| BSA | bovine serum albumin; |
| Cp | solute concentrations in the permeate; |
| Cf | solute concentrations in the feed; |
| D | pore diameter; |
| DMF | N,N-dimethylformamide; |
| DMSO | dimethylsulfoxide; |
| DSC | differential scanning calorimetry; |
| GPC | gel permeation chromatography; |
| J | liquid flux; |
| LM | low molecular weight; |
| Lp | membrane permeance; |
| m | mass of the permeate; |
| Mn | number average molecular weight; |
| Mw | weight average molecular weight; |
| MWCO | molecular weight cut-off; |
| NIPS | non-solvent induced phase separation; |
| NMP | N-methyl-2-pyrrolidone; |
| p | pressure; |
| PAN | polyacrylonitrile; |
| PEG | polyethylene glycol; |
| R | solute rejection; |
| RP-S | distance in the Hansen space between the polymer and the solvent; |
| R 0 | solubility radius for PAN; |
| S | active membrane area; |
| T | temperature; |
| t | filtration time; |
| Tg | glass transition temperature; |
| VIPS | vapor-induced phase separation; |
| δd | Hansen solubility parameter, reflecting the dispersion interaction; |
| δh | Hansen solubility parameter, reflecting the hydrogen bonds; |
| ∆p | trans-membrane pressure; |
| δp | Hansen solubility parameter, reflecting the polar interaction; |
| ρ | density of the permeate |
| γ | interfacial tension between the two liquids; |
| θ | contact angle between the membrane and the wetting liquid |