Table 1 Pure Gas Permeabilities and Selectivities of PEO-b-PMA (rChal) (11:7) Un-crosslinked Compared with Crosslinked Membrane.

From: Probe Into the Influence of Crosslinking on CO2 Permeation of Membranes

Temp (°C)

Condition

N2 Permeabilities (barrer)

CO2 Permeabilities (barrer)

α(CO2/N2)

30

Un-crosslinked

84.40

138.01

1.63

Crosslinked

38.71

113.18

2.92

40

Un-crosslinked

85.16

178.91

2.10

Crosslinked

31.79

155.30

4.89

50

Un-crosslinked

88.01

229.14

2.61

Crosslinked

20.97

217.29

10.36

60

Un-crosslinked

90.67

250.46

2.76

Crosslinked

19.89

249.87

12.56

  1. Permeances at 1 × 106 (cm·s−1·cmHg−1), were calculated by dividing the observed flow rate by the area of the membrane (2.84 cm2) and the pressure gradient (10 psi) employed, using porous Al2O3 membrane supports. The values were obtained from 10 independent measurements and the mean value and standard deviations were determined. The error in each case was <5%. The membrane PEO-b-PMA (rChal) showed no difference of gas permeation in humid environment.
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