Carbynoid species in electrochemical polymeric carbon

The composite ‘electrochemical carbon-alkali metal fluoride’ was prepared by electrochemical reductive carbonization of poly(tetrafluoroethylene) or poly(tetrafluoroethylene- co-hexafluoropropene) with alkali metal amalgams. Infrared and UV-Vis spectroscopy of electrochemical carbon in this composit...

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Bibliographic Details
Published in:Synthetic metals 1993-04, Vol.58 (1), p.63-72
Main Authors: Kavan, Ladislav, Dousek, František P
Format: Article
Language:English
Subjects:
Applied sciences
carbon composites
carbyne
Chemical modifications
Chemical reactions and properties
electrochemical carbon
electronic resistivity
Exact sciences and technology
infrared spectroscopy
Organic polymers
Physicochemistry of polymers
UV-Vis spectroscopy
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Summary:The composite ‘electrochemical carbon-alkali metal fluoride’ was prepared by electrochemical reductive carbonization of poly(tetrafluoroethylene) or poly(tetrafluoroethylene- co-hexafluoropropene) with alkali metal amalgams. Infrared and UV-Vis spectroscopy of electrochemical carbon in this composite indicates the presence of carbynoid structures. Doping with I 2, Br 2 and O 2 was followed by the measurement of electronic resistivity. Carbynoid structures in a freshly prepared composite material convert slowly to graphene-like structures by spontaneous solid-state crosslinking, the rate of which is controlled by the type of alkali metal fluoride in the composite. The stability against crosslinking increases in the series as Li
ISSN:0379-6779
1879-3290
DOI:10.1016/0379-6779(93)91118-L