Electrosynthesis and properties of poly-[N-(3,6,9-trioxadecyl)aniline]

Electrochemical polymerization of N-(3,6,9-trioxadecyl)aniline (NTDAn), which has three oxyethylene units at N position of aniline, was performed. The electrochemical, optical and electrical properties of resulting polymer were investigated. Poly-NTDAn showed two reversible redox couples around 0.6 V (vs. SCE) and -1.1 V in acetonitrile solutions containing Li cation. The latter couple was attributed to the n-type doping-undoping reactions. Poly-NTDAn had an absorption maximum in the visible region even in its neutral form. The molecular weight of poly-NTDAn was high (1,100,000) and the conductivity value was about 1 mS/cm.