Stability of Foam Films of Oppositely Charged Polyelectrolyte/Surfactant Mixtures: Effect of Isoelectric Point

2011 ◽  
Vol 115 (49) ◽  
pp. 14475-14483 ◽  
Author(s):  
Nora Kristen-Hochrein ◽  
André Laschewsky ◽  
Reinhard Miller ◽  
Regine von Klitzing
Keyword(s):  
Isoelectric Point ◽  
Surfactant Mixtures ◽  
Foam Films ◽  
Oppositely Charged

Foam Films from Oppositely Charged Polyelectolyte/Surfactant Mixtures: Effect of Polyelectrolyte and Surfactant Hydrophobicity on Film Stability

Langmuir ◽  
2010 ◽  
Vol 26 (12) ◽  
pp. 9321-9327 ◽  
Author(s):  
Nora Kristen ◽  
Andrea Vüllings ◽  
André Laschewsky ◽  
Reinhard Miller ◽  
Regine von Klitzing
Keyword(s):  
Surfactant Mixtures ◽  
Film Stability ◽  
Foam Films ◽  
Oppositely Charged

Equilibrium and kinetically trapped aggregates in polyelectrolyte–oppositely charged surfactant mixtures

2020 ◽  
Vol 48 ◽  
pp. 91-108 ◽  
Author(s):  
Eduardo Guzmán ◽  
Laura Fernández-Peña ◽  
Francisco Ortega ◽  
Ramón G. Rubio
Keyword(s):  
Surfactant Mixtures ◽  
Oppositely Charged

Impact of Polyelectrolyte Chemistry on the Thermodynamic Stability of Oppositely Charged Macromolecule/Surfactant Mixtures

Langmuir ◽  
2016 ◽  
Vol 32 (5) ◽  
pp. 1259-1268 ◽  
Author(s):  
Katalin Bodnár ◽  
Edit Fegyver ◽  
Miklós Nagy ◽  
Róbert Mészáros
Keyword(s):  
Thermodynamic Stability ◽  
Surfactant Mixtures ◽  
Oppositely Charged

scholarly journals Impact of Adsorption Layer Properties on Drainage Behavior of Microscopic Foam Films: The Case of Cationic/Nonionic Surfactant Mixtures

2020 ◽  
Vol 4 (4) ◽  
pp. 53
Author(s):  
Dimi Arabadzhieva ◽  
Plamen Tchoukov ◽  
Elena Mileva
Keyword(s):  
Surface Tension ◽  
Adsorption Layer ◽  
Thin Liquid Film ◽  
Fine Tuning ◽  
Molar Ratio ◽  
Clear Correlation ◽  
Surfactant Mixtures ◽  
Foam Films ◽  
Foam Film ◽  
Surfactant Systems

Aqueous mixtures of cationic hexadecyltrimethylammonium chloride (CTAC) and nonionic pentaethyleneglycol monododecyl ether (C12E5) are investigated. Adsorption layer properties are systematically studied within a wide concentration range for a 1:1 molar ratio of the surfactants. Surface tension and dilatational rheology measurements are conducted by profile analysis tensiometry. The interfacial data are juxtaposed to drainage kinetics and stability results for microscopic foam films, investigated by microinterferometric thin liquid film instrumentation. The obtained results give experimental evidence of synergistic interactions in the studied solutions, as compared to the corresponding single surfactant systems. Specific runs of dynamic and equilibrium surface tension curves are registered against the total surfactant quantity; the surface dilatational elasticities for the mixtures are systematically higher. A clear correlation is established between adsorption layer performance and foam film characteristics. The maxima of the film lifetimes are well outlined, and the respective values are shifted towards lower overall concentrations. The reported results substantiate the key role of the adsorption layers, and the surface dilatational properties in particular, for foam film drainage kinetics and stability. The well-expressed synergy observed in adsorption layer and foam film properties suggests the substantial benefits of using mixed surfactant systems in the design and fine-tuning of foam systems for innovative applications.

scholarly journals New structural approach to rationalize the foam film stability of oppositely charged polyelectrolyte/surfactant mixtures

2020 ◽  
Vol 56 (6) ◽  
pp. 952-955 ◽  
Author(s):  
Martin Uhlig ◽  
Oliver Löhmann ◽  
Salomé Vargas Ruiz ◽  
Imre Varga ◽  
Regine von Klitzing ◽  
...  
Keyword(s):  
Structural Data ◽  
Structural Approach ◽  
Neutron Reflectometry ◽  
Surfactant Mixtures ◽  
Film Stability ◽  
Foam Film ◽  
First Time ◽  
Oppositely Charged

The foam film stability of polyelectrolyte/surfactant mixtures is rationalized using structural data from neutron reflectometry for the first time.

Effects of oppositely charged surfactants on the stability of foam films

2011 ◽  
Vol 382 (1-3) ◽  
pp. 165-173 ◽  
Author(s):  
Nora Kristen-Hochrein ◽  
Natascha Schelero ◽  
Regine von Klitzing
Keyword(s):  
Foam Films ◽  
The Stability ◽  
Oppositely Charged
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