Micelle structure and molecular self-diffusion in isononylphenol ethoxylate-water systems

Abstract

The structure and dynamic properties of micellar solutions of nonionic surfactants of a series of isononylphenol ethoxylates, C9H 19C6H4O(C2H4O) nH (where n = 6,8,9,10, and 12), were studied by NMR diffusometry, dynamic light scattering, and viscosimetry. The sizes of the micelles were determined for different surfactants and at different surfactant concentrations. The numbers of water molecules bound by a micelle and by one oxyethylene group of the surfactant were estimated. Copyright © 2013 John Wiley & Sons, Ltd. Sizes of micelles of surfactants C9H19C 6H4O(C2H4O)nH (where n = 6,8,9,10 and 12) were determined for different surfactant aqueous concentrations by NMR-diffusometry, dynamic light scattering and viscosimetry. Numbers of water molecules bound by a micelle and by one oxyethylene group of the surfactant were estimated. Copyright © 2013 John Wiley & Sons, Ltd.