The physicochemical properties of polyindole / thiol composites

K. S. Ryu, N. G. Park, K. M. Kim, Y. G. Lee, Y. J. Park, S. J. Lee, C. K. Jeong, Jinsoo Joo, S. H. Chang

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Abstract

We synthesized the polyindole (PI) and poly(2,5-dimercapto-1,3,4- thiadiazole) (pDMcT) by chemical oxidation method. The polymerization of PI and pDMcT was confirmed by FT-IR. We have measured the electrochemical properties of the unit cell both before and after charge/discharge experiment. It showed the plateau region around 3.0V in discharge curve's behavior. The specific discharge capacity value of these compositions was saturated after 10th cycle as ∼75mAh/g. We have tried to explain the reaction in PI/thiol composites with various methods. The intensity of the ESR signal increases after charging and the σdc of these composites increases by charging. From the results, it could be found that the formation of unpaired electrons at nitrogen site in PI is confirmed in this system.

Original languageEnglish
Pages (from-to)397-398
Number of pages2
JournalSynthetic Metals
Volume135-136
DOIs
Publication statusPublished - 2003 Apr 4

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Keywords

  • 2,5-dimercapto-1,3,4-thiadiazole
  • Cathode
  • Composite
  • Lithium secondary battery
  • Polyindole
  • Polymer electrode

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Ryu, K. S., Park, N. G., Kim, K. M., Lee, Y. G., Park, Y. J., Lee, S. J., Jeong, C. K., Joo, J., & Chang, S. H. (2003). The physicochemical properties of polyindole / thiol composites. Synthetic Metals, 135-136, 397-398. https://doi.org/10.1016/S0379-6779(02)00648-3