and Torlon . The functional groups of these polymeric materials strengthen the interaction between the polymeric support and the organic linkers. Polyaniline enhanced thermal stability and CO2 adsorption property of ZIF-8 . 20 wt.% ZIF-68 MMM increased CO2 permeability by 116% and 122% for CO2/N2 and CO2/CH4, respectively, for Matrimid MMMs .