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Experiments on film elasticity and surface relaxation
Author(s) -
Razouk Rashad I.,
Mysels Karol J.
Publication year - 1968
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02667115
Subject(s) - marangoni effect , surface tension , elasticity (physics) , impurity , materials science , sodium dodecyl sulfate , sulfonate , relaxation (psychology) , pulmonary surfactant , composite material , sodium , chemistry , chromatography , thermodynamics , metallurgy , physics , organic chemistry , psychology , social psychology , biochemistry
The effect of extensive purification by foaming (and foam removal) upon the surface tension, the Marangoni effect, and upon the film elasticity of solutions of sodium dodecyl sulfate and sulfonate has been studied. Evidence is presented that com‐plete purification was not obtained and that the persistence of a Marangoni effect with a long relaxation time is a sensitive test for surface impurities.