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

19 Citations (Scopus)

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

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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.
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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",
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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

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ER -