Enhancing electrochromic and kinetic properties of poly(2,3-bis(4-tert-butylphenyl)-5,8-di(1H-pyrrol-2-yl) quinoxaline) by copolymerization

Celebi, Selin; Baran, Derya; Balan, Abidin; Toppare, Levent

doi:10.1016/j.electacta.2009.12.010

Cited by 19 publications

(14 citation statements)

References 24 publications

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“…In order to enhance the electrochromic properties of the copolymer of (34) with bis(3,4-ethylenedioxythiophene), (BiEDOT) was synthesized. 133 The polymer revealed multicolor electrochromic properties with distinct colors (purple, gray, light green, blue) and a reasonable switching time (1.2 s) and optical contrast (23%) in the visible range. Another polymer of pyrrole with 2,3-di(thiophen-2-yl)quinoxaline (poly( 35)) exhibited a bandgap of 1.0 eV and a green to gray coloration upon doping.…”

Section: Structural Modicationmentioning

confidence: 94%

Polypyrrole derivatives for electrochromic applications

2014

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Section: Structural Modicationmentioning

confidence: 94%

Polypyrrole derivatives for electrochromic applications

2014

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“…19 Monomer of compound 19, 4,7-bis(2,3-dihydrothieno [3,4- [1,2,3] triazole (BEBT), was used as the comonomer against benzoquinoxaline and pyrrole bearing ones and it has been shown that copolymerization with BEBT increases the optical and kinetic properties of the resulting polymer even more efficiently than simple copolymerization with Bi-EDOT. 20,21 Benzazole-EDOT bearing DA type ECPs, 14 and 15, revealed a green color in their neutral states accompanied by highly transmissive oxidized states. 22,23 They showed two p-p* transitions which was claimed as essential to obtain green colored polymers.…”

Section: Electrochromics (Ecs)mentioning

confidence: 99%

Benzotriazole containing conjugated polymers for multipurpose organic electronic applications

2011

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Benzotriazole (BTz) containing polymers have recently emerged in organic electronic applications and they are increasingly attracting a great deal of attention. These polymers are reviewed from a general perspective in terms of their potential use in three main fields, electrochromics (ECs), organic solar cells (OSCs) and organic light emitting diodes (OLEDs). In order to have a better insight into the properties of these polymers, they were compared with similar polymers. Good solubility, optical and electronic properties and synthetic availability make them multipurpose materials. They combine many desired properties in polymers and their use in different device applications is examined in detail.

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“…Polymer electrochromic (PEC) materials have received extensive attention due to their wide variety of structures, rich color range, high optical contrast, good processability, adjustable band, and fast response and are considered as one of the development directions for the next generation of EC materials. − At present, the multicolor display properties of PEC materials are generally achieved through molecular structure design and modification such as donor–acceptor (D–A) structure design and the copolymerization of different monomers. − Copolymerization is an effective structural adjustment method that can combine the advantages of two or more monomers to improve the electrochromic properties of polymers. , We have used copolymerization to synthesize a series of multicolor display polymer materials. − However, the randomness of the copolymerization is not conducive to the in-depth study of the relationship between the molecular structure and the discoloration properties of the PEC material.…”

Section: Introductionmentioning

confidence: 99%

Design, Synthesis, and Properties of Donor–Acceptor–Donor′ Asymmetric Structured Electrochromic Polymers Based on Fluorenone as Acceptor Units

Liu

et al. 2019

ACS Appl. Polym. Mater.

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Two novel conjugated polymers based on a donor–acceptor–donor′ (D–A–D′) asymmetric structure, using fluorenone as the acceptor unit linked with different donor units on both sides, were designed and synthesized, namely poly2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-7-(thiophen-2-yl)-9H-fluoren-9-one (PSWE) and poly2-(4-(diphenylamino)phenyl)-7-(thiophen-2-yl)-9H-fluoren-9-one (PSWT). Compared with the symmetrical structure polymer poly(2,7-dithiophen-2-yl)-fluoren-9-one (PSWS), the asymmetric structure polymers exhibit lower redox potentials and bandgap values and more redox peaks and thus showed a richer variety of colors. Moreover, the introduction of 3,4-ethylenedioxythiophene improved PSWE’s response speed under the near-infrared–visible band and enhanced its optical contrast in the near-ultraviolet spectrum. The introduction of triphenylamine improved PSWT’s optical contrast in the near-infrared and visible spectra. It could be inferred that the polymers with asymmetric structure (D–A–D′) exhibit more redox sites and metastable states with respect to the symmetrical structure (D–A–D), which was attributed to the change in the distribution of the electronic cloud by replacing one donor (D) with another (D′) in the polymer monomer, and the electrochromic properties of the polymers were improved.

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Enhancing electrochromic and kinetic properties of poly(2,3-bis(4-tert-butylphenyl)-5,8-di(1H-pyrrol-2-yl) quinoxaline) by copolymerization

Cited by 19 publications

References 24 publications

Polypyrrole derivatives for electrochromic applications

Polypyrrole derivatives for electrochromic applications

Benzotriazole containing conjugated polymers for multipurpose organic electronic applications

Design, Synthesis, and Properties of Donor–Acceptor–Donor′ Asymmetric Structured Electrochromic Polymers Based on Fluorenone as Acceptor Units

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