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

Authors
Hong, Young BumYeo, HyeonukChoi, Yong-MunYou, Nam-HoLee, Seung HeeGoh, Munju
Issue Date
2014-10
Publisher
ELSEVIER SCIENCE SA
Citation
SYNTHETIC METALS, v.196, pp.33 - 37
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 degrees 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%. (C) 2014 Elsevier B.V. All rights reserved.
Keywords
VAPOR-PHASE POLYMERIZATION; AMORPHOUS-CARBON; SILICA TEMPLATES; FABRICATION; PRECURSORS; COMPOSITE; DENSITY; VAPOR-PHASE POLYMERIZATION; AMORPHOUS-CARBON; SILICA TEMPLATES; FABRICATION; PRECURSORS; COMPOSITE; DENSITY; Polypyrrole; Morphology-retaining canonization; Conjugated polymer; Microcellular
ISSN
0379-6779
URI
https://pubs.kist.re.kr/handle/201004/126297
DOI
10.1016/j.synthmet.2014.07.017
Appears in Collections:
KIST Article > 2014
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