期刊
JOURNAL OF SURFACTANTS AND DETERGENTS
卷 13, 期 4, 页码 459-464出版社
WILEY
DOI: 10.1007/s11743-010-1180-0
关键词
Cationic surfactants; Ionic-liquid salt; Micellization; Adsorption; Thermodynamics
资金
- Institute of Petrochemical Processes of National Academy of Sciences of Azerbaijan
The surface-active properties of ionic-liquid type salts synthesized by the interaction of ethanolamines and decyl bromide have been studied. Surface tension as a function of concentration of the surfactant in aqueous solution was measured at 10, 20, 30 and 40 A degrees C using a drop volume stalagmometer. From these measurements, the maximum surface excess concentration and the minimum area per molecule at the aqueous solution/air interface, the critical micelle concentration (CMC), the surface pressure at the CMC, and the standard thermodynamic parameters of adsorption and micellization were calculated. The structural effects on adsorption, micellization, and the effectiveness of surface tension reduction are discussed in terms of these parameters.
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