Buchner, Richard and Baar, C. and Fernandez, Patrick and Schrödle, Simon and Kunz, Werner (2005) Dielectric spectroscopy of micelle hydration and dynamics in aqueous ionic surfactant solutions. Journal of Molecular Liquids 118 (1-3), pp. 179-187.
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The dielec. relaxation of ionic surfactant solns. is discussed by comparing results for cationic (alkyltrimethylammonium halides, CnTAX) and anionic (sodium dodecylsulfate, SDS) model surfactants. A careful anal. of the spectra yields quant. information on the hydration of the formed micelles as well as on their size and on the surface diffusion of the bound counterions. The results are not only self-consistent but can be directly linked to data obtained with other methods. Whereas the surface of SDS micelles is strongly hydrophilic with adsorbed counterions generally sepd. by a layer of water mols., the surface of CnTAX micelles is essentially hydrophobic and bound halide ions are directly attached.
|Institutions:||Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz|
|Keywords:||ionic micelle hydration dynamics dielec spectroscopy|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||25 May 2012 11:23|
|Last Modified:||25 May 2012 11:23|
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