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A Raman study of polymerised C60
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- Wågberg, Thomas (author)
- Umeå universitet,Institutionen för fysik
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- Persson, Per-Axel (author)
- Umeå universitet,Institutionen för fysik
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- Sundqvist, Bertil (author)
- Umeå universitet,Institutionen för fysik
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- (creator_code:org_t)
- Springer Science and Business Media LLC, 1997
- 1997
- English.
- In: Applied Physics A. - : Springer Science and Business Media LLC. - 0947-8396 .- 1432-0630. ; 64:3, s. 223-226
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Results of Raman scattering studies on high pressure polymerized and photo polymerized C60 are reported. Although prepared according to different routes the Raman spectra of the two polymeric phases of C60 show a quantitative agreement with respect to mode positions and intensity. We conclude from this that both materials have the same structure at least in the short range order, i.e. the same type of bonding and co-ordination between neighbouring C60 molecules. An investigation of the time dependence of the thermal decomposition of high pressure polymerised C60 is also presented. The rate of decomposition of the polymeric phase is found to be multi-exponential at all temperatures investigated. From an Arrhenius-type analysis of the short time data and the long time data, respectively, the activation energy for thermal dissociation of polymeric bonds was found to increase with time.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Fullerenes
- C60
- Raman spectroscopy
- polymeric fullerenes
- fullerene polymers
- linear molecular chains
- orthorhombic structure
- activation energy
- polymer breakdown
- photopolymer
- high pressure synthesis
- Condensed matter physics
- Kondenserade materiens fysik
- fysik
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Umeå University
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