IMPROVED HYDROPHILIC COMPOSITIONS Russian patent published in 2020 - IPC C08F226/06 C08F226/10 C08F220/06 C08F220/10 B29C67/00 G02F1/13 H01G4/00 H01M10/06 

FIELD: chemistry.

SUBSTANCE: present invention relates to a method of forming a cross-linked electron-active hydrophilic copolymer, a mixture of comonomers and a supercondenser. Said method involves the following steps: a. mixing electronically active material and at least one compound of formula (I) with water to form an intermediate mixture; b. adding at least one hydrophilic monomer, at least one hydrophobic monomer and at least one cross-linking agent to the intermediate mixture to form a mixture of comonomers; c. polymerisation of a mixture of comonomers. Compound of formula (I) is a compound , in which R¹ and R² are independently optionally substituted C₁-C₆ alkyl, where substitute is selected from one or more hydroxyl, halogen, NH₂, NO₂, CH₃O, CO₂H, COOOH, NR, NRR', NHCOR and RSH, where R and R' represent C₁-C₆ alkyl, X^- represents an anion. Electronically active material is selected from polyethylene dioxythiophene: polystyrene sulphonate, polypyrrole, polyaniline, polyacetylene or a combination thereof. At least one hydrophilic monomer is selected from methacrylic acid, 2-hydroxyethyl methacrylate, ethyl acrylate, vinylpyrrolidone, methyl ester of acrylic acid, monometacryloyloxyethyl phthalate, ammonium sulphatoethylmethacrylate, polyvinyl alcohol or a combination thereof. At least one hydrophobic monomer is selected from methyl methacrylate, allyl methacrylate, acrylonitrile, methacryloxypropyltris(trimethylsiloxy)silane, 2,2,2-trifluoroethyl methacrylate or combinations thereof. Supercapacitor contains two electrodes and an electronically active hydrophilic copolymer between them.

EFFECT: obtained copolymer has good water properties, leading to improved characteristics in aqueous media of electronic systems, is stable in a wide range of different media on a water base, and also has excellent mechanical properties and electric conductivity, and has wide applicability in electronic systems, including systems with water-based media, such as automotive accumulators.

28 cl, 26 dwg, 10 tbl, 10 ex