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Title
Surfactant-chitosan interactions and application to emulsion stabilization
Authors
J. Desbrieres C. Bousquet and V. Babak
Received
May 6, 2010
Published
Volume 44 Issue 9 September-October
Keywords
chitosan, anionic surfactant, complex, conductivity, surface-active properties, emulsion
Abstract
Complexes obtained from the electrostatic interactions between chitosan, a cationic polysaccharide, and sodium decylsulfonate, an anionic surfactant, were characterized by their conductimetric and surface-active properties. Such surfactant/polyelectrolyte complexes (SPECs) present very interesting surface-active properties, even at very low surfactant concentrations (much lower than the critical micellar concentration, CMC, of pure surfactant), influencing either surface tension or viscoelastic properties of the adsorbed layers. This allows their use as emulsion stabilizers, while the very low surfactant concentration makes them potential candidates for cosmetic applications.
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