1
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Reyes G, Ajdary R, Kankuri E, Kaschuk JJ, Kosonen H, Rojas OJ. Cellulose gelation in NaOH (aq) by CO 2 absorption: Effects of holding time and concentration on biomaterial development. Carbohydr Polym 2023; 302:120355. [PMID: 36604045 DOI: 10.1016/j.carbpol.2022.120355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/11/2022] [Accepted: 11/12/2022] [Indexed: 11/24/2022]
Abstract
We address the limited solubility and early onset of gelation of aqueous sodium hydroxide to position it as a preferred green solvent for cellulose. For this purpose, we expand the concentration window (up to 12 wt%) by using a CO2-depleted air and adjusting the time the dope remains in the given atmosphere, before further processing (holding time) and regeneration conditions. Cellulose solutions are extruded following characteristic (rheology and extrusion) parameters to yield aligned filaments reaching tenacities up to 2.3 cN·dtex-1, similar to that of viscose. Further material demonstrations are achieved by direct ink writing of auxetic biomedical meshes (Poisson's ratio of -0.2, tensile strength of 115 kPa) and transparent films, which achieved a tensile strength and toughness of 47 MPa and 590 kJ·m-3, respectively. The results suggest an excellent outlook for cellulose transformation into bioproducts. Key to this development is the control of the gelation ensuing solution flow and polymer alignment, which depend on CO2 absorption, cellulose concentration, and holding time.
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Affiliation(s)
- Guillermo Reyes
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Espoo, Finland.
| | - Rubina Ajdary
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Espoo, Finland; Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland.
| | - Joice J Kaschuk
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Espoo, Finland; Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
| | - Harri Kosonen
- UPM Pulp Research and Innovations, UPM, Paloasemantie 19, FI-53200 Lappeenranta, Finland.
| | - Orlando J Rojas
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076 Espoo, Finland; Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry and Department of Wood Science, 2360 East Mall, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
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2
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Quintana AA, Sztapka AM, Santos Ebinuma VDC, Agatemor C. Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future? Angew Chem Int Ed Engl 2022; 61:e202205609. [PMID: 35789078 DOI: 10.1002/anie.202205609] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Indexed: 12/17/2022]
Abstract
Ionic liquids (ILs) and deep eutectic solvents (DESs) debuted with a promise of a superior sustainability footprint due to their low vapor pressure. However, their toxicity and high cost compromise this footprint, impeding their real-world applications. Fortunately, their property tunability through a rational selection of precursors, including bioderived ones, provides a strategy to ameliorate toxicity, lower cost, and endow new functions. This Review discusses whether ILs and DESs are sustainable solvents and how they contribute to sustainable chemical processes.
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Affiliation(s)
| | | | - Valéria de Carvalho Santos Ebinuma
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Christian Agatemor
- Department of Chemistry, University of Miami, Coral Gables, FL 33124, USA.,Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL 33136, USA
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3
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Agatemor C, Quintana AA, Sztapka LM, Ebinuma VDCS. Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: a Fad or the Future? Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christian Agatemor
- University of Miami - Coral Gables Campus: University of Miami Chemistry 1301 Memorial Dr 33146 Coral Gables UNITED STATES
| | - Aline Andrea Quintana
- University of Miami - Coral Gables Campus: University of Miami Chemistry UNITED STATES
| | - Lani Maria Sztapka
- University of Miami - Coral Gables Campus: University of Miami Chemistry UNITED STATES
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4
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Zahra H, Selinger J, Sawada D, Ogawa Y, Orelma H, Ma Y, Kumagai S, Yoshioka T, Hummel M. Evaluation of Keratin-Cellulose Blend Fibers as Precursors for Carbon Fibers. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:8314-8325. [PMID: 35847521 PMCID: PMC9275789 DOI: 10.1021/acssuschemeng.2c00976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
One main challenge to utilize cellulose-based fibers as the precursor for carbon fibers is their inherently low carbon yield. This study aims to evaluate the use of keratin in chicken feathers, a byproduct of the poultry industry generated in large quantities, as a natural charring agent to improve the yield of cellulose-derived carbon fibers. Keratin-cellulose composite fibers are prepared through direct dissolution of the pulp and feather keratin in the ionic liquid 1,5-diazabicyclo[4.3.0]non-5-enium acetate ([DBNH]OAc) and subsequent dry jet wet spinning (so-called Ioncell process). Thermogravimetric analysis reveals that there is an increase in the carbon yield by ∼53 wt % with 30 wt % keratin incorporation. This increase is comparable to the one observed for lignin-cellulose composite fibers, in which lignin acts as a carbon booster due to its higher carbon content. Keratin, however, reduces the mechanical properties of cellulose precursor fibers to a lesser extent than lignin. Keratin introduces nitrogen and induces the formation of pores in the precursor fibers and the resulting carbon fibers. Carbon materials derived from the keratin-cellulose composite fiber show potential for applications where nitrogen doping and pores or voids in the carbon are desirable, for example, for low-cost bio-based carbons for energy harvest or storage.
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Affiliation(s)
- Hilda Zahra
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland
| | - Julian Selinger
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland
- Institute
of Bioproducts and Paper Technology, Graz
University of Technology, Inffeldgasse 23, 8010 Graz, Austria
| | - Daisuke Sawada
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland
| | - Yu Ogawa
- Univ.
Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France
| | - Hannes Orelma
- VTT
Technical Research Centre of Finland Ltd., Biomaterial Processing and Products, Tietotie 4E, 02044 Espoo, Finland
| | - Yibo Ma
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland
| | - Shogo Kumagai
- Graduate
School of Environmental Studies, Tohoku
University, 6-6-07 Aoba,
Aramaki-aza, Aoba-ku, 980-8579 Sendai, Japan
- Division
for the Establishment of Frontier Sciences of Organization for Advanced
Studies, Tohoku University, 2-1-1 Katahira, Aoba-ku, 980-8577 Sendai, Japan
| | - Toshiaki Yoshioka
- Graduate
School of Environmental Studies, Tohoku
University, 6-6-07 Aoba,
Aramaki-aza, Aoba-ku, 980-8579 Sendai, Japan
| | - Michael Hummel
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, 02150 Espoo, Finland
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5
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Fiber Spinning from Cellulose Solutions in Imidazolium Ionic Liquids: Effects of Natural Antioxidants on Molecular Weight, Dope Discoloration, and Yellowing Behavior. FIBERS 2022. [DOI: 10.3390/fib10060050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Spinning of cellulosic fibers requires the prior dissolution of cellulose. 3-Alkyl-1-methylimidazolium ionic liquids have proven to be suitable solvents for that purpose, but the degradation of cellulose in the spinning dope can be severe. Suitable stabilizers are therefore required that prevent cellulose degradation, but do not adversely affect spinnability or the long-term yellowing behavior of the fibers. A group of twelve renewables-based antioxidants was selected for stabilizing 5% cellulose solutions in the ionic liquids and their effects on cellulose integrity, dope discoloration, and aging behavior were tested by gel permeation chromatography (GPC) and ISO brightness measurements. Propyl gallate (a gallic acid derivative), hydroxytyrosol (from olives), and tocopheramines (a vitamin E derivative) performed best in the three test categories, minimizing both cellulose degradation, chromophore formation in the spinning dope, and yellowing upon accelerating aging of the spun fibers. The use of these stabilizers for cellulose solutions in the imidazolium-based solvent system can therefore be recommended from the point of view of both performance and sustainability.
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6
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Reyes G, Pacheco CM, Isaza-Ferro E, González A, Pasquier E, Alejandro-Martín S, Arteaga-Peréz LE, Carrillo RR, Carrillo-Varela I, Mendonça RT, Flanigan C, Rojas OJ. Upcycling agro-industrial blueberry waste into platform chemicals and structured materials for application in marine environments. GREEN CHEMISTRY : AN INTERNATIONAL JOURNAL AND GREEN CHEMISTRY RESOURCE : GC 2022; 24:3794-3804. [PMID: 35694220 PMCID: PMC9086861 DOI: 10.1039/d2gc00573e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/25/2022] [Indexed: 06/15/2023]
Abstract
Blueberry pruning waste (BPw), sourced as residues from agroforestry operations in Chile, was used to produce added-value products, including platform chemicals and materials. BPw fractionation was implemented using biobased solvents (γ-valerolactone, GVL) and pyrolysis (500 °C), yielding solid fractions that are rich in phenols and antioxidants. The liquid fraction was found to be enriched in sugars, acids, and amides. Alongside, filaments and 3D-printed meshes were produced via wet spinning and Direct-Ink-Writing (DIW), respectively. For the latter purpose, BPw was dissolved in an ionic liquid, 1-ethyl-3-methylimidazolium acetate ([emim][OAc]), and regenerated into lignocellulose filaments with highly aligned nanofibrils (wide-angle X-ray scattering) that simultaneously showed extensibility (wet strain as high as 39%). BPw-derived lignocellulose filaments showed a tenacity (up to 2.3 cN dtex-1) that is comparable to that of rayon fibers and showed low light reflectance (R ES factor <3%). Meanwhile, DIW of the respective gels led to meshes with up to 60% wet stretchability. The LCF and meshes were demonstrated to have reliable performance in marine environments. As a demonstration, we show the prospects of replacing plastic cords and other materials used to restore coral reefs on the coast of Mexico.
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Affiliation(s)
- Guillermo Reyes
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Espoo Finland
| | - Claudia M Pacheco
- Facultad de Ingenierías, Universidad Cooperativa de Colombia Cra 22 No. 7-06 sur Villavicencio Colombia
| | - Estefania Isaza-Ferro
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Espoo Finland
| | - Amaidy González
- Laboratory of Thermal and Catalytic Processes, Facultad de Ingeniería, Universidad del Bío-Bío Av. Collao 1202 Concepción Chile
| | - Eva Pasquier
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Espoo Finland
- Université Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering) LGP2 F-38000 Grenoble France
| | - Serguei Alejandro-Martín
- Laboratorio de Cromatografía Gaseosa y Pirólisis Analítica, Departamento de Ingeniería en Maderas, Universidad del Bío-Bío Av.Collao 1202, Casilla 5-C Concepción Chile
| | - Luis E Arteaga-Peréz
- Laboratory of Thermal and Catalytic Processes, Facultad de Ingeniería, Universidad del Bío-Bío Av. Collao 1202 Concepción Chile
| | - Romina R Carrillo
- Facultad de Ciencias Químicas, Depto. Química Analítica e Inorgánica, Universidad de Concepción Concepción Chile
| | - Isabel Carrillo-Varela
- Laboratorio de Recursos Renovables, Centro de Biotecnología, Universidad de Concepción, Concepción Casilla 160-C Concepción Chile
| | - Regis Teixeira Mendonça
- Centro de Investigación de Polímeros Avanzados, CIPA, Avenida Collao 1202, Edificio de Laboratorios Concepción 4030000 Chile
- Facultad de Ciencias Forestales, Universidad de Concepción Casilla 160-C Concepción Chile
| | - Colleen Flanigan
- Zoe - A Living Sea Sculpture in Cozumel, Av. Rafael E. Melgar 77688 San Miguel de Cozumel Q.R. Mexico
| | - Orlando J Rojas
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University FI-00076 Espoo Finland
- Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry and Department of Wood Science, 2360 East Mall, The University of British Columbia Vancouver BC V6T 1Z3 Canada
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7
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Solubility and spinnability of cellulose-lignin blends in specific ionic liquids. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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8
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Beaumont M, Jusner P, Gierlinger N, King AWT, Potthast A, Rojas OJ, Rosenau T. Unique reactivity of nanoporous cellulosic materials mediated by surface-confined water. Nat Commun 2021; 12:2513. [PMID: 33947852 PMCID: PMC8097012 DOI: 10.1038/s41467-021-22682-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 03/21/2021] [Indexed: 02/02/2023] Open
Abstract
The remarkable efficiency of chemical reactions is the result of biological evolution, often involving confined water. Meanwhile, developments of bio-inspired systems, which exploit the potential of such water, have been so far rather complex and cumbersome. Here we show that surface-confined water, inherently present in widely abundant and renewable cellulosic fibres can be utilised as nanomedium to endow a singular chemical reactivity. Compared to surface acetylation in the dry state, confined water increases the reaction rate and efficiency by 8 times and 30%, respectively. Moreover, confined water enables control over chemical accessibility of selected hydroxyl groups through the extent of hydration, allowing regioselective reactions, a major challenge in cellulose modification. The reactions mediated by surface-confined water are sustainable and largely outperform those occurring in organic solvents in terms of efficiency and environmental compatibility. Our results demonstrate the unexploited potential of water bound to cellulosic nanostructures in surface esterifications, which can be extended to a wide range of other nanoporous polymeric structures and reactions.
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Affiliation(s)
- Marco Beaumont
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Aalto, Finland.
| | - Paul Jusner
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria
| | - Notburga Gierlinger
- Institute for Biophysics, Department of Nanobiotechnology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Alistair W T King
- Materials Chemistry Division, Department of Chemistry, University of Helsinki, Helsinki, Finland
| | - Antje Potthast
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria
| | - Orlando J Rojas
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Aalto, Finland
- Bioproducts Institute, Departments of Chemical and Biological Engineering, Chemistry and Wood Science, University of British Columbia, Vancouver, BC, Canada
| | - Thomas Rosenau
- Department of Chemistry, Institute of Chemistry for Renewable Resources, University of Natural Resources and Life Sciences Vienna (BOKU), Tulln, Austria.
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland.
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9
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End-of-Life Options for (Bio)degradable Polymers in the Circular Economy. ADVANCES IN POLYMER TECHNOLOGY 2021. [DOI: 10.1155/2021/6695140] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
End-of-life options for plastics include recycling and energy recovery (incineration). Taking into account the polymeric waste, recycling is the intentional action that is aimed at reducing the amount of waste deposited in landfills by industrial use of this waste to obtain raw materials and energy. The incineration of waste leads to recovery of the energy only. Recycling methods divide on mechanical (reuse of waste as a full-valuable raw material for further processing), chemical (feedstock recycling), and organic (composting and anaerobic digestion). The type of recycling is selected in terms of the polymeric material, origin of the waste, possible toxicity of the waste, and its flammability. The (bio)degradable polymers show the suitability for every recycling methods. But recycling method should be used in such a form that it is economically justified in a given case. Organic recycling in a circular economy is considered to be the most appropriate technology for the disposal of compostable waste. It is addressed for plastics capable for industrial composting such as cellulose films, starch blends, and polyesters. The biological treatment of organic waste leads also to a decrease of landfills and thereby reducing methane emissions from them. If we add to their biodegradability the absence of toxicity, we have a biotechnological product of great industrial interest. The paper presents the overview on end-of-life options useful for the (bio)degradable polymers. The principles of the circular economy and its today development were also discussed.
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10
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Xu P, Zhang D, Shao Z, Chen D. Cellulose acetate‐based separators prepared by a reversible acetylation process for high‐performance lithium‐ion batteries. J Appl Polym Sci 2021. [DOI: 10.1002/app.50738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pengcheng Xu
- Beijing Engineering Research Center of Cellulose and Its Derivatives, School of Materials Science and Engineering Beijing Institute of Technology Beijing P.R. China
| | - Dalun Zhang
- Beijing Engineering Research Center of Cellulose and Its Derivatives, School of Materials Science and Engineering Beijing Institute of Technology Beijing P.R. China
| | - Ziqiang Shao
- Beijing Engineering Research Center of Cellulose and Its Derivatives, School of Materials Science and Engineering Beijing Institute of Technology Beijing P.R. China
| | - Dejia Chen
- Beijing Engineering Research Center of Cellulose and Its Derivatives, School of Materials Science and Engineering Beijing Institute of Technology Beijing P.R. China
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11
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Zahra H, Sawada D, Guizani C, Ma Y, Kumagai S, Yoshioka T, Sixta H, Hummel M. Close Packing of Cellulose and Chitosan in Regenerated Cellulose Fibers Improves Carbon Yield and Structural Properties of Respective Carbon Fibers. Biomacromolecules 2020; 21:4326-4335. [PMID: 32870661 PMCID: PMC7608939 DOI: 10.1021/acs.biomac.0c01117] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/01/2020] [Indexed: 01/10/2023]
Abstract
A low carbon yield is a major limitation for the use of cellulose-based filaments as carbon fiber precursors. The present study aims to investigate the use of an abundant biopolymer chitosan as a natural charring agent particularly on enhancing the carbon yield of the cellulose-derived carbon fiber. The ionic liquid 1,5-diazabicyclo[4.3.0]non-5-enium acetate ([DBNH]OAc) was used for direct dissolution of cellulose and chitosan and to spin cellulose-chitosan composite fibers through a dry-jet wet spinning process (Ioncell). The homogenous distribution and tight packing of cellulose and chitosan revealed by X-ray scattering experiments enable a synergistic interaction between the two polymers during the pyrolysis reaction, resulting in a substantial increase of the carbon yield and preservation of mechanical properties of cellulose fiber compared to other cobiopolymers such as lignin and xylan.
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Affiliation(s)
- Hilda Zahra
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, Espoo 02150, Finland
| | - Daisuke Sawada
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, Espoo 02150, Finland
| | - Chamseddine Guizani
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, Espoo 02150, Finland
| | - Yibo Ma
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, Espoo 02150, Finland
| | - Shogo Kumagai
- Graduate
School of Environmental Studies, Tohoku
University, 6-6-07 Aoba, Aramaki-aza, Aoba-ku, Sendai 980-8579, Japan
| | - Toshiaki Yoshioka
- Graduate
School of Environmental Studies, Tohoku
University, 6-6-07 Aoba, Aramaki-aza, Aoba-ku, Sendai 980-8579, Japan
| | - Herbert Sixta
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, Espoo 02150, Finland
| | - Michael Hummel
- Department
of Bioproducts and Biosystems, Aalto University, Vuorimiehentie 1, Espoo 02150, Finland
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12
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Reyes G, Lundahl MJ, Alejandro-Martín S, Arteaga-Pérez LE, Oviedo C, King AWT, Rojas OJ. Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid. Biomacromolecules 2020; 21:878-891. [PMID: 31895545 DOI: 10.1021/acs.biomac.9b01559] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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.
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Affiliation(s)
- Guillermo Reyes
- Departamento de Ingeniería en Maderas , Universidad del Bı́o-Bı́o , Av. Collao 1202, Casilla 5-C , Concepción , Chile
| | - Meri J Lundahl
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Espoo 02150 , Finland
| | - Serguei Alejandro-Martín
- Departamento de Ingeniería en Maderas , Universidad del Bı́o-Bı́o , Av. Collao 1202, Casilla 5-C , Concepción , Chile.,Nanomaterials and Catalysts for Sustainable Processes (NanoCatpPS) , Universidad del Bı́o-Bı́o , Av. Collao 1202, Casilla 5-C , Concepción 4051381 , Chile
| | - Luis E Arteaga-Pérez
- Departamento de Ingeniería en Maderas , Universidad del Bı́o-Bı́o , Av. Collao 1202, Casilla 5-C , Concepción , Chile.,Nanomaterials and Catalysts for Sustainable Processes (NanoCatpPS) , Universidad del Bı́o-Bı́o , Av. Collao 1202, Casilla 5-C , Concepción 4051381 , Chile
| | - Claudia Oviedo
- Departamento de Química , Universidad del Bı́o-Bı́o , Av. Collao 1202, Casilla 5-C , Concepción 4051381 , Chile
| | - Alistair W T King
- Materials Chemistry Division, Department of Chemistry , University of Helsinki , Helsinki 00100 , Finland
| | - Orlando J Rojas
- Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering , Aalto University , Espoo 02150 , Finland.,Departments of Chemical & Biological Engineering, Chemistry and Wood Science , The University of British Columbia , 2360 East Mall , Vancouver BC V6T 1Z3 , Canada
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13
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Driver GW, Kilpeläinen IA. Irregular solution thermodynamics of wood pulp in the superbase ionic liquid [ m-TBDH][AcO]. RSC Adv 2020; 10:42200-42203. [PMID: 35516785 PMCID: PMC9057846 DOI: 10.1039/d0ra08892g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 11/12/2020] [Indexed: 12/27/2022] Open
Abstract
Knowledge of solution thermodynamics is fundamental for solution control and solvent selection processes. Herein, experimentally determined thermodynamic quantities for solutions of wood pulp (hardwood dissolving pulp, i.e. cellulose) in [m-TBDH][AcO] are presented. Model-free activities (ai,j) and associated mass fraction (wi,j) activity coefficients (Ωi,j), are determined to quantify inherent solution non-ideality. Access to the Gibbs energy of mixing, Gmix, in combination with associated partial molar thermodynamic quantities, reveal strong enthalpically favourable (exothermic) interactions due to solvent-j and solute-i contact-encounters. Onset of an entropy driven phase instability appears at increased temperatures as excess entropic contributions dominate solvation character of the irregular solutions formed. Thermochemical analysis of cellulose dissolution character in the superbase containing protic ionic liquid [m-TBDH][AcO] reveals lower critical solution temperature (LCST) behaviour.![]()
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Affiliation(s)
- Gordon W. Driver
- Materials Chemistry Division
- Department of Chemistry
- University of Helsinki
- Finland
| | - Ilkka A. Kilpeläinen
- Materials Chemistry Division
- Department of Chemistry
- University of Helsinki
- Finland
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Yuan C, Shi W, Chen P, Chen H, Zhang L, Hu G, Jin L, Xie H, Zheng Q, Lu S. Dissolution and transesterification of cellulose in γ-valerolactone promoted by ionic liquids. NEW J CHEM 2019. [DOI: 10.1039/c8nj03505a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ionic liquids act as promoters for the dissolution of cellulose in GVL and also as catalysts for cellulose derivatization in GVL, providing a green and effective solvent system for cellulose processing and derivatization.
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