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Viscoelastic solutions formed by worm-like micelles of amine oxide surfactant

Research Area: Uncategorized Year: 2010
Type of Publication: Article
Authors:
Journal: JOURNAL OF COLLOID AND INTERFACE SCIENCE Volume: 346
Number: 1 Pages: 100-106
Month: June
ISSN: 0021-9797
Abstract:
Formation and properties of viscoelastic wormlike aqueous micellar solutions of the zwitterionic surfactant p-dodecyloxybenzyldimethylamine oxide (pDoAO) were studied Semi-dilute aqueous solutions of pDoAO show a sharp increase in viscosity, which exceeds 160 cST for concentrations textgreater50 mM, leading to viscoelastic solutions. Viscoelasticity relates to the surfactant charge type In fact this viscoelastic system reverses to fluid when acid is added (pH tant concentration increases and viscoelastic solutions form as micelles become entangled The micellar diameter as calculated by different techniques is about 5 nm (C) 2010 Elsevier Inc. All rights reserved
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