Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid

Guillermo Reyes; Meri J. Lundahl; Serguei Alejandro-Martín; Luis E. Arteaga-Pérez; Claudia Oviedo; Alistair W.T. King; Orlando J. Rojas

doi:10.1021/acs.biomac.9b01559

Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid

Guillermo Reyes^*, Meri J. Lundahl, Serguei Alejandro-Martín, Luis E. Arteaga-Pérez, Claudia Oviedo, Alistair W.T. King, Orlando J. Rojas

^*Corresponding author for this work

Not published at VTT

Research output: Contribution to journal › Article › Scientific › peer-review

32 Citations (Scopus)

Abstract

Hydrogels of TEMPO-oxidized nanocellulose were stabilized for dry-jet wet spinning using a shell of cellulose dissolved in 1,5-diazabicyclo[4.3.0]non-5-enium propionate ([DBNH][CO₂Et]), a protic ionic liquid (PIL). Coagulation in an acidic water bath resulted in continuous core-shell filaments (CSFs) that were tough and flexible with an average dry (and wet) toughness of ∼11 (2) MJ·m^-3 and elongation of ∼9 (14) %. The CSF morphology, chemical composition, thermal stability, crystallinity, and bacterial activity were assessed using scanning electron microscopy with energy-dispersive X-ray spectroscopy, liquid-state nuclear magnetic resonance, Fourier transform infrared spectroscopy, thermogravimetric analysis, pyrolysis gas chromatography-mass spectrometry, wide-angle X-ray scattering, and bacterial cell culturing, respectively. The coaxial wet spinning yields PIL-free systems carrying on the surface the cellulose II polymorph, which not only enhances the toughness of the filaments but facilities their functionalization.

Original language	English
Pages (from-to)	878-891
Number of pages	14
Journal	Biomacromolecules
Volume	21
Issue number	2
DOIs	https://doi.org/10.1021/acs.biomac.9b01559
Publication status	Published - 2 Jan 2020
MoE publication type	A1 Journal article-refereed

Funding

A.W.T.K. acknowledges the Academy of Finland for funding under the project “WTF-Click-Nano” (no. 311255). G.R. acknowledges the contribution of Becas Chile for supporting the postdoctoral studies at Aalto University, regular research project DIUBB 192212 2/R, and FAPEI UBB. The authors acknowledge the financial support of KAUTE—The Finnish Science Foundation for Technology and Economics, as well as the provision of facilities and technical support by Aalto University at OtaNano—Nanomicroscopy Center (Aalto-NMC). The authors also wish to acknowledge the Chilean National Commission for Scientific and Technological Research (Fondequip grant no. 170077).

Keywords

Cellulose/analysis
Gas Chromatography-Mass Spectrometry/methods
Hydrogels/analysis
Ionic Liquids/analysis
Nanofibers/analysis
Tensile Strength

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10.1021/acs.biomac.9b01559

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title = "Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid",

abstract = "Hydrogels of TEMPO-oxidized nanocellulose were stabilized for dry-jet wet spinning using a shell of cellulose dissolved in 1,5-diazabicyclo[4.3.0]non-5-enium propionate ([DBNH][CO2Et]), a protic ionic liquid (PIL). Coagulation in an acidic water bath resulted in continuous core-shell filaments (CSFs) that were tough and flexible with an average dry (and wet) toughness of ∼11 (2) MJ·m-3 and elongation of ∼9 (14) \%. The CSF morphology, chemical composition, thermal stability, crystallinity, and bacterial activity were assessed using scanning electron microscopy with energy-dispersive X-ray spectroscopy, liquid-state nuclear magnetic resonance, Fourier transform infrared spectroscopy, thermogravimetric analysis, pyrolysis gas chromatography-mass spectrometry, wide-angle X-ray scattering, and bacterial cell culturing, respectively. The coaxial wet spinning yields PIL-free systems carrying on the surface the cellulose II polymorph, which not only enhances the toughness of the filaments but facilities their functionalization.",

keywords = "Cellulose/analysis, Gas Chromatography-Mass Spectrometry/methods, Hydrogels/analysis, Ionic Liquids/analysis, Nanofibers/analysis, Tensile Strength",

author = "Guillermo Reyes and Lundahl, \{Meri J.\} and Serguei Alejandro-Mart{\'i}n and Arteaga-P{\'e}rez, \{Luis E.\} and Claudia Oviedo and King, \{Alistair W.T.\} and Rojas, \{Orlando J.\}",

year = "2020",

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doi = "10.1021/acs.biomac.9b01559",

language = "English",

volume = "21",

pages = "878--891",

journal = "Biomacromolecules",

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Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid. / Reyes, Guillermo; Lundahl, Meri J.; Alejandro-Martín, Serguei et al.
In: Biomacromolecules, Vol. 21, No. 2, 02.01.2020, p. 878-891.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

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AU - Lundahl, Meri J.

AU - Alejandro-Martín, Serguei

AU - Arteaga-Pérez, Luis E.

AU - Oviedo, Claudia

AU - King, Alistair W.T.

AU - Rojas, Orlando J.

PY - 2020/1/2

Y1 - 2020/1/2

N2 - Hydrogels of TEMPO-oxidized nanocellulose were stabilized for dry-jet wet spinning using a shell of cellulose dissolved in 1,5-diazabicyclo[4.3.0]non-5-enium propionate ([DBNH][CO2Et]), a protic ionic liquid (PIL). Coagulation in an acidic water bath resulted in continuous core-shell filaments (CSFs) that were tough and flexible with an average dry (and wet) toughness of ∼11 (2) MJ·m-3 and elongation of ∼9 (14) %. The CSF morphology, chemical composition, thermal stability, crystallinity, and bacterial activity were assessed using scanning electron microscopy with energy-dispersive X-ray spectroscopy, liquid-state nuclear magnetic resonance, Fourier transform infrared spectroscopy, thermogravimetric analysis, pyrolysis gas chromatography-mass spectrometry, wide-angle X-ray scattering, and bacterial cell culturing, respectively. The coaxial wet spinning yields PIL-free systems carrying on the surface the cellulose II polymorph, which not only enhances the toughness of the filaments but facilities their functionalization.

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KW - Cellulose/analysis

KW - Gas Chromatography-Mass Spectrometry/methods

KW - Hydrogels/analysis

KW - Ionic Liquids/analysis

KW - Nanofibers/analysis

KW - Tensile Strength

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ER -

Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid

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Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid

Abstract

Funding

Keywords

Access to Document

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