Ionic Liquid-in-Oil Microemulsions

Abstract

Phase stability and small-angle neutron scattering (SANS) data show that surfactant-stabilized nanodomains of a typical ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF4]) may be dispersed by the nonionic surfactant Triton-X100 in cyclohexane. Analyses of these SANS data are consistent with the formation of ionic liquid-in-oil microemulsion droplets.

Ionic Liquids in Microemulsions—A Concept To Extend the Conventional Thermal Stability Range of Microemulsions

“…92,157,158,159,160,161 Microemulsions are far away from ideal diluted solutions as the surfactant concentration is very high. In most cases SAS spectra of microemulsions exhibit a single broad scattering peak.…”

Development of Novel Ionic Liquid-Based Microemulsion Formulation for Dermal Delivery of 5-Fluorouracil

“…MEs are thermodynamically stable isotropic mixtures of polar, nonpolar, and amphiphilic phase, which provide unique advantages like nanosized aggregates, pharmacodynamic stability, enhanced drug solubilization, and ease of preparation (10,11). Depending on the polarity, ILs can be employed to prepare ionic liquid in oil (IL/ o) (12,13) or ionic liquid in water (14,15) type of MEs.…”

The effect of water on the microstructure and properties of benzene/[bmim][AOT]/[bmim][BF4] microemulsions

“…28 Smallangle neutron scattering (SANS) was used to investigate the [bmim] [BF 4 ]/Triton X-100/cyclohexane microemulsion, and a swelling behavior consistent with water-in-oil (W/O) microemulsions was observed. 10 In addition, Seth and co-workers published a series of reports on solvent and rotational relaxation of coumarin fluorescence probes in various IL-containing microemulsions or micellar solutions. 29,30 The self-assembled structures of surfactants with ILs have shown different advantages over the traditional ones notably in the preparation of nanostructures.…”