Surface Activity, Thermodynamics of Micellization and Adsorption Properties of Quaternary Salts Based on Ethanolamines and Decyl Bromide
| Autor: | Ravan A. Rahimov, Ziyafaddin H. Asadov, Gulnara A. Ahmadova, Shafiga M. Nasibova |
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| Rok vydání: | 2010 |
| Předmět: |
Aqueous solution
Chemistry General Chemical Engineering Inorganic chemistry Thermodynamics of micellization Surfaces Coatings and Films Surface tension Stalagmometric method symbols.namesake Gibbs isotherm Adsorption Pulmonary surfactant Critical micelle concentration symbols Physical and Theoretical Chemistry |
| Zdroj: | Journal of Surfactants and Detergents. 13:459-464 |
| ISSN: | 1558-9293 1097-3958 |
| DOI: | 10.1007/s11743-010-1180-0 |
| Popis: | 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 °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. |
| Databáze: | OpenAIRE |
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