Observation of immobile regions in natural rubber at ambient temperature by solid-state C-13 CP/MAS NMR spectroscopy

F.H. Larsen, T. Rasmussen, Walther Batsberg Pedersen, N.C. Nielsen, H.J. Jakobsen

    Research output: Contribution to journalJournal articleResearch

    Abstract

    Employing C-13 CP/MAS NMR spectroscopy, the existence of immobile regions in natural rubber (cis-1,4-polyisoprene) corresponding to a few percent of the monomer units has been detected at ambient temperature. For synthetic rubbers no immobile regions have been detected at all. Applying different physical and chemical treatments to natural rubber it is shown that mastication, gamma-irradiation, and increasing the temperature, slightly above the ambient, reduce the amount of immobile regions. (C) 1999 Elsevier Science Ltd. All rights reserved.
    Original languageEnglish
    JournalPolymer
    Volume40
    Issue number25
    Pages (from-to)7013-7017
    ISSN0032-3861
    DOIs
    Publication statusPublished - 1999

    Cite this

    Larsen, F. H., Rasmussen, T., Pedersen, W. B., Nielsen, N. C., & Jakobsen, H. J. (1999). Observation of immobile regions in natural rubber at ambient temperature by solid-state C-13 CP/MAS NMR spectroscopy. Polymer, 40(25), 7013-7017. https://doi.org/10.1016/S0032-3861(99)00053-1