NDLI: Thermodynamic studies on thin liquid films. II. Foam film stabilized by decyl methyl sulfoxide

Content Provider	Springer Nature Link
Author	Iyota, H. Krustev, R. Müller, H. J.
Copyright Year	2004
Abstract	Thermodynamic equations in Part I of this series were extended so as to be applicable to electrolyte mixtures and the resultant equations were applied to the experimental results of a NaCl-decyl methyl sulfoxide (DeMS) mixture. Film thickness and contact angle of the black foam film stabilized by DeMS were measured as a function of the total molality of NaCl and DeMS at constant mole fraction of DeMS in the mixture under constant disjoining pressure. Newton black film was observed only above a certain DeMS concentration and the phase transition between common black and Newton black films took place twice as NaCl concentration increased at constant DeMS concentration. The surface densities of NaCl and DeMS at the film surface and the differences in the surface densities between the adsorbed films at the film surface and bulk one coexisting at equilibrium were numerically evaluated by applying the thermodynamic equations to the film tension obtained from the contact angle. The film states and phase transitions were clarified in terms of the film thickness and surface densities.
Starting Page	1392
Ending Page	1402
Page Count	11
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	282
Issue Number	12
e-ISSN	14351536
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-05-06
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Equivalent film thickness Contact angle and film tension Phase transition in black foam film Mixture of NaCl and non-ionic surfactant Thermodynamics of thin liquid films
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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