Abstract
ALTHOUGH at high surface pressures, up to about 20 dynes/cm2, films of long chain fatty acids on water form uniform monolayers, at zero surface pressure the film is no longer uniform but has been described by some authors as consisting of “islands” held together by the van der Waals forces of cohesion between the hydrocarbon chains1. An examination with an electron microscope of surface films of stearic acid prepared at a surface pressure of 3 dynes/cm2 has provided some evidence that these irregularly shaped islands exist2.
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Davies, J. T., and Rideal, E. K., in Interfacial Phenomena, second ed. (Academic Press, New York, 1963).
Ries, H. E., Proc. Amer. Petrol. Inst., Sect. 3, 152 (1962).
Sternling, C. V., and Scriven, L. E., Amer. Inst. Chem. Eng. J., 5, 514 (1959).
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MOSS, E., HIMMELBLAU, D., SCHECHTER, R. et al. Circulation within Monolayer Films on Aqueous Substrates at Low Surface Pressures. Nature 217, 349 (1968). https://doi.org/10.1038/217349a0
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DOI: https://doi.org/10.1038/217349a0
