A novel method for producing a meta type polyaniline, comprising polymerizing aniline in at least one organic solvent selected from N-methyl-2-pyrrolidone, N,N-dimethyl sulfoxide, N,N-dimethylacetamide and N,N-dimethylformamide, in the presence of at least one oxidizing agent selected from ammonium peroxodisulfate, iron(III) chloride, manganese dioxide and hydrogen peroxide, at -20.degree. C. to 50.degree. C.

Un metodo del romanzo per produrre un tipo polyaniline del meta, contenente anilina di polimerizzazione in almeno un solvente organico scelto da N-methyl-2-pyrrolidone, N, solfossido n-dimetilico, N, N-dimethylacetamide e N, N-dimetilformammide, in presenza almeno di un agente ossidante scelto dal peroxodisulfate dell'ammonio, dal cloruro del iron(III), dal diossido del manganese e dal perossido di idrogeno, a -20.degree. C. a 50.degree. C.