Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15718
Title: Polycarbonate-carbon nanofibers composites : an electron spin resonance study
Authors: Chipara, M
Brittain, WJ
Lau, KT 
Chipara, MD
Keywords: Carbon nanofibers
Electrical conductivity
Electron spin resonance
Polycarbonate
Issue Date: 2008
Publisher: Trans Tech Publications Ltd
Source: Advanced materials research, 2008, v. 47-50 PART 2, p. 1165-1168 How to cite?
Journal: Advanced materials research 
Abstract: Polycarbonate - carbon nanofibers, containing various concentrations of filler ranging from 0 % to 10 % wt. have been investigated by electron spin resonance. The as obtained electron spin resonance spectra are complex due to the overlap of several resonances originating from the conducting electrons delocalized over the metallic domains of nanotubes, from the free radicals generated within the polymeric matrix during the processing step, from insulating graphite particles, and from catalyst residues (observed as magnetic impurities). The effect of the filler on the resonance line shape is analyzed in detail. The shape of resonance spectrum demonstrates that the resonance line located near g=2.00 originates from conducting electrons delocalized over the metallic domains of nanotubes. Thos line was accurately fitted by a Lorentzian line shape.
URI: http://hdl.handle.net/10397/15718
ISBN: 0878493786
9780878493784
ISSN: 1022-6680 (print)
1662-8985 (online)
Appears in Collections:Conference Paper

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