Preparation of Two-Layer Anion-Exchange Poly(ethersulfone) Based Membrane: Effect of Surface Modification

Table 4

Ion-exchange capacity, areal resistance, specific resistance, and membrane thickness averages for the prepared surface modified PES membranes before and after amination.

Surface on membrane	Extracting solvent	Two-layer membrane without amination			AEM membrane
		Thickness (m)	(Ω⋅cm^2)	(Ω⋅cm)	Thickness (m)	(Ω⋅cm^2)	(Ω⋅cm)
1	Chloroform	306	143.93	3378.70	337	2.43	90.00
	Water	283	144.39	5102.20	366	13.48	368.20
	THF	284	144.38	5083.90	386	5.2	179.00
	Toluene	307	51.04	1254.00	575	11.69	346.90
2	Chloroform	307	25.87	842.80	338	0.88	53.00
	Water	307	143.78	4683.50	443	3.53	79.60
	THF	325	24.92	797.80	436	1.92	49.00
	Toluene	306	144.05	4707.70	445	1.66	38.10
	PES membrane without modification	196	2.53	129.10