Cationic polymerization is a chain growth process where the active center is a cation, typically initiated by protonic acids, Lewis acids, or carbocationic species. This technique is instrumental in producing polymers with controlled architecture and functional groups, which are essential in water treatment chemistry. At Feymer, we employ state-of-the-art cationic polymerization technology to manufacture high-performance cationic polyacrylamides (CPAMs) and other copolymers that serve as effective flocculants, coagulants, and retention aids. The science behind our products involves the co-polymerization of acrylamide with cationic monomers such as acryloyloxyethyltrimethyl ammonium chloride (DAC) or methacryloyloxyethyltrimethyl ammonium chloride (DMC). The resulting polymer chains carry positive charges that neutralize the negative surface charges of suspended solids and colloidal particles in water.