. 2018 Oct 15;11(10):1980. doi: 10.3390/ma11101980

Table 2.

Film thickness, O₂ and CO₂ gas transmission rate (GTR) at 8, 15 and 23 °C, with the corresponding perm-selectivity ratio and GTR Activation Energy.

Sample	Thickness (μm)	O₂-GTR (cm³/m² d bar)			CO₂-GTR (cm³/m² d bar)			CO₂/O₂	CO₂/O₂	CO₂/O₂	CO₂ E_GTR (J/mol K)	O₂ E_GTR (J/mol K)
		8 °C	15 °C	23 °C	8 °C	15 °C	23 °C	8 °C	15 °C	23 °C
SA	127 ± 13 ^a	102 ± 1 ^a	118 ± 1 ^b	148 ± 2 ^c	110 ± 0 ^c	111 ± 1 ^d	222 ± 1 ^a	1.1	0.9	1.5	33 (0.8)	17 (1)
SA_0.15	111 ± 6 ^b	94 ± 1 ^c	112 ± 2 ^de	134 ± 1 ^d	99 ± 2 ^d	96 ± 1 ^f	105 ± 1 ⁱ	1.1	0.7	0.8	3 (0.4)	16 (1)
SA_0.30	110 ± 4 ^b	70 ± 1 ^f	92 ± 1 ^f	110 ± 0 ^g	99 ± 1 ^d	129 ± 1 ^b	124 ± 2 ^h	1.4	1.4	1.1	10 (0.6)	21 (1)
Pe	110 ± 5 ^b	102 ± 1 ^a	123 ± 1 ^a	159 ± 1 ^b	134 ± 2 ^a	144 ± 2 ^a	195 ± 1 ^b	1.3	1.2	1.2	−16 (0.6)	20 (1)
Pe_0.15	107 ± 1 ^bc	99 ± 2 ^ab	109 ± 1 ^e	119 ± 1 ^f	97 ±1 ^d	101 ± 1 ^e	176 ± 1 ^d	1.0	0.9	1.6	28 (0.8)	8 (1)
Pe_0.30	94 ± 9 ^c	84 ± 2 ^d	117 ± 1 ^bc	127 ± 0 ^e	66 ± 2 ^g	110 ± 1 ^d	180 ± 1 ^c	0.8	0.9	1.4	46 (1)	19 (1)
SA + Pe	101 ± 3 ^bc	98 ± 1 ^b	117 ± 1 ^bc	166 ± 1 ^a	131 ± 1 ^b	117 ± 1 ^c	173 ± 1 ^e	1.3	1.0	1.0	13 (0.5)	24 (1)
SA + Pe_0.15	104 ± 1 ^bc	75 ± 1 ^e	114 ± 4 ^cd	136 ± 1 ^d	94 ± 1 ^e	116 ± 2 ^c	165 ± 1 ^f	1.3	1.0	1.2	26 (1)	27 (0.9)
SA + Pe_0.30	104 ± 5 ^bc	84 ± 1 ^d	94 ± 3 ^f	117 ± 1 ^e	92 ± 1 ^f	116±1 ^c	150±1 ^g	1.1	1.2	1.3	23 (1)	44 (0.9)

Values with different letters within the same column differ significantly at p < 0.05 levels. Values in brackets indicate the R² parameter of the fitting curve. Samples with a present the highest value, while samples with d the lowest.