Thermodynamic properties of anionic surfactant/polymer/water systems with respect to polymer-surfactant interactions and salting-effect of surfactant on polymer in aqueous solutions

2016 ◽  
Vol 425 ◽  
pp. 411-420 ◽  
Author(s):  
Rahmat Sadeghi ◽  
Saivan Solaimani ◽  
Nosaibah Ebrahimi
Keyword(s):  
Thermodynamic Properties ◽  
Aqueous Solutions ◽  
Anionic Surfactant ◽  
Water Systems ◽  
Surfactant Interactions ◽  
Polymer Surfactant

Heat capacities and volumes in aqueous polymer and polymer–surfactant solutions

1987 ◽  
Vol 65 (5) ◽  
pp. 990-995 ◽  
Author(s):  
Gérald Perron ◽  
Josée Francoeur ◽  
Jacques E. Desnoyers ◽  
Jan C. T. Kwak
Keyword(s):  
Thermodynamic Properties ◽  
Chain Length ◽  
Polymer Concentration ◽  
Heat Capacities ◽  
Aqueous Mixtures ◽  
Alkyltrimethylammonium Bromides ◽  
Aqueous Polymer ◽  
Surfactant Interactions ◽  
Polymer Surfactant ◽  
Polymer Interaction

The apparent molar volumes and heat capacities of aqueous mixtures of neutral polymers and ionic surfactants were measured at 25 °C. The polymers chosen were poly(vinylpyrrolidone) (PVP) and poly(ethyleneoxide) (PEO) and the surfactants were the C8, C10, and C12 homologs of sodium alkylsulfates and the C10, C12, and C16 homologs of alkyltrimethylammonium bromides. The polymer–surfactant interactions depend on the nature of both components and on the chain length of the surfactant. The thermodynamic properties of the cationic surfactants are essentially the same in the absence and presence of polymer indicating little surfactant–polymer interaction. On the other hand, the thermodynamic properties of anionic surfactants are shifted, upon the addition of polymers, in the direction of enhanced hydrophobic association. The effect increases with the surfactant chain length and with the polymer concentration. The effect is larger with PVP than with PEO.

Behavior of the water/vapor interface of chitosan solutions with an anionic surfactant: effect of polymer–surfactant interactions

2020 ◽  
Vol 22 (40) ◽  
pp. 23360-23373
Author(s):  
Andrew Akanno ◽  
Eduardo Guzmán ◽  
Francisco Ortega ◽  
Ramón G. Rubio
Keyword(s):  
Water Vapor ◽  
Anionic Surfactant ◽  
Surfactant Mixtures ◽  
Vapor Interface ◽  
P Adsorption ◽  
Surfactant Effect ◽  
Surfactant Interactions ◽  
Polymer Surfactant ◽  
Oppositely Charged

Adsorption of chitosan–sodium laureth sulfate mixtures at the water/vapor interface appears very different to that of other oppositely charged polyelectrolyte–surfactant mixtures.

Raman studies of cation-surfactant interactions in alkylpolyoxyethylene surfactant aqueous solutions

1991 ◽  
Vol 22 (3) ◽  
pp. 183-186 ◽  
Author(s):  
Diana C. W. Siew ◽  
Ralph P. Cooney ◽  
Michael J. Taylor
Keyword(s):  
Aqueous Solutions ◽  
Surfactant Interactions
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