Preparation of homogeneous grafting cellulose and partial substitution for polyethersulfone membrane material

► Methyl methacrylate was grafted onto cellulose in DMAc/LiCl successfully. ► The efficient homogeneous grafting conditions in DMAc/LiCl were confirmed. ► The grafting percentage of homogeneous grafted cellulose could reach 76%. ► The cellulose/PES blend ratio should be controlled in about 1:16. ► The grafted cellulose/PES blend membrane was a compatible system.