COMPOSITION AND METHOD OF PRODUCING POLYMER PROTON-CONDUCTING COMPOSITE MATERIAL Russian patent published in 2015 - IPC C08L29/04 H01G9/25 C08J5/18 

FIELD: chemistry.

SUBSTANCE: composition for producing a polymer proton-conducting composite material includes 2-9% aqueous polyvinyl alcohol solution, a proton-conducting solid electrolyte in the form of phosphoric-tungstic acid, potassium polytitanate nanoparticles and a plasticiser in the form of glycerine, with the following ratio of components, wt %: aqueous polyvinyl alcohol solution 38-64; phosphoric-tungstic acid 19-50; potassium polytitanate 0.1-5.0; glycerine - the balance. A method of producing a polymer proton-conducting composite material from the disclosed composition includes mixing potassium polytitanate nanoparticles with 2-9% aqueous polyvinyl alcohol solution, homogenising the mixture for not less than 3 hours, followed by adding a weighed amount of phosphoric-tungstic acid and mixing for 8-12 hours until the acid dissolves completely, adding glycerine to the obtained mixture and holding for 2-3 days at room temperature while stirring constantly to complete homogenisation, applying the obtained mixture on a base and holding at a temperature not higher than 40°C for a period of time sufficient for polymerisation of the mixture to obtain a composite material in the form of a film or a film coating. The potassium polytitanate nanoparticles have an average effective diameter of not more than 600 nm, preferably not more than 300 nm, and thickness not more than 40 nm, preferably 20 nm.

EFFECT: invention enables to obtain a polymer proton-conducting composite material having high ion conductivity and a relatively low electron conductivity component, and also characterised by high permittivity and a high rate of polymerisation when using the material in production processes.

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