Buckminsterfullerene: A Strong, Covalently Bonded, Reinforcing Filler and Reversible Cross-Linker in the Form of Clusters in a Polymer
2013 (English)In: ACS Macro Letters, ISSN 2161-1653, Vol. 2, no 6, 511-517 p.Article in journal (Refereed) Published
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.
Buckminsterfullerene, C60, filler, cross-linker, cross-linking, polymer, polyisoprene, high pressure, tensile strength, Youngs modulus, vulcanization
Chemical Sciences Polymer Technologies
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-71668DOI: 10.1021/mz400171eISI: 000323362900012OAI: oai:DiVA.org:umu-71668DiVA: diva2:625389
FunderSwedish Research Council, 621-2010-3732
Open Access2013-06-042013-06-042014-03-10Bibliographically approved