Table 2.

Effect of Different Alkali Species and Material Form of PAN Polymer on Ion-Exchange Capacity

Experiment set	Material	Reagent	Time (min)	Ion-exchange capacity (meq/dry gm) (Mean±SD)	Number of repeats
Control	ES fibers	Water	30 min	0.03±0.04	3
Hydrolyzed	ES fibers	2 N NaOH	30 min	1.96±0.89	4
Hydrolyzed	ES fibers	2 N KOH	30 min	2.39±0.87	4
Hydrolyzed	Micron-sized Fibers	2 N NaOH	30 min	0.36±0.06	3

ES, Electrospun fibers (Average diameter: 720 nm), Micron-sized fibers (Average diameter: 20 μm). All experiments were conducted at 70°C.