“…To date, the application of PPSU was studied for the development for membranes for ultrafiltration [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ], nanofiltration [ 33 , 34 , 35 ], organic solvent nanofiltration [ 36 , 37 , 38 ], pervaporation [ 39 , 40 , 41 , 42 , 43 ], gas separation [ 44 , 45 , 46 , 47 ], membrane substrate for thin film composite membranes for forward osmosis [ 48 , 49 ], and proton-exchange membrane for fuel cells [ 50 ]. PPSU membranes were revealed to be effective in water treatment [ 33 ]: heavy metal [ 17 , 26 ], toxic dyes [ 18 , 20 ], humic acids [ 25 ] removal from aqueous solutions [ 17 , 26 ], and decontamination of arsenic from drinking water [ 21 , 22 , 23 ]. PPSU membranes were developed and investigated for pervaporation separation of biobutanol form ABE mixture […”