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A Raman study of polymerised C60
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
1997 (English)In: Applied Physics A: Materials Science & Processing, ISSN 0947-8396, E-ISSN 1432-0630, Vol. 64, no 3, 223-226 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
1997. Vol. 64, no 3, 223-226 p.
Keyword [en]
Fullerenes, C60, Raman spectroscopy, polymeric fullerenes, fullerene polymers, linear molecular chains, orthorhombic structure, activation energy, polymer breakdown, photopolymer, high pressure synthesis
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-25675DOI: 10.1007/s003390050470OAI: oai:DiVA.org:umu-25675DiVA: diva2:233093
Note
Invited paper in Special Issue "Polymeric fullerenes", guest editor Hans KuzmanyAvailable from: 2009-08-28 Created: 2009-08-28 Last updated: 2017-12-13

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