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

Table 2

Effect of extraction treatment using various solvents on the amount of extracted compounds.

Surface on membrane	Extracting solvent	Surface on AEM PES membrane after extraction (wt.%)
1	Chloroform	32.99
	Water	72.18
	Tetrahydrofuran	63.32
	Toluene	64.05
2	Chloroform	28.16
	Water	73.94
	Tetrahydrofuran	56.75
	Toluene	46.17