Abstract
AbstractA method is presented for determining the surface compressional modulus, as a function of frequency, by the Fourier transformation of the surface tension relaxation function. Data are reported for submicellar aqueous solutions of the surfactants: dimethyldodecylphosphine oxide, sodium dioctylsulfosuccinate and heptaethylene glycol nonylphenyl ether. The method appears to be advantageous for rapidity of measurement and for the possibility to obtain data in the low frequency range for very dilute solutions.
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