Membrane MCM-48wt% CO2 N2 CH4 O2 Dense PSF 0 3.2 0.12 0.11 0.45 PSF 0 4.5 0.18 0.17 0.98 MCM41/PSF 10 7.6 (69%) 0.33 (83%) 0.34 (100%) 1.65 (68%) MCM41/PSF 20 8.9 (98%) 0.38 (111%) 0.40 (135%) 1.9 (94%) MCM41/PSF 40 16.1 (257%) 0.98 (444%) 1.1 (547%) 3.92 (300%)

Table 1: Gas permeabilities (Barrer) of various gases in the pure polysulfone and DMDCS-MCM-48/PSFnanocomposite membranes.