| abstract |
Process for the preparation of neutral poly(ethylene-3,4-dioxythiophenes) of the general formula (I) n in which n R 1 and R 2 , independently of one another, each represent H or C 1 to C 9 -alkyl, it also being possible for R 2 to be CH 2 —O—R 3 with R 3 =H or C 1 to C 9 -alkyl, cycloalkyl or aralkyl, when R 1 represents H, and n represents 2 to 200, suitable thiophene monomers being reacted in an organic solvent with an oxidizing agent and the oxidizing agent being used in 50 to 99.9% of the stoichiometrically required amount. The neutral poly(ethylene-3,4-dioxythiophenes) thus obtainable are distinguished in particular by their solubility in organic solvents. |