Stubenrauch C, Fainerman V B, Aksenenko E V, Miller R
Institut für Physikalische Chemie, Universität zu Köln, Luxemburger Strasse 116, D-50939 Köln, Germany.
J Phys Chem B. 2005 Feb 3;109(4):1505-9. doi: 10.1021/jp046525l.
The dynamic and equilibrium surface tensions of C(n)TAB solutions for n = 12, 14, and 16 are studied using ring and bubble pressure tensiometry. Together with respective literature values, including neutron reflectivity and dilational surface rheology measurements, the experimental data are analyzed on the basis of two theoretical models, the Frumkin model and a modified reorientation model that takes into account an intrinsic compressibility of adsorbed surfactant molecules. It turns out that this new reorientation model, earlier applied to nonionic surfactant adsorption layers, is also applicable to ionic surfactants and superior to the Frumkin isotherm. All adsorption properties of one particular surfactant can be described by a single set of model parameters.
使用环法和气泡压力张力测定法研究了碳链长度为12、14和16的烷基三甲基溴化铵（C(n)TAB）溶液的动态表面张力和平衡表面张力。结合包括中子反射率和扩张表面流变学测量在内的各自文献值，基于两个理论模型，即弗鲁姆金模型和考虑吸附表面活性剂分子固有压缩性的修正重排模型，对实验数据进行了分析。结果表明，这种先前应用于非离子表面活性剂吸附层的新重排模型也适用于离子表面活性剂，并且优于弗鲁姆金等温线。一种特定表面活性剂的所有吸附特性都可以用一组单一的模型参数来描述。
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