Structure and dynamics of concentrated micellar solutions of sodium dodecyl sulfate
- Autores: Gubaidullin A.1, Litvinov I.1, Samigullina A.1, Zueva O.2, Rukhlov V.2, Idiyatullin B.3, Zuev Y.3
-
Afiliações:
- A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
- Kazan State Power Engineering University
- Kazan Institute of Biochemistry and Biophysics, Kazan Scientific Center of the Russian Academy of Sciences
- Edição: Volume 65, Nº 1 (2016)
- Páginas: 158-166
- Seção: Full Articles
- URL: https://journals.rcsi.science/1066-5285/article/view/236861
- DOI: https://doi.org/10.1007/s11172-016-1278-2
- ID: 236861
Citar
Resumo
In micellar solutions of sodium dodecyl sulfate, as the concentration of surfactants increases, the spheroid shape of the micelles changes from almost spherical to ellipsoidal with increasing ratio of half-axes ratio, and further the transition to cylindrical micelles occurs. The micelles in an aqueous solution can directly contact (compact aggregates) or be separated from one another by layers of intermicellar medium (periodical colloid structures). In the latter case, the thickness of the layer can significantly exceed the micelle size, and then no mutual correlation in micelle arrangement is observed. According to the data of small-angle X-ray scattering, the relationship between the surfactant concentration and formation of “quasi-crystalline” micellar structure is nonlinear, which can be due to both micelle aggregation processes and nonuniformity of their structure. The possible influence of ordered micellar structures on the diffusion mobility of micelles is shown.
Sobre autores
A. Gubaidullin
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yufzuev@mail.ru
Rússia, 8 ul. Arbuzova, Kazan, 420088
I. Litvinov
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: litvinov@iopc.ru
Rússia, 8 ul. Arbuzova, Kazan, 420088
A. Samigullina
A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of the Russian Academy of Sciences
Email: yufzuev@mail.ru
Rússia, 8 ul. Arbuzova, Kazan, 420088
O. Zueva
Kazan State Power Engineering University
Email: yufzuev@mail.ru
Rússia, 51 ul. Krasnosel’skaya, Kazan, 420066
V. Rukhlov
Kazan State Power Engineering University
Email: yufzuev@mail.ru
Rússia, 51 ul. Krasnosel’skaya, Kazan, 420066
B. Idiyatullin
Kazan Institute of Biochemistry and Biophysics, Kazan Scientific Center of the Russian Academy of Sciences
Email: yufzuev@mail.ru
Rússia, 2/31 ul. Lobachevskogo, Kazan, 420111
Yu. Zuev
Kazan Institute of Biochemistry and Biophysics, Kazan Scientific Center of the Russian Academy of Sciences
Autor responsável pela correspondência
Email: yufzuev@mail.ru
Rússia, 2/31 ul. Lobachevskogo, Kazan, 420111