A method for producing a PEDOT film on a substrate comprising a substrate and at least one PEDOT layer on a surface of the substrate is disclosed. The method comprises applying a solution comprising an oxidant and a base inhibitor on a surface of the substrate; subjecting the oxidant-coated substrate to a polymerization step by exposing the surface(s) of the oxidant-coated substrate to EDOT monomer vapour at a polymerization temperature; and wherein, during the polymerization step, the temperature of the oxidant-coated substrate is kept at a controlled substrate temperature and wherein the controlled substrate temperature is 2-40 C. lower than the polymerization temperature. Further is disclosed a conducting PEDOT film, an electronic device comprising the conducting PEDOT film and different uses of the conducting PEDOT film. Further, is disclosed a method for producing a polymer film formed of a copolymer, a conducting polymer film, an electronic device comprising the conducting polymer film and different uses of the conducting polymer film.

A method for producing a PEDOT film on a substrate comprising a substrate and at least one PEDOT layer on a surface of the substrate is disclosed. The method comprises applying a solution comprising an oxidant and a base inhibitor on a surface of the substrate; subjecting the oxidant-coated substrate to a polymerization step by exposing the surface(s) of the oxidant-coated substrate to EDOT monomer vapour at a polymerization temperature; and wherein, during the polymerization step, the temperature of the oxidant-coated substrate is kept at a controlled substrate temperature and wherein the controlled substrate temperature is 2-40 C. lower than the polymerization temperature. Further is disclosed a conducting PEDOT film, an electronic device comprising the conducting PEDOT film and different uses of the conducting PEDOT film. Further, is disclosed a method for producing a polymer film formed of a copolymer, a conducting polymer film, an electronic device comprising the conducting polymer film and different uses of the conducting polymer film.

A monomer composition comprising at least one functionalized thiophene monomer having the structure (I), wherein X.sup.1 and X.sup.2 represent independently from each other O or S; X.sup.3 represents CH.sub.2O with the carbon atom bonded to R.sup.1 or represents O; R.sup.1 represents a trivalent organic group; R.sup.2 represents a divalent organic group; M.sup.1 represents a monovalent cation; wherein the monomer composition is essentially free of unsaturated organic sulfonic acids having the structure (II), wherein R.sup.3 represents a divalent organic group; M.sup.2 represents a monovalent cation; or wherein the monomer composition comprises unsaturated organic sulfonic acids having the structure (II) in such a maximum amount that the molar ratio of the total amount of unsaturated organic sulfonic acids having the structure (II) to the total amount of functionalized thiophene monomers having structure (I) is 1:32 or less.

A method for removing impurities from a damaged oil including an oil and impurities is provided. The method includes mixing the damaged oil with a solvent to form a mixture containing a solvent phase and a non-solvent phase and separating the solvent phase from the non-solvent phase. The solvent phase contains the solvent, recovered oil, and impurities in a first concentration. The non-solvent phase contains impurities in a second concentration. The second concentration is higher than the first concentration.