. 2023 Jul 17;9(8):e18344. doi: 10.1016/j.heliyon.2023.e18344

Table 2.

Physicochemical parameters with varying amine rations (“QP/B series”).

Membranes	σ (g/g)	v (g/g)	δ (μm)	S.D. (%)	IEC (mmol/g)^a	FCD (mmol/g H₂O)	ε	λ
QP/A-06^b	0.6	0.5	133	60.91	1.76	2.89	0.54	19.23
QP/B-01	0.6	2.6	158	78.0	1.79	2.29	0.60	24.21
QP/B-02	0.6	3.4	182	77.6	1.78	2.29	0.60	24.22
QP/B-03	0.6	4.2	126	80.42	1.83	2.28	0.61	24.41
QP/B-04	0.6	5.2	136	83.63	2.33	2.79	0.62	19.94

Dry membrane base-weight, for all PAN/QPECH AEMs equal to 1.945 g/cm.² average.

QP/A-06 serves as the starting point for variation in amine ratios.