Multichromic and soluble conjugated polymers containing thiazolothiazole unit for electrochromic applications

Akpinar H. Z., Udum Y. A., TOPPARE L. K.

EUROPEAN POLYMER JOURNAL, vol.63, pp.255-261, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 63
  • Publication Date: 2015
  • Doi Number: 10.1016/j.eurpolymj.2014.12.028
  • Journal Name: EUROPEAN POLYMER JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.255-261
  • Keywords: Multichromism, Conducting polymers, Thiazolothiazole, Benzotriazole, Electrochromism, FLUORENE, COPOLYMERS, BENZOTRIAZOLE
  • Middle East Technical University Affiliated: Yes

Abstract

Here we report the preparation of two solution processible polymers; poly(2-(5-(2-(2-octyldodecyl)-2H-benzo[d][1,2,3]triazol-4-yl)thiophen-2-yl)-5-(thiophen-2-yl)thiazolo[5,4-d]thiazole) (PBTTz) and poly(2-(5-(9,9-dioctyl-9H-fluoren-2-yl)thiophen-2-yl)-5-(thiophen-2-yl)thiazolo[5,4-d]thiazole) (PFTTz) which are multichromic electroactive polymers. PBTTz was synthesized via Stille coupling polymerization whereas PFTTz was synthesized via Suzuki coupling polymerization. Both polymers were coated on ITO slides and their electrochromic properties were investigated. The results of the PBTTz were also compared with a previously published polymer to investigate the linear and branched alkyl chain effect. The polymers were compared through their optical properties and UV-Vis spectroelectrochemistry. (C) 2014 Elsevier Ltd. All rights reserved.