Electropolymerization and electrochemical properties of poly(N-(N-carbazolylalkyl)aniline)

We synthesized N-carbazolylalkyl (ethyl, propyl, butyl, hexyl) aniline which has carbazole and aniline functional group together. Poly(N-N-carbazolylalkyl)aniline) has been synthesized by electrochemical polymerization in an acetonitrile solution containing 1 M H₂SO₄ on the platinum electrode. Polymer film showed reversible process in redox reaction and typical oxidation of aniline group. Poly(N-N-carbazolylhexyl)aniline) (PNCHA) showed clearly two oxidation peaks at around 0.65 and 0.75 V during electropolymerization. The color of poly(N-N-carbazolylalkyl)aniline) changed from transparent light-green in reduction state to dark green in oxidation state.