Tailored ionic liquid-based surfactants for the formation of microemulsions with water and a hydrophobic ionic liquid

Abstract

Microemulsions (μe) with water and a hydrophobic ionic liquid (IL) usually require 45–60 wt% surfactant to solubilize equal amounts of water and IL. To increase the efficiency we designed a new class of surfactants by combining a hydrophilic but IL-ophobic carbohydrate-based part with a hydrophobic but IL-ophilic IL-based part. These surfactants allow formulating microemulsions with 20 wt% surfactant only which opens up a new arena for efficient water–IL μes.