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Adsorption of ionic surfactants at the air-water interface: The gap between theory and experiment.
Advances in Colloid and Interface Science ( IF 15.9 ) Pub Date : 2019-10-31 , DOI: 10.1016/j.cis.2019.102052 Mengsu Peng 1 , Anh V Nguyen 1
Advances in Colloid and Interface Science ( IF 15.9 ) Pub Date : 2019-10-31 , DOI: 10.1016/j.cis.2019.102052 Mengsu Peng 1 , Anh V Nguyen 1
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We review the experimental and theoretical results for the adsorption and structure of ionic surfactants at the air-liquid interface. The results show that ionic surfactants form thick adsorption layers at the interfacial region. We also review several adsorption models for ionic surfactants, which become increasingly complex as they capture the many features of adsorption layers. However, the adsorption layer structures determined by experiments and the structures predicted by models do not match because most models assume very thin adsorption layers. We show the discrepancies between measured and predicted surface properties and provide several explanations. We conclude that the mismatch in the adsorption layer structure provided by experiments and the structure provided by adsorption models is the main reason for the discrepancies in the surface excess and the surface potential.
中文翻译：
离子表面活性剂在空气-水界面的吸附：理论与实验之间的差距。
我们回顾了离子表面活性剂在气液界面处的吸附和结构的实验和理论结果。结果表明，离子型表面活性剂在界面区域形成较厚的吸附层。我们还将回顾几种离子型表面活性剂的吸附模型，由于它们捕获了吸附层的许多特征，因此它们变得越来越复杂。但是，通过实验确定的吸附层结构与通过模型预测的结构并不匹配，因为大多数模型都假定吸附层非常薄。我们显示了实测和预测的表面性能之间的差异，并提供了几种解释。
更新日期：2019-11-01
中文翻译：
离子表面活性剂在空气-水界面的吸附：理论与实验之间的差距。
我们回顾了离子表面活性剂在气液界面处的吸附和结构的实验和理论结果。结果表明，离子型表面活性剂在界面区域形成较厚的吸附层。我们还将回顾几种离子型表面活性剂的吸附模型，由于它们捕获了吸附层的许多特征，因此它们变得越来越复杂。但是，通过实验确定的吸附层结构与通过模型预测的结构并不匹配，因为大多数模型都假定吸附层非常薄。我们显示了实测和预测的表面性能之间的差异，并提供了几种解释。
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