A method for determination of residual monomers in homo-and copolymers of acrylamide and N,N,N-trimethyl-N-methacryloyloxyethylammonium methylsulfate by means of thin-layer chromatography has been developed. Efficient eluting systems have been found for separation and identification of the indicated components, and the limits of their quantitative determination in the obtained polymers have been established.

A copolymer with N-allylaminophenylboronic acid has been synthesized from a water-soluble N-vinylpyrrolidone–acrolein diethyl acetal copolymer. Immobilization of the obtained copolymer on silica gel afforded an organic–inorganic sorbent capable of sorbing glucose from model solutions.

Radical copolymerization of glycidyl methacrylate with vinylpyrrolidone and glycidyl methacrylate with vinylformamide, followed by modification with glucosamine, was used to synthesize low-basic anion exchangers for extracorporeal removal of endotoxins from blood plasma. The effect of the glucosamine concentration on the basicity of the polymeric sorbents was studied and optimal conditions for modification of network polymers were found. Their physicochemical and sorption properties were examined. It was shown that the main contribution to the change in the free energy of sorption of the endotoxin by the synthesized polymeric sorbents is made by hydrophobic interactions, with the increase in the basicity of the anion exchangers leading to a rise in sorption capacities.

Samples of poly(N,N,N,N-trimethylmethacryloyloxyethylammonium) methyl sulfate prepared by suspension and bulk polymerization were studied.

A complex on-line procedure based on combined use of integral (spectroturbidimetry) and differential (nephelometry) light scattering methods was applied to studying the size and formation kinetics of dispersed particles in solutions containing a protein and synthetic cationic soluble polymers. The influence of pH of the medium and of the molecular weight and structural organization of polymers on the floccule size and flocculation kinetics was evaluated.