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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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THE SCHOOL OF MATERIALS SCIENCE AND ENGINEERING
GEORGIA INSTITUTE OF TECHNOLOGY
Under the provisions of the regulations for the degree
MASTER OF SCIENCE
on Wednesday, July 24, 2019
12:00 PM
in Love 295
will be held the
MASTER’S THESIS DEFENSE
for
Zhou, Boyang
"Micellar and Liquid Crystalline Phases of Surfactant/Pluronic Mixtures Studied by Sans"
Committee Members:
Prof. Alberto Fernandez Nieves , Advisor, Physics
Prof. Vladimir Tsukruk, Co-advisor MSE
Changwoo Do, Ph.D., Oak Ridge National Laboratory
Abstract:
The phase behaviours of Pluronic L62 in aqueous solutions in the presence of Aerosol-OT(AOT) molecules was investigated by small angle neutron scattering (SANS). The presence of AOT was found to significantly change the micellization phenomenon of L62 micelles in aqueous solutions, 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: The ionic groups of AOT renders the molecular charge to the aggregates of L62/AOT. On the context on molecular charge, we address the phase properties of L62/AOT complexation such as the critical micelle temperature, global size, asphericity revealed by SANS at different controlled thermodynamic conditions.
