METHOD FOR PRODUCTION OF COPOLYMERS OF N-VINYLPYRROLIDONE WITH CROTONIC ACID SALTS

摘要

polymer production. SUBSTANCE: method consists in carrying out radiation polymerization of N- vinylpyrrolidone/crotonic acid mixture (50-87 and 13-50 mol % respectively) in aqueous solution, wherein concentration of monomers varies between 10 and 55 mol %, at pH 8.0-11.5 in presence of 0.3 to 1.5 wt % of water-soluble peroxide. Temperature in working channel is 40-50 C and summary radiation dose 2.0-5.7 Mrad. EFFECT: enabled use of aqueous polymerization medium with no use of inflammable alcohols. 1 tbl, 23 ex