Gas transport properties of Pebax®/room temperature ionic liquid gel membranes

► Polymeric gels from Pebax® copoly(ether-amide)s and room temperature ionic liquid. ► DSC analysis identifies the interaction between the IL and the copolymer domains. ► Ionic liquids can tailor the gas transport properties of hydrophilic Pebax® membranes. ► Plasticisation leads to higher permeabilities. ► Pebax®/IL gel membranes offer perspectives for CO2/nitrogen separation.