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This paper describes the synthesis and electrochromic properties of a novel soluble polyaniline-polythiophene-polyaniline tri-block copolymer. The measurements of optical absorbance as a function of voltage and time on tri-block copolymer thin films demonstrated an improvement in stability at ambient conditions and visible light irradiation during the application of voltages. Switching experiments...
Soluble poly(9,9-dialkylfluorene)/poly(2-alkylaniline) tri-block copolymers were synthesized following an improved two-step synthetic procedure: (i) aryl-aryl coupling of a 2,7-dibromo-9,9-dialkylfluorene according to Yamamoto in the presence of 4-bromoaniline as a monofunctional 'end-capping' reagent, and (ii) subsequent oxidative condensation with a 2-alkylaniline. The bluish colored conjugated-conjugated...
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