a061· OSTI ID:5149206

Jean, Y; Ache, H J

The applicability of the positron annihilation technique is discussed as a simple method for the accurate determination of the critical micelle concentration (cmc). The results of a preliminary study of positron interactions in solutions with various amounts of surfactants present are reported. The six different micellar systems studied were dodecylammonium propionate in benzene, cyclohexane, and n-hexane; sodium di(2-ethylhexyl)sulfosuccinate in benzene; sodium decylsulfate and decyltrimethylammonium bromide in water. The tabulated results indicated that this technique was applicable to the determination of cmc's in both aqueous and nonaqueous solutions. (BLM)

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg
• OSTI ID: 5149206
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 100:3; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
BASIC INTERACTIONS
COLLISIONS
ELECTROMAGNETIC INTERACTIONS
ELECTRON COLLISIONS
ELECTRON-POSITRON COLLISIONS
ELEMENTARY PARTICLES
ENERGY SOURCES
ENHANCED RECOVERY
FERMIONS
FOSSIL FUELS
FUELS
INTERACTIONS
LEPTONS
MICELLAR SYSTEMS
PETROLEUM
POSITRON COLLISIONS
POSITRONS
QUANTITY RATIO