Carbazole based electrochromic polymers with benzoazole units: Effect of heteroatom variation on electrochromic performance

Clicks: 299
ID: 81921
2016
A series of carbazole-based polymers were synthesized via Suzuki polymerization between N-(2-ethylhexyl)carbazole-3,6-bis(ethyleneboronate) (Cbz) and dibromobenzazole unit. Three different polymers, PCBN, PCBS and PCBSe were obtained from 4,7-dibromo-2-hexyl-2H-benzotriazole (BN), 4,7-dibromo-2,1,3-benzothiadiazole- (BS) and 4,7-dibromo-2,1,3-benzoselenadiazole (BSe), respectively. It is observed that, the variation of heteroatoms (N,S and Se) on the benzazole unit have most important effect on electro-optic properties of the PCBX polymers. Neutral state color of the polymer films and their electrochromic performances are also influenced. Among the synthesized polymers, the PCBS bearing 2,1,3-benzothiadiazole as acceptor units has a broad absorption and 50% of ΔT in the near-IR regime at the oxidized state. This property of PCBS is a great advantage for near-IR electrochromic applications.
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doyranli2016carbazoleexpress Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Doyranli, C.;Koyuncu, F. Baycan;
Journal express polymer letters
Year 2016
DOI DOI not found
URL
http://www.expresspolymlett.com/letolt.php?file=EPL-0007150&mi=cd
Keywords
chemistry Materials of engineering and construction. Mechanics of materials Chemical technology plant ecology water supply for domestic and industrial purposes energy industries. energy policy. fuel trade river, lake, and water-supply engineering (general)

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