Sichao Li, Oliver S Hammond, Andrew Nelson, Liliana de Campo, Michael Moir, Carl Recsei, Manishkumar R Shimpi, Sergei Glavatskih, Georgia A Pilkington, Anja-Verena Mudring, Mark W Rutland
Three nonhalogenated ionic liquids (ILs) dissolved in 2-ethylhexyl laurate (2-EHL), a biodegradable oil, are investigated in terms of their bulk and electro-interfacial nanoscale structures using small-angle neutron scattering (SANS) and neutron reflectivity (NR). The ILs share the same trihexyl(tetradecyl)phosphonium ([P6,6,6,14 ]+ ) cation paired with different anions, bis(mandelato)borate ([BMB]- ), bis(oxalato)borate ([BOB]- ), and bis(salicylato)borate ([BScB]- ). SANS shows a high aspect ratio tubular self-assembly structure characterized by an IL core of alternating cations and anions with a 2-EHL-rich shell or corona in the bulk, the geometry of which depends upon the anion structure and concentration...
April 19, 2024: Journal of Physical Chemistry. B