Progress of recent studies for the fabrication of hydrophilic PES–polymer blend membranes.

Additive	Additive loadings (wt%)	Hydrophilic change (°)	Ref.
PEG	2	∼70 to ∼57	22
PEG/PVP	—	85 to 59	23
PVP 40K	4	71 to 47	24
PVP	5	∼63 to ∼56	25
P31R1	5	∼63 to 44	25
PVP	2	∼76 to ∼71	26
T904	5	∼63 to ∼52	25
PVP	2	∼76 to ∼71	27
PA-6	2	∼76 to 68	26
PVP	10	70 to 51	28
NPhthCs	0.9	61 to 56	29