GEOMETRY OF MICELLES OF THE POLY(OXYETHYLENE) NONIONIC SURFACTANTS C16E6 AND C16E8 IN THE PRESENCE OF ELECTROLYTE

Small-angle neutron scattering (SANS) has been used to investigate the geometry of micelles of the poly(oxyethylene) nonionic surfactants C16E6 and C16E8 aligned in situ in a shear flow, in the presence of 'salting in' or 'salting out' electrolyte. With increasing temperature, a...

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Bibliographic Details
Main Authors: Cummins, P, Staples, E, Penfold, J, Heenan, R
Format: Journal article
Language:English
Published: 1989
Description
Summary:Small-angle neutron scattering (SANS) has been used to investigate the geometry of micelles of the poly(oxyethylene) nonionic surfactants C16E6 and C16E8 aligned in situ in a shear flow, in the presence of 'salting in' or 'salting out' electrolyte. With increasing temperature, a growth of rodlike micelles and a subsequent reduction in effective rod length are observed. This evolution of micelle rod length, accompanied by subtle changes in rod flexibility, is attributed to changes in intramicelle ethylene oxide (EO)-ethylene oxide interactions.