Synthesis and Characterization of a Novel Self-Doped Water-Soluble Conducting Polymer

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  • YANO Hirokazu
    Graduate Faculty of Interdisciplinary Research, University of Yamanashi Organic Materials Research Lab., Tosoh Corporation
  • NISHIYAMA Masakazu
    Organic Materials Research Lab., Tosoh Corporation
  • HAYASHI Sadayoshi
    Organic Materials Research Lab., Tosoh Corporation
  • KUDO Kazuki
    Graduate Faculty of Interdisciplinary Research, University of Yamanashi
  • OKUZAKI Hidenori
    Graduate Faculty of Interdisciplinary Research, University of Yamanashi

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Other Title
  • 新規自己ドープ型水溶性導電性高分子の合成と特性評価
  • シンキ ジコ ドープガタ スイヨウセイ ドウデンセイ コウブンシ ノ ゴウセイ ト トクセイ ヒョウカ

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Description

A novel self-doped water-soluble conducting polymer (S-PEDOT) was synthesized by oxidative polymerization of 3,4-ethylenedioxythiophene (EDOT) having an alkylsulfonate side chain. The S-PEDOT was completely dissolved in water. The weight average molecular weight (Mw) and molecular weight distribution were 22,400 g/mol and 15.4, respectively. The S-PEDOT was the paracrystalline polymer with the degree of crystallinity (Xc) and crystallite size (D100) of 68.2% and 7.1 nm, respectively. According to the values of sheet resistance (Rs = 1670~201 Ω/□) and total light transmittance (TT = 94.2~69.2%) of the S-PEDOT films with different thicknesses (d = 33~158 nm), the figure-of-merit (FOM) as a transparent electrode was found to be 4.1. It was also found that the electrical conductivity of the S-PEDOT film attained values as high as 315 S/cm.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 75 (6), 607-612, 2018-11-25

    The Society of Polymer Science, Japan

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