Growth of Sodium Dodecyl Sulfate Micelles with Detergent Concentration
Autor: | Patrícia Maria Nassar, Frank H. Quina, Joiio B. S. Bonilha, Barney L. Bales |
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Rok vydání: | 1995 |
Předmět: |
inorganic chemicals
chemistry.chemical_classification Aggregation number Sodium Inorganic chemistry General Engineering Salt (chemistry) chemistry.chemical_element Micelle chemistry.chemical_compound chemistry Critical micelle concentration Physical and Theoretical Chemistry Counterion Sulfate Sodium dodecyl sulfate |
Zdroj: | The Journal of Physical Chemistry. 99:17028-17031 |
ISSN: | 1541-5740 0022-3654 |
DOI: | 10.1021/j100046a031 |
Popis: | Sodium alkyl sulfate micelles are predicted to grow as a power law of the total counterion salt concentration, Yaq, in the aqueous phase as follows: NA = K~(Y~~)Y, where NA is the micelle aggregation number and ~2 and y are constants which are estimated from the critical micelle concentration and the apparent degree of counterion attachment. For sodium dodecyl sulfate, NA = 162(Y,q)1/4 is predicted and is shown to be in good agreement with aggregation numbers measured by a number of techniques over a wide range of Yaq whether this quantity is varied by changing the concentrations of the detergent, the added counterion salt, or both. Values of ~2 and y are estimated for six members of the sodium alkyl sulfate family. |
Databáze: | OpenAIRE |
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