Study on synthesis and flocculation efficiency of polydimethyldiall-ylammonium chloride

By the reaction of allyl chloride with dimethylammonium in the solution of strong alkali,dimethylallylammonium(tertiary amine) formed. The tertiary amine was separated and added along with allyl chloride to acetone, then the dimethyldiallylammonium cheoride crystallized out. The rate of output was 75%. The monomers were then polymerized in the presence of a composite initiator, the molecular weight of the obtained polymer is 99 4×10\+4. The optimum dosage in jar test was below 1?ppm. If the polymer is used along with Al\-2(SO\-4)\-3 as a flocculant for water treatment, higher efficiency of flocculation will be achieved.