Cationic polyacrylamide (CPAM) is a commonly used flocculant for water treatment.The main factors affecting its flocculation performance are cationic degree and intrinsic viscosity.This study was to improve the intrinsic viscosity and cationic degree of CPAM, sodium polyacrylate was selected as the template (T), and dimethyldiallylammonium chloride (DMD) and acrylamide (AM) were used as monomers to prepare a Novel cationic polyacrylamide (TPDA) with ultraviolet (UV)-initiated template polymerization.First, single-…