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, J. Joo, S. H. Chang

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


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
Publication statusPublished - 2003 Apr 4


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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry


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