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- Title
Effect of Dithienopyrrole Unit on Electrochromic and Optical Properties of Benzotriazole-Based Conjugated Polymers.
- Authors
Unlu, Naime Akbasoglu; Deniz, Tugba Kaya; Sendur, Merve; Cirpan, Ali
- Abstract
A series of benzotriazole (BTz)- and dithienopyrrole (DTP)-based three polymers; poly[2-(2-dodecyl-2H-benzo[d][1,2,3]triazol-4-yl)-4-hexyl-4H-dithieno[3,2-b:2′,3′-d]pyrrole] ( P1), poly[2- (5-(2-dodecyl-7-(thiophen-2-yl)-2H-benzo[d][1,2,3]triazol-4-yl)thiophen-2-yl)-4-hexyl-4H-dithieno[3,2-b:2′,3′-d]pyrrole] ( P2), and poly[2-(5-(2-dodecyl-7-(4-hexylthiophen-2-yl)-2H-benzo[d][1,2,3]triazol-4-yl)-3-hexylthiophen-2-yl)-4-hexyl-4H-dithieno[3,2-b:2′,3′-d]pyrrole] ( P3) was synthesized via Stille coupling. To investigate the effect of the π-bridges on the electrochromic properties of BTz-based polymers, thiophene and 3- hexylthiophene was incorporated between BTz and DTP moiety. Different π-bridges affected the HOMO and LUMO energy levels, coloration efficiency, switching time, and optical contrast.
- Publication
Macromolecular Chemistry & Physics, 2012, Vol 213, Issue 18, p1885
- ISSN
1022-1352
- Publication type
Article
- DOI
10.1002/macp.201200274