Neutron Reflectometry of an Anionic Surfactant at the Solid–Liquid Interface under Shear
Published on 2017-06-19T19:35:20Z (GMT) by
Neutron reflectometry with <i>in situ</i> rheology is used to measure the shear response of an adsorbed anionic surfactant (sodium bis(2-ethylhexyl) sulfosuccinate, AOT) at the alumina–water interface. A low surfactant concentration is measured where a single bilayer adsorbs at the interface as well as a higher concentration where a multilamellar structure forms. The low concentration structure does not change with the imposed shear (oscillatory or steady). However, the lamellar phase shows a loss of structure under both steady and oscillatory shear. There are differences between the steady and oscillatory cases, which are discussed, with both showing a strong dependence on the strain amplitude.
Cite this collection
J. L. Welbourn, Rebecca; Bartholomew, Felicity; Gutfreund, Philipp; Clarke, Stuart M. (2017): Neutron Reflectometry of an Anionic Surfactant at the Solid–Liquid Interface under
Shear. ACS Publications.
Retrieved: 01:47, Jun 26, 2017 (GMT)