CO2 sorption and permeability in poly(ionic liquid) thin-film composite membranes

摘要

Membrane technology has received growing interest as an efficient platform to separate CO2 from gas mixtures such as natural gas and power plant emissions. This contribution describes a new methodology to prepare CO2-philic composite membranes for CO2 separation. Atomic transfer radical polymerization was used to graft poly(ionic liquid) nanolayers from regenerated cellulose thin-film composite membranes. Our long-term objective is to control the membrane selective layer thickness to the nanometer scale to produce high- selectivity, high-flux membranes.