FIELD: polymer chemistry.
SUBSTANCE: invention relates to anionic polymer that can be used in the field of polymer chemistry, in particular for the production of ionophores, electrochromic materials, electrocatalytic materials and materials for electrochemical current sources. Anionic polymer is obtained by sulfonation of poly(3,4-dihydroxy styrene) with Mw=130,000 with chlorosulfonic acid in organic solvents, and it contains links 
, where M is Na+ cation, and a number of sulfonated links varies in the range from 1 to 956. A method for producing anionic polymer is also described, including a stage of processing poly(3,4-dihydroxystyrol) with chlorosulfonic acid at a temperature from - 29 to 20°C in an organic ether solvent.
EFFECT: providing anionic polymers containing ortho-quinone groups capable of reversible oxidation and reduction, as well as a method for sulfonating polyhydroxy styrenes.
3 cl, 1 ex
