共 21 条
Composition of mixed anionic/nonionic surfactant micelles
被引:23
作者:
Akbas, H
[1
]
Iscan, M
[1
]
Sidim, T
[1
]
机构:
[1] Trakya Univ, Fac Sci & Letters, Dept Chem, TR-22030 Edirne, Turkey
关键词:
anionic/nonionic surfactant;
critical micelle concentration;
interaction parameter;
mixed micelle;
regular solution theory;
surface tension;
D O I:
10.1007/s11743-000-0117-0
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
A proposed method of determining the composition of mixed micelles in equilibrium with monomer of known composition is described. The systems were sodium dodecyl sulfate-polyoxyethylene 23 lauryl ether (Brij 35) in water and in 0.1 M sodium chloride solution at 25 degrees C. This technique applies the Gibbs-Duhem equation to the mixed micelle, which is treated as a pseudophase. This proposed methodology, which needs only critical micelle concentration data as a function of monomer composition, is applied to an anionic/nonionic surfactant pair. The calculated monomer-micelle equilibrium is found to be very similar to the much-used regular solution for nonideal systems.
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页码:77 / 80
页数:4
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