Random and Graft Cationic Polyacrylamide Microgel Flocculants

Graft and random microgel copolymeric flocculants of quaternary salt of N,N-dimethylaminoethylacrylate methyl chloride (DMAEA.MCQ) and acrylamide (AM) were synthesized via a free radical mechanism using the γ-radiation technique, and their performance was evaluated on a model dilute titanium dioxide (TiO2) colloid suspension. The time required to form graft and random microgel copolymers increased with increasing DMAEA.MCQ content in the …