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Buckminsterfullerene: A Strong, Covalently Bonded, Reinforcing Filler and Reversible Cross-Linker in the Form of Clusters in a Polymer
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umeå University, Faculty of Science and Technology, Department of Physics.
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2013 (English)In: ACS Macro Letters, ISSN 2161-1653, Vol. 2, no 6, 511-517 p.Article in journal (Refereed) Published
Abstract [en]

A Buckminsterfullerene/polyisoprene (C60/PI) composite was synthesized at high-temperature, high-pressure (HP&HT) conditions. The composite has significantly improved tensile strength and Young’s modulus, by up to 49% and 88% per wt % C60, respectively, which is much higher than for corresponding composites with carbon nanotube (CNT) fillers. The reinforcing action of C60 fillers is different from that of CNTs as C60 becomes covalently bonded to PI chains, and C60 clusters in PI form C60–C60 covalent bonds. The latter are reversible and break by heating at 1 bar, which suggests improved recyclability of the material and indicates that carbon nanostructures can be used as strong reversible cross-linkers (“vulcanizers”) in elastomers.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2013. Vol. 2, no 6, 511-517 p.
Keyword [en]
Buckminsterfullerene, C60, filler, cross-linker, cross-linking, polymer, polyisoprene, high pressure, tensile strength, Youngs modulus, vulcanization
National Category
Chemical Sciences Polymer Technologies
Research subject
URN: urn:nbn:se:umu:diva-71668DOI: 10.1021/mz400171eISI: 000323362900012OAI: diva2:625389
Swedish Research Council, 621-2010-3732

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Available from: 2013-06-04 Created: 2013-06-04 Last updated: 2014-03-10Bibliographically approved

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Yu, JunchunGröbner, GerhardSundqvist, BertilTonpheng, BounphanhAndersson, Ove
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