| abstract |
(57) [Summary] [Object] To provide a sulfonated aniline copolymer which exhibits high conductivity and is soluble in water and alcohol, thereby improving the coating property. [Structure] At least one compound (A) selected from the group consisting of aniline, N-alkylaniline and phenylenediamines is copolymerized with aminobenzenesulfonic acid (B), thereby improving the solubility in a sulfonation solvent. After improvement, sulfonation is performed to obtain a novel sulfonated aniline copolymer. |