Tuning the resistance of polycarbonate membranes by plasma-induced graft surface modification

► The hydrophilicity of porous PC membranes can be adjusted. ► Long-term stable surfaces are obtained. ► The resistance of porous PC membranes for caffeine can be tuned. ► Surface-water interaction has a major impact on the membrane permeability. ► Functional coatings can be post-modified to adapt its permeability resistances.