A spectrophotometric study of the ionic complexation between chitosan and anionic dyes

A spectrophotometric study of the ionic complexation between chitosan and anionic dyes Formation conditions and composition of ionic complexes in dilute mixed solutions of chitosan and anionic dyes containing two or more sulfo groups were studied. Immediately after mixing the components, only one sulfo group of the dye interacts with chitosan to form a soluble complex of stoichiometric composition. With time, the other sulfo groups of the dye also become involved in the interaction, which results in the formation of an insoluble complex in which the dye behaves as cross-linking polyvalent anion. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

A spectrophotometric study of the ionic complexation between chitosan and anionic dyes

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427213040216
Publisher site
See Article on Publisher Site

Abstract

Formation conditions and composition of ionic complexes in dilute mixed solutions of chitosan and anionic dyes containing two or more sulfo groups were studied. Immediately after mixing the components, only one sulfo group of the dye interacts with chitosan to form a soluble complex of stoichiometric composition. With time, the other sulfo groups of the dye also become involved in the interaction, which results in the formation of an insoluble complex in which the dye behaves as cross-linking polyvalent anion.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: May 23, 2013

References

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