caa a22 4500 605490155 CHVBK 20210128100503.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1134/S1061933X15020118 doi (NATIONALLICENCE)springer-10.1134/S1061933X15020118 Diffusion coefficients and viscosities of aqueous solutions of alkyltrimethylammonium bromides [Elektronische Daten] [T. Movchan, A. Shchekin, I. Soboleva, N. Khlebunova, E. Plotnikova, A. Rusanov] Dynamic light scattering and capillary viscometry have been employed to study aqueous micellar solutions of nonionic (pentaoxyethylene dodecyl ether) and ionic (decyl-, dodecyl-, and tetradecyltrimethyammonium bromides) surfactants in a wide concentration range covering the first and second critical micelle concentrations (CMC1 and CMC2, respectively). The concentration curve for the diffusion coefficient of the nonionic surfactant has been shown to correspond to a monotonically decreasing function. The diffusion coefficients of the ionic surfactants pass through maxima above CMC1. As the alkyl chain length increases, the slopes of the concentration curves rise in the range of the linear growth in the diffusion coefficient, while the values of the maxima increase, their positions shifting toward lower concentrations. The concentration dependences of the diffusion coefficients have been explained based on their relation to activity coefficients. Pleiades Publishing, Ltd., 2015 Movchan T. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Shchekin A. St. Petersburg State University, Ul'yanovskaya ul. 1, 198504, Petrodvorets, St. Petersburg, Russia aut Soboleva I. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Khlebunova N. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Plotnikova E. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Rusanov A. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut Colloid Journal Pleiades Publishing 77/2(2015-03-01), 179-185 1061-933X 77:2<179 2015 77 10595 https://doi.org/10.1134/S1061933X15020118 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061933X15020118 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Movchan T. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Shchekin A. St. Petersburg State University, Ul'yanovskaya ul. 1, 198504, Petrodvorets, St. Petersburg, Russia aut NATIONALLICENCE 700 1- Soboleva I. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Khlebunova N. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Plotnikova E. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 700 1- Rusanov A. Frumkin Institute of Physical Chemistry and electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, 119071, Moscow, Russia aut NATIONALLICENCE 773 0- Colloid Journal Pleiades Publishing 77/2(2015-03-01), 179-185 1061-933X 77:2<179 2015 77 10595