Cooperative Binding of Sodium Dodecyl Sulfate with Chitosan in Water–Alcohol Mixtures

The formation of polymer-colloid complexes of chitosan and anionic surfactant—sodium dodecyl sulfate—in water–alcohol mixtures is studied by potentiometry using ion-selective electrodes. The influence of the nature and content of organic cosolvent (methanol, ethanol, and 2-propanol) on the parameter...

Full description

Saved in:
Bibliographic Details
Published inPolymer Science. Series A Vol. 61; no. 1; pp. 39 - 45
Main Authors Shilova, S. V., Tret’yakova, A. Ya, Barabanov, V. P.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 2019
Springer Nature B.V
Subjects
Alcohol
Aqueous solutions
Binding
Chemistry
Chemistry and Materials Science
Chitosan
Electrical measurement
Ethanol
Mathematical models
Natural Polymers
Parameters
Polymer Sciences
Potentiometric analysis
Sodium dodecyl sulfate
Stability analysis
Surfactants
Online AccessGet full text

Cover

More Information
Summary:The formation of polymer-colloid complexes of chitosan and anionic surfactant—sodium dodecyl sulfate—in water–alcohol mixtures is studied by potentiometry using ion-selective electrodes. The influence of the nature and content of organic cosolvent (methanol, ethanol, and 2-propanol) on the parameters of binding of surfactant with chitosan and the stability of complexes is discussed. The obtained data are analyzed in terms of the model of cooperative binding and pseudophase model. It is shown that addition of 10–20 vol % of ethanol and 2-propanol to aqueous solution intensifies cooperative binding of sodium dodecyl sulfate with chitosan, which leads to the decrease in the critical association concentration and increase in the parameters of cooperativity and stability of complexes.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X19010176