Synthesis of aromatic poly(pyridinium salt)s and their electrochromic properties

Keshtov M. L. , Udum Y. , TOPPARE L. K. , Kochurov V. S. , Khokhlov A. R.

MATERIALS CHEMISTRY AND PHYSICS, vol.139, pp.936-943, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 139
  • Publication Date: 2013
  • Doi Number: 10.1016/j.matchemphys.2013.02.059
  • Page Numbers: pp.936-943
  • Keywords: Electrochemical techniques, Electrochemical properties, Polymers, Optical materials, VIOLOGEN PENDANT, ELECTROCHEMISTRY, POLYAMIDES, MOIETIES, CONTRAST, BEARING, POLYMER


Synthesis of a series of new conjugated electrochromic polymeric pyridinium salts containing main-chain triphenylamine and their electrochromic properties were demonstrated. All polymers exhibit intense UV absorptions at 336-338 nm in DMF and 340-343 nm in thin film form and fluorescence centered at 410-438 nm in DMF and 460-461 nm in thin film form. The electrochromic properties of the films were investigated by electrochemical and spectroelectrochemical methods. Reversible redox signals with stable electrochromic characteristics were obtained via cyclic voltammetry. The electrochromic properties of the polymers remain highly stable after 50 cycles between 0 and 1.2 V. (C) 2013 Elsevier B.V. All rights reserved.