Evidence for Interaction with the Water Subphase As the Origin and Stabilization of Nano-Domain in Semi-Fluorinated Alkanes Monolayer at the Air/Water Interface

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• 作者：Philippe Fontaine ; Marie-Claude Faur茅 ; Lisa Bardin ; Eduardo J. M. Filipe ; Michel Goldmann
• 刊名：Langmuir
• 出版年：2014
• 出版时间：December 23, 2014
• 年：2014
• 卷：30
• 期：50
• 页码：15193-15199
• 全文大小：377K
• ISSN：1520-5827

文摘

Multilayer films of semifluorinated alkanes (SFAs) at the air/water interface were studied in situ by grazing incidence small-angle X-ray scattering (GISAXS). The results provide evidence that the first layer in contact with the water subphase, buried below the overlayers, exhibits the same supramolecular hexagonal structure that is observed in the monolayer before the collapse, at non-zero surface pressure. We believe this result clearly demonstrates the major role of the interactions between the first layer of SFAs and the water subphase to the formation of the structure.