Abstract
OLEOPHOBIC monolayers of stearic acid on mica have been studied by means of the electron microscope. Mica was chosen as the substrate because clean surfaces, which are molecularly flat over large areas, are easily obtained by cleavage. Stearic acid was retracted from a solution in hexadecane in the manner described by Bigelow, Pickett and Zisman1 and a preshadowed carbon replica of the surface taken ; 40 per cent gold/palladium was found to be the most suitable shadowing material.
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References
Bigelow, W. C., Pickett, D. L., and Zisman, W. A., J. Coll. Sci., 1, 513 (1946).
Epstein, H. T., J. Phys. and Colloid Chem., 54, 1053 (1950).
Bigelow, W. C., Glass, E., and Zisman, W. A., J. Coll. Sci., 2, 563 (1947).
Sobotka, H., and Rosenberg, S., J. Coll. Sci., 5, 581 (1950).
Bigelow, W. C., and Brockway, L. O., J. Coll. Sci., 11, 60 (1956).
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MATHIESON, R. Electron Microscopy of Oleophobic Monolayers. Nature 183, 1803–1804 (1959). https://doi.org/10.1038/1831803a0
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DOI: https://doi.org/10.1038/1831803a0
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