Partial molar volume of dodecyltrimethylammonium hydroxide in water and NaOH aqueous solutions

The partial molar volume of dodecyltrimethylammonium hydroxide in water and aqueous NaOH solutions was measured. The addition of NaOH did not affect either the micellized or the unmicellized molecules. The expansion on micellization is much larger than in dodecyltrimethylammonium bromide systems, wh...

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Bibliographic Details
Published in:Colloid and polymer science 1998-08, Vol.276 (8), p.738-742
Main Authors: MORINI, M. A, MINARDI, R. M, SCHULZ, P. C, PUIG, J. E, RODRIGUEZ, J. L
Format: Article
Language:English
Subjects:
Aqueous solutions
Chemistry
Colloidal state and disperse state
Exact sciences and technology
General and physical chemistry
Micelles. Thin films
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Summary:The partial molar volume of dodecyltrimethylammonium hydroxide in water and aqueous NaOH solutions was measured. The addition of NaOH did not affect either the micellized or the unmicellized molecules. The expansion on micellization is much larger than in dodecyltrimethylammonium bromide systems, which reflects the stronger ionization of the hydroxide surfactant micelles, when compared with that of the bromide amphiphile.[PUBLICATION ABSTRACT]
ISSN:0303-402X
1435-1536
DOI:10.1007/s003960050304