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

Table 5

Results of permselectivity for two-layer AEMs differing in surface layer type and extraction treatment.

Surface on membrane	Extracting solvent	Permselectivity (%)
1	Chloroform	2.6
	Water	66.3
	Tetrahydrofuran	73.2
	Toluene	80.4
2	Chloroform	1.1
	Water	67.4
	Tetrahydrofuran	84.5
	Toluene	76.9