Synthesis of microcellular polypyrrole in a unidirectional freeze-dried polystyrene template and the conversion to microcellular carbon via morphology-retaining carbonization

Young Bum Hong, Hyeonuk Yeo, Yong Mun Choi, Nam Ho You, Seung Hee Lee, Munju Goh

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The facile fabrication of polypyrrole (PPy) foams via vapor phase polymerization using microcellular polystyrene, prepared by unidirectional freeze-drying, as a template was demonstrated. Remarkably, the PPy foams maintained the porous morphology of the template, which exhibited a bamboo-like honeycomb channel structure. In addition, the PPy foams were carbonized at 800 °C with iodine doping and the carbon products showed similar morphologies to that of the precursor. The carbon foams were characterized by Raman spectroscopy and XRD analysis and were confirmed to be amorphous carbon with a nitrogen content of about 7%.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalSynthetic Metals
Volume196
DOIs
StatePublished - Oct 2014

Keywords

  • Conjugated polymer
  • Microcellular
  • Morphology-retaining canonization
  • Polypyrrole

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