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Issue 12, 2014
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Surface tension of water in the presence of perfluorocarbon vapors

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Abstract

Fluorocarbons are highly hydrophobic, biocompatible compounds with a variety of medical applications. Despite significant interest, the study of interfacial properties of fluorocarbons in aqueous systems has received limited attention. In this study, we investigate the influence of perfluoropentane and perfluorohexane vapors on the surface tension of water at room temperature. The results show a substantial decrease in the surface tension of water in the presence of perfluorocarbon vapors. In the investigated range of partial pressures up to the saturation value, a linear correlation between the surface tension and the partial pressure was found. This suggests that an adsorbed perfluorocarbon layer is formed on the surface of water. For comparison, the effect of the perfluorocarbon vapor on the surface tension of methanol was also investigated and a similar dependence was observed. Our results indicate that the stability and dynamic transitions of fluorocarbon colloids, which may be dispersed under physiological conditions as microdroplets, bubbles, or their combination, are likely affected by the composition of liquid and gas phases.

Graphical abstract: Surface tension of water in the presence of perfluorocarbon vapors

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Publication details

The article was received on 29 Aug 2013, accepted on 12 Dec 2013 and first published on 13 Dec 2013


Article type: Paper
DOI: 10.1039/C3SM52289J
Soft Matter, 2014,10, 1937-1943

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    Surface tension of water in the presence of perfluorocarbon vapors

    V. S. Chernyshev and M. Skliar, Soft Matter, 2014, 10, 1937
    DOI: 10.1039/C3SM52289J

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