Synthesis and Electrochromic Properties of Two Random Copolymers Containing Benzotriazole, Benzothiadiazole as Electron Acceptors and Benzodithiophene or Indacenodithiophene as Electron Donors

Shaowen Pei; Xiuping Ju; Jinsheng Zhao; Yan Wang; Hongmei Du

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Synthesis and Electrochromic Properties of Two Random Copolymers Containing Benzotriazole, Benzothiadiazole as Electron Acceptors and Benzodithiophene or Indacenodithiophene as Electron Donors

机译：两种含有苯并三唑，苯并噻二唑作为电子受体和苯并二噻吩或茚并二噻吩作为电子给体的无规共聚物的合成和电致变色性能

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Two random copolymers, poly (benzotriazole-indacenodithiophene-benzothiadiazole) (PBTIDBD) andpoly (benzotriazole-benzodithiophene-benzothiadiazole) (PBTBDBD) were synthesized andcharacterized by electrochemistry, spectroelectrochemistry, electrochromic switching, colorimetry andthermal gravimetric analysis. For PBTIDBD, the color of film changed from rosybrown in neutral stateto transparent lightgrey in oxidized state. The band gap calculated according to thespectroelectrochemistry data is 1.86 eV, and the response time, optical contrast, coloration efficiencyat 1560 nm are 1.04 s, 62.1%, 276.29 cm 2 ·C -1 , respectively. And, for PBTBDBD, its color changesfrom rosybrown to transparent grey as it was fully oxidized. The band gap is 1.68 eV, and the responsetime, optical contrast, coloration efficiency at 1560 nm are 2.68 s, 62.4%, 193.31 cm 2 ·C -1 , respectively.Both copolymers are stable at a high temperature, and the decomposition temperature of PBTIDBDand PBTBDBD are 463 °C and 326 °C. Both copolymers can be good candidates for electrochromicapplication.

机译：合成了两种无规共聚物聚（苯并三唑-吲哚并二噻吩-苯并噻二唑）（PBTIDBD）和聚（苯并三唑-苯并二噻吩-苯并噻二唑）（PBTBDBD），并通过电化学，光谱电化学，电致变色，比色法和热重分析表征。对于PBTIDBD，薄膜的颜色从中性状态的红褐色变为氧化态的透明浅灰色。根据光谱电化学数据计算出的带隙为1.86eV，在1560nm处的响应时间为1.04s，光学对比度为62.1％，显色效率为276.29cm 2·C -1。而且，对于PBTBDBD，由于其被完全氧化，其颜色从红褐色变为透明的灰色。带隙为1.68 eV，在1560 nm处的响应时间，光学对比度和着色效率分别为2.68 s，62.4％，193.31 cm 2·C -1。两种共聚物在高温下均稳定，分解温度为PBTIDBD和PBTBDBD分别为463°C和326°C。两种共聚物都是电致变色应用的良好候选者。

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《International Journal of Electrochemical Science》 |2019年第7期|共15页
作者
Shaowen Pei; Xiuping Ju; Jinsheng Zhao; Yan Wang; Hongmei Du;
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中图分类化学;
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conducting polymersindacenodithiophenebenzotriazolebenzothiadiazolebenzodithiophene;

机译：导电聚合物茚并二噻吩苯并三唑苯并噻二唑苯并二噻吩;

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2. Synthesis and characterization of donor-acceptor type conducting polymers containing benzotriazole acceptor and benzodithiophene donor or s-indacenodithiophene donor [J] . Zhang Di, Wang Min, Liu Xiaoli, RSC Advances . 2016,第96期

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5. Synthesis and electronic properties of TTFAQ based donor-acceptor molecular systems. [D] . Chen, Guang. 2006

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7. Synthesis and Electrochromic Properties of Two Random Copolymers Containing Benzotriazole, Benzothiadiazole as Electron Acceptors and Benzodithiophene or Indacenodithiophene as Electron Donors [O] . Shaowen Pei 2019

机译：两种无规共聚物的合成和电致变色特性，含苯并三唑，苯并噻唑作为电子受体和苯二苯噻吩或茚磺烯噻吩作为电子供体

Synthesis and Electrochromic Properties of Two Random Copolymers Containing Benzotriazole, Benzothiadiazole as Electron Acceptors and Benzodithiophene or Indacenodithiophene as Electron Donors

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