| 摘要 |
PURPOSE:To obtain the title polymer which is formed as a film of excellent smoothness on an electrode base and is useful as an electric or electronic material, by polymerizing a specified N-alkyl-substituted dihydropyrrolopyrrole in an electrolyte solvent by electrochemical oxidation. CONSTITUTION:An electrolyte (e.g., NaClO4) is dissolved in a solvent (e.g., acetonitrile) to obtain an electrolyte solvent (B) of a concentration of 0.01mol/l to the saturation concentration. An N-alkyl-substituted dihydropyrrolopyrrole (A) of the formula (wherein R1-2 are each H or alkyl and at least either of them is alkyl) in an amount to give a concentration of 0.001mol/l to the saturation concentration in component B is polymerized by electrolytic oxidation at 0-100 deg.C and a voltage of -0.5-1.0V with respect to a saturated sodium chloride/calomel electrode, preferably, in an inert gas atmosphere by using an electrode material, e.g., Pt of an electric conductivity >=10<-3>S/cm.
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