. 2019 Sep 26;4(15):16572–16577. doi: 10.1021/acsomega.9b02363

Table 2. Diffusivity (10^–7 cm²/s) and Solubility [10^–1 cm³ (STP)/cm³ cmHg] Coefficients, Diffusivity Selectivity (α_D) and Solubility Selectivity (α_S) for the PIM-1 Membrane and PIM-1/ZIF-8-X Composite Membranes.

	diffusivity		α_D	solubility		α_S
membranes	O₂	N₂	O₂/N₂	O₂	N₂	O₂/N₂
PIM-1	3.2	2.6	1.2	5.7	2.8	2.0
PIM-1/ZIF-8-2	3.6	2.7	1.3	4.7	2.3	2.0
PIM-1/ZIF-8-4	3.2	3.1	1.0	4.0	1.4	2.9
PIM-1/ZIF-8-6	2.2	2.6	0.8	5.4	2.0	2.7
PIM-1/ZIF-8-7	3.1	2.1	1.5	4.2	1.7	2.5
PIM-1/ZIF-8-8	3.0	3.4	0.9	4.2	1.3	3.2

Table 2. Diffusivity (10–7 cm2/s) and Solubility [10–1 cm3 (STP)/cm3 cmHg] Coefficients, Diffusivity Selectivity (αD) and Solubility Selectivity (αS) for the PIM-1 Membrane and PIM-1/ZIF-8-X Composite Membranes.