A new imine coupled pyrrole-carbazole-pyrrole polymer: Electra-optical properties and electrochromism


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Is O. D. , Baycan Koyuncu F. , Koyuncu S. , Özdemir E.

POLYMER, cilt.51, ss.1663-1669, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

In this study, imine bond coupled pyrrole carbazole pyrrole monomers were synthesized in four steps and then directly polymerized onto ITO/glass surface via potentiodynamic electrochemical process. Electrochemical and optical bad gap of these monomers and polymers were calculated by using cyclic voltammetry and UV-Vis absorption spectroscopy. Conductivity of the polymers with different alkyl side-chain was determined by using four point probe technique. Length of the side-alkyl chain influence iodine doping and also conductivity of polymers. As a result of the spectroelectrochemical measurements, the orange color of film changed to green color with applied potential and the polymer was found to be suitable material for electrochromic applications. (C) 2010 Elsevier Ltd. All rights reserved.