Fabrication of high performance polyethersulfone UF hollow fiber membranes using amphiphilic Pluronic block copolymers as pore-forming additives

► Amphiphilic Pluronic block copolymers were used as pore-formers in PES hollow fiber fabrication. ► The preferential features of Pluronics were identified based on systematic investigation. ► PEO brush layer formed on the internal pore surface improved solute rejection. ► The as-spun hollow fiber with Pluronic F127 as an additive exhibited a PWP of 113.8 L/m2 h bar and a MWCO of 9 kDa.