CTAB aggregation in aqueous solutions of ammonium based ionic liquids; conductimetric studies

被引:107
作者
Modaressi, Ali
Sifaoui, Hocine
Grzesiak, Beata
Solimando, Roland
Domanska, Urszula
Rogalski, Marek
机构
[1] Univ Metz, Lab Chim & Applicat, F-57078 Metz 03, France
[2] USTHB, Fac Chim, Lab Thermodynam & Modelisat Mol, Algiers, Algeria
[3] Warsaw Univ Technol, Div Phys Chem, PL-00664 Warsaw, Poland
[4] Inst Natl Polytech Lorraine, Ecole Natl Super Ind Chim, Lab Thermodynam Milieux Polyphases, F-54001 Nancy, France
关键词
ionic liquids; micelles; surfactants; critical micelle concentration; electrical conductivity;
D O I
10.1016/j.colsurfa.2006.09.031
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The electrical conductivity/concentration data of aqueous solutions of n-hexadecyl-trimethylammonium bromide (CTAB), an cationic surfactant, with two ammonium based ionic liquids propyl-(2-hydroxyethyl)-dimethyl- ammonium bromide, (C3Br), butyl-(2-hydroxyethyl)-dimethylammonium bromide, (C4Br) of high melting points (> 373 K) were determined in the temperature range 298.15-328.15 K. These data were used to determining the critical micelle concentration (CMC) in function of concentration and temperature. The two ionic liquids and the surfactant have the same anion and the ammonium based cation. The influence of ionic liquids on the micellisation process of the CTAB is discussed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:104 / 108
页数:5
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