Table 2.
O2 diffusivities (108·cm2·s−1) and O2/N2 diffusivity selectivities of the MMMs at different temperatures.
| Membrane | T = 298 K | T = 313 K | T = 323 K | T = 333 K | ||||
|---|---|---|---|---|---|---|---|---|
| D (O2) | αD (O2/N2) | P(O2) | αD (O2/N2) | P (O2) | αD (O2/N2) | P (O2) | αD (O2/N2) | |
| PTMSP | 5.47 ± 1.72 | 0.11 ± 0.04 | 3.50 ± 0.35 | 0.18 ± 0.03 | 3.46 ± 1.54 | 0.26 ± 0.09 | 3.40 ± 0.53 | 0.31 ± 0.06 |
| 5 wt % CHA/PTMSP | 1.48 ± 0.28 | 1.83 ± 0.43 | 1.90 ± 0.07 | 1.84 ± 0.23 | 3.35 ± 0.95 | 2.86 ± 0.87 | 6.11 ± 1.87 | 4.30 ± 1.50 |
| 5 wt % LTA5/PTMSP | 3.14 ± 0.82 | 1.84 ± 0.67 | 3.58 ± 0.57 | 1.79 ± 0.39 | 3.85 ± 0.11 | 0.98 ± 0.41 | 4.33 ± 1.02 | 1.04 ± 0.48 |
| 5 wt % Rho/PTMSP | 1.17 ±0.13 | 0.37 ± 0.14 | 1.25 ± 0.14 | 0.51 ± 0.18 | 1.65 ± 0.22 | 0.74 ± 0.26 | 4.31 ± 1.15 | 1.02 ± 0.50 |
| 20 wt % LTA1/PTMSP | 2.78 ± 1.01 | 1.84 ± 1.03 | 3.00 ± 1.08 | 1.90 ± 1.04 | 4.08 ± 1.83 | 2.40 ± 1.40 | 7.45 ± 3.53 | 3.74 ± 2.12 |