WATER-SOLUBLE COPOLYMERS COMPRISING NITROGEN ATOMS, COMPOSITIONS BASED ON WATER-SOLUBLE HOMOPOLYMERS AND COPOLYMERS COMPRISING NITROGEN ATOMS AND METHOD FOR PREPARING COMPOSITIONS OF WATER-SOLUBLE HOMOPOLYMERS AND COPOLYMERS Russian patent published in 2004 - IPC

FIELD: organic chemistry, polymers. SUBSTANCE: invention describes water-soluble copolymers based on benzenesulfonate salt of N,N,N,N- trimethylmethacryloyloxyethyl ammonium and acrylamide of the general formula of link: wherein m = 5.1- 50.0 mole%; n = 50.0-94.9 mole%; R means with molecular mass 27 mln Da. Invention relates also to composition based on water-soluble homopolymers of methylsulfate and benzenesulfonate salts of N,N,N,N- trimethylmethacryloyloxyethyl ammonium and acrylamide and methylsulfate and benzenesulfonate salts of N,N, N, N-trimethylmethacryloyloxyethyl ammonium and acrylamide of the general formula of link: wherein m = 0.5-99.5 mole%; n = 0.5-99.5 mole%; R means with molecular mass 1-27 mln Da and additions of low-molecular water-soluble polyhydric alcohols comprising indicated components in the following amounts, wt.-%: water-soluble homopolymer or copolymer of indicated composite, 75-93 and low-molecular addition among order including lower water-soluble polyhydric alcohols or their aqueous solutions in the concentration of polyhydric alcohols 20-100 wt. -%, 7-25. Also, invention describes method for preparing indicated water- -soluble compositions comprising homopolymers and copolymers containing nitrogen atom. Method involves homopolymerization or copolymerization of monomers of (meth)acrylic order containing nitrogen atoms at heating to 45-70 C in an aqueous-organic or organic solutions containing 20-100 wt.-% of lower water-soluble polyhydric alcohols comprising compound taken among order including glycerol, ethylene glycol wherein solvent mass is 7-25 % of reaction mixture mass. As monomers of (meth)acrylic order comprising nitrogen atom method involves using compound among order including methylsulfate and benzenesulfonate salt of N,N,N,N- trimethylmethacryloyloxyethyl ammonium, acrylamide. Invention provides preparing dry water-soluble end product based on copolymers comprising nitrogen atom with regulated molecular mass value and content of monomer links in wide ranges being without using radical initiating agents. EFFECT: improved preparing method, valuable properties of compositions. 4 cl, 2 tbl