Manipulating membrane permeability and protein rejection of UV-modified polypropylene macroporous membrane

▶ UV induced reversible RAFT membrane surface modification. ▶ Ability to initiate the block grafting polymerization on membrane surface. ▶ Convenient control of grafting density and grafting chain length. ▶ Easy introduction of RAFT agent on membrane surface. ▶ BSA rejection and water flux depend strongly on the degree of grafting.