The effect of NaOH on dodecyltrimethylammonium hydroxide aggregation in aqueous solutions |
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| Authors: | M. A. Morini R. M. Minardi P. C. Schulz J. L. Rodriguez |
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| Affiliation: | (1) Universidad Nacional del Sur Department of Chemistry and Chemical Engineering, 8000 Bahia Blanca, Argentina |
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| Abstract: | ![]()
The aggregation of dodecyltrimethylammonium hydroxide (DTAOH) in aqueous NaOH solutions was studied as a function of NaOH concentration. As in NaOH-free DTAOH aqueous solutions, the surfactant underwent a stepwise aggregation mechanism. Changes in the structure of aggregates produced an increase of the concentration at which premicellar aggregates could solubilize hydrophobic dyes and also in the concentration at which hydroxide inons join the aggregates. |
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| Keywords: | Hydroxide surfactants critical micelle concentration aggregation cationic surfactants counterion effect |
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