METHOD OF PREPARING AQUEOUS SOLUTION OF DIMETHYLDIALLYLAMMONIUM CHLORIDE

FIELD: polymer precursor preparation methods. ^ SUBSTANCE: invention relates to improved method for preparing aqueous solution of dimethyldiallylammonium chloride, which can be then polymerized to produce high-efficiency polyelectrolytes applicable in chemical, petrochemical, and petroleum processing, paper-and-pulp, and other industries. Method comprises interaction of dimethylamine with allyl chloride at stirring and temperature 5-20°C for 3-4 h at dimethylamine-to-allyl chloride molar ratio 1.0:(1.01-1.05) followed by neutralization with 50% aqueous sodium chloride solution at 1:1 molar ratio, separation of water-alkali phase from organic phase to form 92-99% dimethyldiallylamine with boiling temperature 55-65°C, and mixing the latter for 4-6 h with allyl chloride at 1:1 molar ratio at 40-50°C, after which softened water is added at stirring and room temperature. ^ EFFECT: increased quality of target product and excluded presence of sodium chloride in aqueous solution of dimethyldiallylammonium chloride. ^ 4 cl