Table 2 Pure Gas Permeabilities and Selectivities of Different Block Ratio PEO-b-PMA (rChal) Crosslinked Membrane.

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

Temp. (°C)

Block ratio (PEO:PMA)

N2 Permeabilities (barrer)

CO2 Permeabilities (barrer)

α(CO2/N2)

30

11:7

38.71

113.18

2.92

11:9

32.43

108.65

3.35

11:12

29.05

100.53

3.46

11:16

26.13

72.62

2.78

40

11:7

31.79

155.30

4.89

11:9

28.42

142.34

5.01

11:12

21.40

123.35

5.76

11:16

19.23

89.43

4.65

50

11:7

20.97

217.29

10.36

11:9

17.01

216.41

12.72

11:12

12.64

164.82

13.04

11:16

11.15

106.71

9.57

60

11:7

19.89

249.87

12.56

11:9

15.49

219.94

14.20

11:12

11.19

165.69

14.79

11:16

10.56

106.99

10.13

  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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