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C. Yang, and P. Liu, “Water-Dispersed Conductive Poly- pyrroles Doped with Lignosulfonate and the Weak Tem- perature Dependence of Electrical Conductivity,” Indus- trial & Engineering Chemistry Research, Vol. 48. No. 21, 2009, pp. 9498-9503. doi:10.1021/ie900189j

has been cited by the following article:

• TITLE: Effect of Acidic Catalyst on Properties of Novel Conductive Copolymer Films Made of Pyrrole and Formyl Pyrrole

  AUTHORS: Yusuke Hoshina, Takaomi Kobayashi

  KEYWORDS: Conductive Polymer; Copolymerization; Pyrrole; 2-Formyl Pyrrole; Trifluoroacetic Acid;Trichloroacetic Acid; Conductivity

  JOURNAL NAME: Engineering, Vol.4 No.3, March 31, 2012

  ABSTRACT: Effect of acidic catalysis having carboxylic acid group was studied on properties of conductive copolymer films made of pyrrole (Py) and 2-formyl pyrrole (FPy). It was noted that trifluoroacetic acid (TFA) and trichloroacetic acid (TCA) were suitable for the preparation of copolymer films, which showed good properties in its strength and electrical conductivity of the copolymer films. When the concentration of TFA or TCA was increased in the monomer feed, the copolymerization yield became higher and the obtained films showed electrical conductivity in the range of 10–4 - 10–3 S/cm. FT-IR and UV-Vis spectra confirmed the formation of conjugate chemical structure in the copolymer film.