Responsive air-water interfaces from polyelectrolytes and photo-switchable surfactant mixtures
This new proposal concerns the use of photo-switchable surfactants in oppositely charged P/S mixtures as a means to control the interfacial behavior of P/S systems for the first time. In previous work it has not been possible to tune the interactions between the polyelectrolyte and the surfactant using an external stimulus. Although electrostatic interactions dominate the P/S interaction, dispersive interactions are also relevant and can substantially shift the chemical potential for P/S binding. Using photo-switchable surfactants we are now able to modulate dispersive interaction and thus P/S binding by mak-ing use of the remote E to Z photo isomerization of the surfactants. We propose to perform neutron reflectometry experiments with photo-switchable P/S mixtures in order to obtain structural and compo-sition information both at equilibrium and during photo-switching that is otherwise inaccessible. FIGARO has the flux at low Q that can allow us to deliver us a full structural, compositional and kinet-ic study of these systems.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
B. Braunschweig; Richard A. Campbell; Javier Carrascosa-Tejedor; GLIKMAN Dana; GUTFREUND Philipp; HARDT Michael; HONNIGFORT Christian; SCHNURBUS Marco and WINNALL Samuel. (2021). Responsive air-water interfaces from polyelectrolytes and photo-switchable surfactant mixtures. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-11-1984
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