Table 3.

Proton conductivity as a function of temperature and calculated activation energy (E_a).

Copolymers	IECw(dry) (meq/g)	IECv(wet)a (meq/cm3)	Proton conductivity (mS/cm)				Eab (kJ/mol)
			25°C	50°C	60°C	80°C
TRP-BP 1:1-35	1.27 ± 0.01	1.36 ± 0.07	69 ± 1	72 ± 2	75 ± 2	82 ± 2	2.68
TRP-BP 2:1-35	1.23 ± 0.01	1.35 ± 0.07	66 ± 2	72 ± 1	75 ± 1	82 ± 2	3.41
TRP-BP 1:2-40	1.46 ± 0.01	1.22 ± 0.06	76 ± 6	83 ± 3	85 ± 6	91 ± 8	3.37
TRP-BP 1:1-40	1.43 ± 0.01	1.33 ± 0.08	70 ± 6	92 ± 5	100 ± 3	108 ± 4	7.68
TRP-BP 1:2-50	1.76 ± 0.02	0.73 ± 0.07	58 ± 1	83 ± 4	88 ± 6	94 ± 10	7.88
TRP-BP 1:1-50	1.70 ± 0.02	0.63 ± 0.04	51 ± 3	72 ± 2	80 ± 3	83 ± 3	8.81
PENT-BP 1:2-40	1.35 ± 0.01	1.55 ± 0.08	40 ± 4	61 ± 1	71 ± 1	80 ± 6	11.4
PENT-BP 1:1-40	1.27 ± 0.01	1.49 ± 0.06	30 ± 3	49 ± 8	59 ± 2	73 ± 4	14.4
PENT-BP 1:2-50	1.60 ± 0.01	1.29 ± 0.13	88 ± 6	111 ± 2	117 ± 7	133 ± 6	6.56
BPSH 30	1.25 ± 0.01	1.53 ± 0.05	43 ± 6	59 ± 3	75 ± 5	78 ± 3	10.1
BPSH 40	1.59 ± 0.02	1.54 ± 0.06	78 ± 3	109 ± 10	115 ± 14	132 ± 10	8.36
BPSH 50	1.96 ± 0.02	1.41 ± 0.07	109 ± 5	118 ± 3	127 ± 4	139 ± 8	3.88

^aCalculated using Equation (5).

^bCalculated using Equation (7).