首页> 外文期刊>RSC Advances >Synthesis and characterization of novel donor-acceptor type electrochromic polymers containing diketopyrrolopyrrole as an acceptor and propylenedioxythiophene or indacenodithiophene as a donor
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Synthesis and characterization of novel donor-acceptor type electrochromic polymers containing diketopyrrolopyrrole as an acceptor and propylenedioxythiophene or indacenodithiophene as a donor

机译:含有二酮吡咯醇的新型供体型电致变色聚合物作为受体和丙二烷烯或作为供体的茚环二烯酚的新型供体型电致变色聚合物的合成与表征

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摘要

A range of low band gap donor-acceptor conjugated polymers (P1-P3) with backbones composed of diketopyrrolopyrrole (DPP), propylenedioxythiophene (ProDOT) and indacenodithiophene (IDT) units were designed and synthesized using the Stille coupling reaction. The optical, electrochemical and electrochromic properties of the resultant polymers were thoroughly characterized. These polymers showed exceptional solubility in common organic solvents and displayed thermal stability at a high temperature. The optical and electrochemical measurements revealed slight variations in the maximum absorptions and oxidation peaks depending on the intrinsic D-A ratio in each polymer, and narrow band gaps lower than 1.60 eV were found for these polymers. Upon oxidation, the polymer films exhibit distinct color changes (pale violet-red to dark gray for P1, rosy brown to silver for P2, atrovirens to light grey for P3) in the VIS and NIR regions. Moreover, the electrochromic switching studies indicated that these polymers have favorable switching properties, such as rapid response speed and high optical contrast and coloration efficiency, and are outstanding candidates for electrochromic applications.
机译:使用STIZH偶联反应设计并合成了由二丙吡咯(DPP),丙二烷烯(ProDot)和茚磺烯二苯甲乙烯(IDT)单元组成的带骨架的一系列低带隙供体缀合聚合物(P1-P3)。彻底表征了所得聚合物的光学,电化学和电致变色特性。这些聚合物在普通有机溶剂中显示出卓越的溶解度,并在高温下显示出热稳定性。光学和电化学测量显示最大吸收和氧化峰的略微变化,这取决于每个聚合物中的内在D-A比,并且发现这些聚合物的窄带间隙低于1.60eV。在氧化时,聚合物膜表现出明显的颜色变化(浅紫 - 红色,对于P1,玫瑰色棕色至P2,Atrovirens的玫瑰色棕色至p3浅灰色的浅灰色)。此外,电致变色切换研究表明,这些聚合物具有良好的开关性能,例如快速响应速度和高光学对比度和着色效率,并且是用于电致变色应用的优异候选者。

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  • 来源
    《RSC Advances》 |2018年第41期|共11页
  • 作者单位

    Nanyang Normal Univ Coll Chem &

    Pharmaceut Engn Nanyang 473061 Peoples R China;

    Liaocheng Univ Dongchang Coll Liaocheng 252059 Peoples R China;

    Liaocheng Univ Shandong Key Lab Chem Energy Storage &

    Novel Cell Liaocheng 252059 Peoples R China;

    Liaocheng Univ Shandong Key Lab Chem Energy Storage &

    Novel Cell Liaocheng 252059 Peoples R China;

    Liaocheng Univ Shandong Key Lab Chem Energy Storage &

    Novel Cell Liaocheng 252059 Peoples R China;

    Nanchang Hangkong Univ Coll Environm &

    Chem Engn Nanchang 330063 Jiangxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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