FIELD: chemistry.
SUBSTANCE: invention discloses N-vinylpyrrolidone based copolymers of genera formula (I): 
where the monomer link M denotes a fragment of 2-methyl-5-vinyltetrazole (MVT) or 2-methyl-5-vinylpyridine (MVP): 
content of monomer links n is equal to 25-90 mol % and average molecular weight Mµ of the copolymer depends on the nature M (if M=MVT 100-250 kDa, if M=MVP 46-150 kDa). The copolymers are used as adjuvants in preparing vaccines.
EFFECT: obtaining non-toxic copolymers with adjuvant activity.
3 cl, 5 tbl, 14 ex
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