COPOLYMERS OF 4-VINYLPYRIDINE OR 2-METHYL-5-VINYLPYRIDINE AND N-VINYLPYRROLIDONE WITH TERMINAL CYANOVALERIC ACID RESIDUE AND USE THEREOF TO TREAT PNEUMOCONIOSIS

摘要

FIELD: chemistry.;SUBSTANCE: disclosed are copolymers based on N-vinylpyrrolidone, having as terminal fragments a cyanovaleric acid residue and a hydrogen atom, having general formula (I) where the monomer link is a 4-vinylpyridine (4-VP) fragment, if X is or a 2-methyl-5-vinylpyridine (2-M-5-VP) fragment, if X is , wherein the content of monomer links which are 4-VP or 2-M-5-VP fragments is 20-90 mol%; the viscosity-average molecular weight M_µ of the copolymers is equal to 10-350 kDa, and the acid number is equal to (0.1-5.6)·10^-3 mg KOH/g. Also disclosed is use of said copolymers as an anti-pneumoconiosis agent.;EFFECT: high efficiency of using the compound.;2 cl, 2 tbl, 11 ex