Dynamic covalent diarylbibenzofuranone-modified nanocellulose

Mechanochromic behaviour and application in self-healing polymer composites

Keiichi Imato, J. C. Natterodt, J. Sapkota, R. Goseki, C. Weder, A. Takahara, H. Otsuka

    Research output: Contribution to journalArticle

    25 Citations (Scopus)

    Abstract

    The surface of cellulose nanocrystals (CNCs) was modified with a scissile but reversibly recombinable dynamic covalent mechanophore, and the activation of the mechanophore on the CNC surface in bulk was investigated. The recombination behaviour of the activated surface-modified mechanophore exhibited high sensitivity to mechanical stress because of the limited molecular mobility. The modified CNCs could be used to effectively reinforce a self-healable polymer containing similar dynamic covalent linkages through the formation of reversible covalent bonds between the CNC surfaces and the polymer matrix, while the nanocomposite retained the ability to heal. The results of the present study appear to be broadly useful for designing composite materials with fascinating functional properties such as damage self-reporting and self-healing.

    Original languageEnglish
    Pages (from-to)2115-2122
    Number of pages8
    JournalPolymer Chemistry
    Volume8
    Issue number13
    DOIs
    Publication statusPublished - 2017 Apr 7

    Fingerprint

    Cellulose
    Nanoparticles
    Nanocrystals
    Polymers
    Composite materials
    Nanocomposites
    Mechanical Stress
    Covalent bonds
    Polymer matrix
    Genetic Recombination
    Chemical activation

    ASJC Scopus subject areas

    • Bioengineering
    • Biochemistry
    • Biomedical Engineering
    • Polymers and Plastics
    • Organic Chemistry

    Cite this

    Dynamic covalent diarylbibenzofuranone-modified nanocellulose : Mechanochromic behaviour and application in self-healing polymer composites. / Imato, Keiichi; Natterodt, J. C.; Sapkota, J.; Goseki, R.; Weder, C.; Takahara, A.; Otsuka, H.

    In: Polymer Chemistry, Vol. 8, No. 13, 07.04.2017, p. 2115-2122.

    Research output: Contribution to journalArticle

    Imato, Keiichi ; Natterodt, J. C. ; Sapkota, J. ; Goseki, R. ; Weder, C. ; Takahara, A. ; Otsuka, H. / Dynamic covalent diarylbibenzofuranone-modified nanocellulose : Mechanochromic behaviour and application in self-healing polymer composites. In: Polymer Chemistry. 2017 ; Vol. 8, No. 13. pp. 2115-2122.
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    AU - Weder, C.

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