Abstract
We investigate the phase behaviours of Pluronic L62 in aqueous solution in the presence of aerosol-OT (AOT) molecules by small angle neutron scattering (SANS). The presence of AOT significantly changes the micellization phenomenon of L62 micelles in aqueous solution, including their critical micelle temperature (CMT), global size, and asphericity. The origin of these observations is attributed to the complexation between the neutral L62 surfactants and the ionic AOT molecules, which additionally provides charge to the mixed micelles: we analyse the data and extract meaningful information using the Ornstein-Zernike integral formalism. As a result, we observe that the co-micellization of L62 and AOT is very stable across a wide temperature range.
Original language | English |
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Pages (from-to) | 12524-12531 |
Number of pages | 8 |
Journal | Physical Chemistry Chemical Physics |
Volume | 22 |
Issue number | 22 |
DOIs | |
State | Published - Jun 14 2020 |
Funding
† This manuscript has been co-authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). ‡ Electronic supplementary information (ESI) available. See DOI: 10.1039/d0cp00603c The Research at Oak Ridge National Laboratory’s Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. We thank MCIU/AEI/FEDER,UE (project PGC2018-097842-B-I00) for support. The Research at Oak Ridge National Laboratory's Spallation Neutron Source was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. We thank MCIU/AEI/FEDER,UE (project PGC2018-097842-B-I00) for support.
Funders | Funder number |
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Scientific User Facilities Division | |
U.S. Department of Energy | |
Albert Ellis Institute | |
Basic Energy Sciences | |
Oak Ridge National Laboratory | |
Ministerio de Ciencia, Innovación y Universidades | |
European Regional Development Fund | PGC2018-097842-B-I00 |