Viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose in dispersion and wet-film states

Reina Tanaka, Tsuguyuki Saito, Tuomas Hänninen, Yuko Ono, Minna Hakalahti, Tekla Tammelin, Akira Isogai (Corresponding Author)

    Research output: Contribution to journalArticleScientificpeer-review

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    Abstract

    We report the viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose (NFC) in dispersion and wet-film states. The hemicellulose-rich NFC (hemicellulose neutral sugars 23%, carboxylate 0.2 mmol g-1), prepared from Japanese persimmons, had a core crystallite thickness of 2.3 nm and unit fibril thickness of 4.2 nm. A carboxylate-rich NFC (hemicellulose neutral sugars 7%, carboxylate 0.9 mmol g-1) with crystallite and fibril widths of 2.5 and 3.3 nm, respectively, was used as a reference. The solid-concentration dependencies of the storage moduli of gel-like water dispersions of the hemicellulose-rich NFC were weaker than those of carboxylate-rich NFC, and the dispersions were loosely flocculated even at high salt concentrations and low pH values. The viscoelastic properties of wet NFC films were similar to those of their dispersions; the hemicellulose-rich NFC films were significantly less sensitive to salt concentration and pH and were soft and swollen at high salt concentrations and low pH values.
    Original languageEnglish
    Pages (from-to)2104-2111
    JournalBiomacromolecules
    Volume17
    Issue number6
    DOIs
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

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    Cellulose
    Dispersions
    Cellulose films
    Salts
    Sugars
    Gels
    Elastic moduli
    hemicellulose
    Water

    Cite this

    Tanaka, Reina ; Saito, Tsuguyuki ; Hänninen, Tuomas ; Ono, Yuko ; Hakalahti, Minna ; Tammelin, Tekla ; Isogai, Akira. / Viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose in dispersion and wet-film states. In: Biomacromolecules. 2016 ; Vol. 17, No. 6. pp. 2104-2111.
    @article{5cbfd2c12d7d4bc1a40ef743ca009b27,
    title = "Viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose in dispersion and wet-film states",
    abstract = "We report the viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose (NFC) in dispersion and wet-film states. The hemicellulose-rich NFC (hemicellulose neutral sugars 23{\%}, carboxylate 0.2 mmol g-1), prepared from Japanese persimmons, had a core crystallite thickness of 2.3 nm and unit fibril thickness of 4.2 nm. A carboxylate-rich NFC (hemicellulose neutral sugars 7{\%}, carboxylate 0.9 mmol g-1) with crystallite and fibril widths of 2.5 and 3.3 nm, respectively, was used as a reference. The solid-concentration dependencies of the storage moduli of gel-like water dispersions of the hemicellulose-rich NFC were weaker than those of carboxylate-rich NFC, and the dispersions were loosely flocculated even at high salt concentrations and low pH values. The viscoelastic properties of wet NFC films were similar to those of their dispersions; the hemicellulose-rich NFC films were significantly less sensitive to salt concentration and pH and were soft and swollen at high salt concentrations and low pH values.",
    author = "Reina Tanaka and Tsuguyuki Saito and Tuomas H{\"a}nninen and Yuko Ono and Minna Hakalahti and Tekla Tammelin and Akira Isogai",
    year = "2016",
    doi = "10.1021/acs.biomac.6b00316",
    language = "English",
    volume = "17",
    pages = "2104--2111",
    journal = "Biomacromolecules",
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    }

    Viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose in dispersion and wet-film states. / Tanaka, Reina; Saito, Tsuguyuki; Hänninen, Tuomas; Ono, Yuko; Hakalahti, Minna; Tammelin, Tekla; Isogai, Akira (Corresponding Author).

    In: Biomacromolecules, Vol. 17, No. 6, 2016, p. 2104-2111.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose in dispersion and wet-film states

    AU - Tanaka, Reina

    AU - Saito, Tsuguyuki

    AU - Hänninen, Tuomas

    AU - Ono, Yuko

    AU - Hakalahti, Minna

    AU - Tammelin, Tekla

    AU - Isogai, Akira

    PY - 2016

    Y1 - 2016

    N2 - We report the viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose (NFC) in dispersion and wet-film states. The hemicellulose-rich NFC (hemicellulose neutral sugars 23%, carboxylate 0.2 mmol g-1), prepared from Japanese persimmons, had a core crystallite thickness of 2.3 nm and unit fibril thickness of 4.2 nm. A carboxylate-rich NFC (hemicellulose neutral sugars 7%, carboxylate 0.9 mmol g-1) with crystallite and fibril widths of 2.5 and 3.3 nm, respectively, was used as a reference. The solid-concentration dependencies of the storage moduli of gel-like water dispersions of the hemicellulose-rich NFC were weaker than those of carboxylate-rich NFC, and the dispersions were loosely flocculated even at high salt concentrations and low pH values. The viscoelastic properties of wet NFC films were similar to those of their dispersions; the hemicellulose-rich NFC films were significantly less sensitive to salt concentration and pH and were soft and swollen at high salt concentrations and low pH values.

    AB - We report the viscoelastic properties of core-shell-structured, hemicellulose-rich nanofibrillated cellulose (NFC) in dispersion and wet-film states. The hemicellulose-rich NFC (hemicellulose neutral sugars 23%, carboxylate 0.2 mmol g-1), prepared from Japanese persimmons, had a core crystallite thickness of 2.3 nm and unit fibril thickness of 4.2 nm. A carboxylate-rich NFC (hemicellulose neutral sugars 7%, carboxylate 0.9 mmol g-1) with crystallite and fibril widths of 2.5 and 3.3 nm, respectively, was used as a reference. The solid-concentration dependencies of the storage moduli of gel-like water dispersions of the hemicellulose-rich NFC were weaker than those of carboxylate-rich NFC, and the dispersions were loosely flocculated even at high salt concentrations and low pH values. The viscoelastic properties of wet NFC films were similar to those of their dispersions; the hemicellulose-rich NFC films were significantly less sensitive to salt concentration and pH and were soft and swollen at high salt concentrations and low pH values.

    U2 - 10.1021/acs.biomac.6b00316

    DO - 10.1021/acs.biomac.6b00316

    M3 - Article

    VL - 17

    SP - 2104

    EP - 2111

    JO - Biomacromolecules

    JF - Biomacromolecules

    SN - 1525-7797

    IS - 6

    ER -