Sulfonated polysulfone supported high performance thin film composite membranes for forward osmosis

FESEM images of polyester fabric integrated thin film composite membranes of three sulfonated polysulfone blends (SPSU-0, SPSU-17, and SPSU-45). Top surfaces of membranes at 40,000×. Cross-sections of membranes at 500×. Bottom surfaces of membranes at 100×.443