Kovalchuk V I, Aksenenko E V, Schneck E, Miller R
Institute of Biocolloid Chemistry, National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine.
Institute of Colloid Chemistry and Chemistry of Water, National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine.
Langmuir. 2023 Mar 14;39(10):3537-3545. doi: 10.1021/acs.langmuir.2c03511. Epub 2023 Feb 28.
During recent years, great progress has been made in understanding the adsorption of surfactants at liquid interfaces. In addition to tensiometry, new efficient methodologies have been developed, in particular interfacial selective optical methods which allow direct access to the adsorbed amounts and interfacial layer compositions. In addition to these new experimental tools, the thermodynamic description by equations of state now allows one to provide a quantitative picture of surfactant interfacial layers. This is most notable for surfactant layers at water/oil interfaces. Additional knowledge about the structure of interfacial layers was gained through different types of molecular modeling. Improved interrelationships between these three aspects are the challenges for current and future work. Particular attention must be paid to dilational interfacial rheology studies, as these mechanical quantities are much more sensitive to small changes in the interfacial composition and structure.
近年来，在理解表面活性剂在液体界面的吸附方面取得了巨大进展。除了张力测定法外，还开发了新的高效方法，特别是界面选择性光学方法，它可以直接获取吸附量和界面层组成。除了这些新的实验工具外，状态方程的热力学描述现在使人们能够提供表面活性剂界面层的定量图像。这在水/油界面的表面活性剂层中最为显著。通过不同类型的分子建模获得了关于界面层结构的更多知识。改善这三个方面之间的相互关系是当前和未来工作的挑战。必须特别关注扩张界面流变学研究，因为这些力学量对界面组成和结构的微小变化更为敏感。
