Electrochemical Synthesis and Characterization of Self-supporting Flexible Poly(5-indolylboronic acid) Film

Wei-qiang Zhou; Huan Kang; Shi-xing Chao; Jing-kun Xu

doi:10.11777/j.issn1000-3304.2021.21270

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Electrochemical Synthesis and Characterization of Self-supporting Flexible Poly(5-indolylboronic acid) Film

Research Article | 更新时间：2024-10-08

- Electrochemical Synthesis and Characterization of Self-supporting Flexible Poly(5-indolylboronic acid) Film
- ACTA POLYMERICA SINICA Vol. 53, Issue 3, Pages: 273-278(2022)
- 作者机构：
  
  江西科技师范大学柔性电子创新研究院南昌 330013
- 作者简介：
  
  Wei-qiang Zhou, E-mail: zhouwqh@163.com
  Jing-kun Xu, E-mail: xujingkun@tsinghua.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2021.21270
  CLC：
- Published：20 March 2022，
  
  Published Online：23 December 2021，
  
  Received：14 September 2021，
  
  Revised：21 October 2021，
- 稿件说明：
移动端阅览
周卫强,康欢,晁诗杏等.自支撑柔性聚(,5-吲哚硼酸)膜的电化学合成及表征,[J].高分子学报,2022,53(03):273-278.

Zhou Wei-qiang,Kang Huan,Chao Shi-xing,et al.Electrochemical Synthesis and Characterization of Self-supporting Flexible Poly(5-indolylboronic acid) Film[J].ACTA POLYMERICA SINICA,2022,53(03):273-278.
周卫强,康欢,晁诗杏等.自支撑柔性聚(,5-吲哚硼酸)膜的电化学合成及表征,[J].高分子学报,2022,53(03):273-278. DOI： 10.11777/j.issn1000-3304.2021.21270.

Zhou Wei-qiang,Kang Huan,Chao Shi-xing,et al.Electrochemical Synthesis and Characterization of Self-supporting Flexible Poly(5-indolylboronic acid) Film[J].ACTA POLYMERICA SINICA,2022,53(03):273-278. DOI： 10.11777/j.issn1000-3304.2021.21270.

摘要

在三氟化硼乙醚/乙腈的混合体系中，5-吲哚硼酸的电化学氧化可以获得导电率为9×10

-4

S∙cm

-1

的自支撑柔性聚(5-吲哚硼酸)膜. 5-吲哚硼酸在80%的三氟化硼乙醚/乙腈溶液中的起始氧化电位约为0.80 V. 红外光谱确定了5-吲哚硼酸的聚合位点在C

和C

位上. 紫外可见光谱测试结果表明聚(5-吲哚硼酸)的能隙约为2.48 eV. 制备的聚(5-吲哚硼酸)膜具有良好的电化学性能和热稳定性能.

Abstract

Flexible conducting polymers have potential applications in future wearable or portable electronics. However

conducting polymers with rigid structure were difficultly prepared into robust flexible films

especially

their electrochemical instability is a critical defect. Therefore

the preparation of high-quality flexible conducting polymer films is both meaningful and challenging. Here

a self-supporting flexible poly(5-indolylboronic acid) (PInBA) film with an electrical conductivity of 9×10

-4

S·cm

-1

is facilely prepared by direct anodic oxidation of 5-indolylboronic acid in the mixed system of 80% boron trifluoride diethyl etherate and acetonitrile. The initial oxidation potential of 5-indolylboronic acid in 80% boron trifluoride diethyl etherate-acetonitrile solution is about 0.80 V versus Ag/AgCl

lower than that determined in acetonitrile system (0.93 V versus Ag/AgCl). The structure

electrochemical performance and thermal stability of PInBA film are investigated by Ultraviolet-visible (UV-Vis) spectroscopy

Fourier transform infrared (FTIR) spectroscopy

scanning electron microscopy

cyclic voltammetry and thermogravimetric analysis. The results of FTIR spectra confirm that the polymerization sites of 5-indolylboronic acid are at the C

and C

positions. The UV-Vis spectrum proves that the band gap of PInBA is 2.48 eV. And as-prepared PInBA film has excellent electrochemical performance

high thermal stability and good mechanical properties. These results indicate that the PInBA film is a promising electrode material for flexible electronics such as electrochemical sensors

supercapacitors and thermoelectrics.

关键词

导电聚合物5-吲哚硼酸电聚合柔性膜

Keywords

Conducting polymer5-Indolylboronic acidElectropolymerizationFlexible film

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MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University

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