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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Danov, Krassimir D. Kralchevsky, Peter A. Anachkov, Svetoslav E. Georgieva, Gergana S. Ananthapadmanabhan, Kavssery P. |
| Description | Country affiliation: Bulgaria Author Affiliation: Anachkov SE ( Department of Chemical Engineering, Faculty of Chemistry and Pharmacy, Sofia University, Sofia 1164, Bulgaria.); Kralchevsky PA ( Department of Chemical Engineering, Faculty of Chemistry and Pharmacy, Sofia University, Sofia 1164, Bulgaria. Electronic address: pk@lcpe.uni-sofia.bg.); Danov KD ( Department of Chemical Engineering, Faculty of Chemistry and Pharmacy, Sofia University, Sofia 1164, Bulgaria.); Georgieva GS ( Department of Chemical Engineering, Faculty of Chemistry and Pharmacy, Sofia University, Sofia 1164, Bulgaria.); Ananthapadmanabhan KP ( Unilever Research & Development, 40 Merritt Blvd., Trumbull, CT 06611, USA.) |
| Abstract | Here, we present a detailed theoretical model describing the growth of disclike surfactant micelles. The model is tested against light-scattering data for micellar solutions from mixed conventional surfactants and from fluorinated surfactants. Theoretical expressions are derived for the concentration dependencies of the number and mass average aggregation numbers. Central role in the theory is played by the difference between the chemical potentials of a surfactant molecule in cylindrical and discoidal micelles. This difference, scaled with the thermal energy kT, is denoted p. For p<0, the formation of cylindrical (rather than disclike) micelles is energetically favored. For p>0 disclike micelles are formed, but their growth is limited due to the rise of their positive peripheral energy. Because of that, disclike micelles can be observed in a relatively narrow interval, 0 |
| ISSN | 00219797 |
| Volume Number | 416 |
| e-ISSN | 10957103 |
| Journal | Journal of Colloid and Interface Science |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-02-15 |
| Publisher Place | United States |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Models, Statistical Surface-active Agents Chemistry Halogenation Hydrodynamics Light Micelles Scattering, Radiation Solutions Thermodynamics Viscosity Journal Article Research Support, Non-u.s. Gov't Discipline Colloid & Interface Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Colloid and Surface Chemistry Biomaterials Electronic, Optical and Magnetic Materials |
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