Research Highlight

Effective functionalization of porous polymer fillers to enhance the CO₂/N₂ separation performance of mixed-matrix membranes

Prof. Bae’s group has developed a series of porous organic polymers possessing various functional groups, which were incorporated into an in-house polyimide to fabricate mixed-matrix membranes for CO₂/N₂ separation. Their systematic study revealed that both the structural properties and chemical functionality should be optimized together to obtained an ideal filler material for CO₂-selective mixed-matrix membranes. The optimized membrane showed ultrahigh CO₂ permeability of 2988 Barrers (158% higher than that of a pure polymer membrane) with a decent enhancement of the CO₂/N₂ selectivity....read more