Highly stable electrochromic and electrofluorescent dual-switching polyamide containing bis(diphenylamino)-fluorene moieties

Sun, Ningwei; Meng, Shiyao; Chao, Danming; Zhou, Ziwei; Du, Yinlong; Wang, Daming; Zhao, Xiaogang; Zhou, Hongwei; Chen, Chunhai

doi:10.1039/c6py01345g

Cited by 65 publications

(35 citation statements)

References 44 publications

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“…The BCT‐1 film possessed a strong absorption at 333 nm in the neutral form; this was due to the π–π* transitions of the TPA group. When the applied potentials of the BCT films increased from 0 to 1.6 V at the same voltage intervals, a new absorption peak of the BCT‐1 film appeared at 778 nm; this was caused by the oxidation of the TPA group . As a result of this electrochromism, the color of the polymer film changed from pale yellow to green.…”

Section: Resultsmentioning

confidence: 99%

Electrochromism of novel triphenylamine‐containing polyamide polymers

Liu

Zhang

et al. 2018

J of Applied Polymer Sci

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A series of novel polymers (coded as BCT-1 to BCT-6 (BTC is block triphenylamine)) based on N 1 -(4-aminophenyl)-N 1phenyl benzene-1,4-diamine, pyridine-2,6-dicarboxylic acid, 4,4 0 -(phenyl azanediyl)dibenzoic acid (PDA), and different diamine compounds were synthesized successfully through a polymer condensation reaction. For comparison, model polymers, BCT-2,6-pyridine dicarboxylic acid (PA) and BCT-PDA, were synthesized as well. The electrochromic properties of the BCTs were determined via an electrochemical workstation and a UV-visible spectrophotometer. Through electrooxidation, the polymer films showed reversible redox processes and steady color changes. In a comparision of the electrochromic characteristics of the BCTs, almost all the novel polymer films showed a better electrochromism stability, a higher electrochromic coloration efficiency (CE), and a more rapid switching time than BCT-PA and BCT-PDA. Among these polymers, BCT-1 exhibited the highest CE of 266.7 cm 2 /C, and BCT-4 showed the most rapid switching time (color switching time = 3.08 s and bleaching time = 2.01 s).

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Section: Resultsmentioning

confidence: 99%

Electrochromism of novel triphenylamine‐containing polyamide polymers

Liu

Zhang

et al. 2018

J of Applied Polymer Sci

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“…Multi‐color electrochromic devices can be readily fabricated through molecular design and functional control. It is worthwhile mentioning that some fluorescent triphenylamine‐based polymers have recently been designed and prepared . The resulting polymers exhibit an exciting electrochromic and electrofluorescent dual‐switching behavior, which suggests their promising applications in displays and sensors.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and electrochemical characterization of polyamic acid containing oligoaniline and triphenylamine

Yan

Jia

Feng

et al. 2017

J. Polym. Sci. Part A: Polym. Chem.

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“…prepared copolyamides with improved solubility and good thermal stability by utilizing a four‐component copolymerization process, but the processing and mechanical strength of the polymer was not reported . On the other hand, extended applications of the high‐performance aramids in technological fields, such as photoluminescent, ion‐exchange, reverse osmosis, and optically active materials have been studied by many scientists …”

Section: Introductionmentioning

confidence: 99%

Facile preparation and characterization of soluble aramid

Zhou¹,

Wang

Zhang³

et al. 2018

J of Applied Polymer Sci

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It remains a problem to prepare cost-effective aramid with good solubility via a simple method since the commercialization of aromatic polyamides such as Kevlar and Nomex by DuPont in 1960s. Herein, we report the facile preparation and properties of an aromatic polyamide copolymerized by 2,6-naphthalene dichloride (26N-COCl), 4,4 0 -oxydianiline, and m-phenylenediamine. The synthetic route is very facile and cost-effective. The modified aramids possess excellent comprehensive properties. The polymers are soluble in some organics. Their thermal stabilities are excellent, with 5% weight loss temperatures (T d,5% 's) in air higher than 460 8C and glass transition temperatures (T g 's) higher than 280 8C. These polymers are easily processed into films, fibers, and tubes. The products exhibit high strength. For example, the films have excellent mechanical strength, with a tensile strength up to 139 MPa, a tensile modulus up to 3.45 GPa, and an elongation of 11%. The films are also transparent and fluorescent. The overall properties are better than those of the commercial Nomex. The facilely prepared aramids with good solubility are very promising for commercial use.

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Highly stable electrochromic and electrofluorescent dual-switching polyamide containing bis(diphenylamino)-fluorene moieties

Abstract: A novel semi-aromatic polyamide with bis(diphenylamino)-fluorene moieties was designed and synthesized, which exhibited highly stable electrochromic/electrofluorescent dual-switching properties.

Cited by 65 publications

References 44 publications

Electrochromism of novel triphenylamine‐containing polyamide polymers

Electrochromism of novel triphenylamine‐containing polyamide polymers

Synthesis and electrochemical characterization of polyamic acid containing oligoaniline and triphenylamine

Facile preparation and characterization of soluble aramid

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