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

*この研究の対応する著者

    研究成果査読

    55 被引用数 (Scopus)

    抄録

    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.

    本文言語English
    ページ(範囲)2115-2122
    ページ数8
    ジャーナルPolymer Chemistry
    8
    13
    DOI
    出版ステータスPublished - 2017 4 7

    ASJC Scopus subject areas

    • バイオエンジニアリング
    • 生化学
    • 生体医工学
    • ポリマーおよびプラスチック
    • 有機化学

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