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SUMMARY:Self-Assembly in Deep Eutectic Solvents - Professor Karen Edler\, 
 University of Bath
DTSTART:20190516T103000Z
DTEND:20190516T113000Z
UID:TALK118345@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:Deep eutectic solvents (DES) are hydrogen-bonded liquids obtai
 ned through the complexation of a halide salt with a hydrogen bond donor\,
  enabling solvent properties to be tuned for particular properties\, inclu
 ding low toxicity and sustainability. The hydrogen bonding network\, like 
 that in water\, allows self-assembly of amphiphiles to occur in these solv
 ents\, with potential applications in templating of nanostructured materia
 ls. We are undertaking a systematic study to correlate the unique hydrogen
 -bonded nanostructure of DES with amphiphile aggregation behaviour. We use
  small and wide angle X-ray and neutron scattering to probe solvent struct
 ures\, micelle size and shape and interfacial adsorption. DES offer contro
 l over micelle morphology\, as the solvent can be tuned to be interacting 
 or non-interacting with the surfactant\, altering micelle shape. We find m
 orphology transitions in the phase diagram of common surfactants in DES th
 at are not found in other pure solvents. This presentation will discuss th
 ese unusual and interesting structures and postulate an explanation in ter
 ms of the interactions between the surfactant headgroups and their interac
 tions with both solvent components and counterions.\n
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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