Table 1.

Solid surface energy and mean effective pore size.

Membrane type	Contact angle (°)		Solid surface energy (mJ m−2)			Mean effective pore size (nm)
	Water	Diiodomethane	${\gamma }_{\mathrm{s}}^{\mathrm{d}}$	${\gamma }_{\mathrm{s}}^{\mathrm{p}}$	γs	rp
Pristine PSF support	84.0	25.0	46.2	1.42	47.6	3.26
PSF-G4D-1	39.6	42.4	38.4	24.8	63.2	2.71
PSF-G4D-2	38.0	51.4	33.5	28.4	61.9	2.54
PSF-G4D-3	35.0	55.3	31.3	31.5	62.8	2.23

Contact angle and the calculated solid surface energy ${\gamma }_{\mathrm{s}}$, non-polar (${\gamma }_{\mathrm{s}}^{\mathrm{d}}$) and polar part (${\gamma }_{\mathrm{s}}^{\mathrm{p}}$) surface energy, and the mean effective pore size ($r_{\mathrm{p}}$) of the pristine PSF support and PSF-G4D-1, PSF-G4D-2, and PSF-G4D-3 supports.