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

Table 3

The results of water content and IEC of anion-exchange hybrid PES membranes.

Surface on membrane	Extracting solvent	Water content (wt.%)	IEC (meq/g dry matter)
1	Chloroform	2.4	0.79
	Water	9.4	1.59
	Tetrahydrofuran	5.1	1.22
	Toluene	5.1	1.6
2	Chloroform	4.6	0.8
	Water	7.4	1.84
	Tetrahydrofuran	13.2	1.63
	Toluene	11.2	2.1