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Three diamine monomers with methoxy group substituents in the ortho, meta and para positions in the triphenylamine moiety were synthesized by a nucleophilic aromatic substitution reaction using 4-fluoronitrobenzene with o-, mand p-anisidine, respectively. From these diamine monomers, electrochromic polyamides were synthesized by a direct polycondensation reaction. 1 H nuclear magnetic resonance and Fourier transform infrared spectroscopy confirmed the synthesis of the electrochromic polyamides. The measured inherent viscosity of the polyamides was in the range 0.65-0.78 dL/g. All the polyamides showed good thermal properties and formed good spin-coated thin films. The energy band gap and oxidation onset potential, E onset , for the polyamide films was in the order of tere-p-OCH3TPA polyamide \ tere-o-OCH3TPA polyamide \ tere-m-OCH3TPA polyamide. The electrical properties and spectroelectrochemical behavior varied according to the methoxy substituted position in the triphenylamine moiety.

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