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Published in: Colloid and Polymer Science 12/2017

05-10-2017 | Original Contribution

Study of interaction between chitosan and sodium lauryl ether sulfate

Authors: Lidija Petrović, Jelena Milinković, Jadranka Fraj, Sandra Bučko, Jaroslav Katona, Ljiljana Spasojević

Published in: Colloid and Polymer Science | Issue 12/2017

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Abstract

Chitosan is a biopolymer that has many potential applications in the industry because of its unique physicochemical properties. Many of these properties depend on its ability to interact with surfactants. The purpose of this study was to investigate interactions between chitosan (Ch), a cationic polysaccharide, and sodium lauryl ether sulfate (SLES), an anionic surfactant with ethylene oxide groups in the polar part of the molecule, in aqueous solution. Changes in the Ch/SLES mixtures were monitored by turbidity, surface tension, electrophoretic mobility, and viscosity measurements. Obtained results show that electrostatic interactions that occur at low SLES concentrations were less pronounced than hydrophobic. The region of hydrophobic interactions was linearly dependent on the concentration of the polymer, so that it ends at Ch/SLES mass ratio 1:3 by forming neutral complexes, which were completely precipitated as a coacervate phase. The research also demonstrates that small variations in structure of anionic surfactant (SDS and SLES) can lead to significant differences in interactions with cationic polymer-chitosan.

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Metadata
Title
Study of interaction between chitosan and sodium lauryl ether sulfate
Authors
Lidija Petrović
Jelena Milinković
Jadranka Fraj
Sandra Bučko
Jaroslav Katona
Ljiljana Spasojević
Publication date
05-10-2017
Publisher
Springer Berlin Heidelberg
Published in
Colloid and Polymer Science / Issue 12/2017
Print ISSN: 0303-402X
Electronic ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-017-4205-7

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