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Synthesis of conducting copolymers of thiophene capped poly(ethylene oxide) with pyrrole and thiophene

机译：噻吩封端的聚环氧乙烷与吡咯和噻吩的导电共聚物的合成

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摘要

Thiophene capped poly(ethylene oxide) (PEO) was synthesized. Copolymerisations of PEO with pyrrole (Py) and thiophene (Th) were achieved in water-sodium dodecyl sulfate (SDS) and acetonitrile (AN)-tetrabutylammonium tetrafluoroborate (TBAFB) solvent electrolyte couples via constant potential electrolyses. Characterisations of the samples were performed by NMR, cyclic voltammetry (CV), FT-IR, scanning electron microscopy (SEM). Electrical conductivities were measured by the four-probe technique. PEO-co-PTh film which was synthesized on ITO-glass in boron fluoride-ethyl ether (BFEE) found to exhibit electrochromic behaviour and it electrochemically switches between blue oxidized and red reduced states. Optical analyses were carried out to investigate the electronic structure of PEO-co-PTh electrochromic copolymer.
机译：合成了噻吩封端的聚环氧乙烷（PEO）。 PEO与吡咯（Py）和噻吩（Th）的共聚反应是通过恒电位电解在水-十二烷基硫酸钠（SDS）和乙腈（AN）-四丁基四氟硼酸铵（TBAFB）溶剂电解质中实现的。通过NMR，循环伏安法（CV），FT-IR，扫描电子显微镜（SEM）对样品进行表征。通过四探针技术测量电导率。 PEO-co-PTh薄膜是在ITO玻璃上用氟化硼-乙醚（BFEE）合成的，具有电致变色行为，并且可以在蓝色氧化态和红色还原态之间进行电化学转换。进行光学分析以研究PEO-co-PTh电致变色共聚物的电子结构。

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