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Regeneration of Cellulose from a Switchable Ionic Liquid: Toward More Sustainable Cellulose Fibers

Kirchberg, Anja; Meier, Michael A. R.

A CO$_{2}$ switchable solvent system is investigated to find an environmentally friendlier way to produce man‐made cellulose fibers. Cellulose solutions with concentrations from 2 wt% to 8 wt%, based on derivative and non‐derivative dissolution approaches, are investigated. Three different switchable solvent systems are tested. After accessing the stability of the produced cellulose solutions, their regeneration is investigated using different alcoholic coagulation media. In order to find a suitable coagulation medium and stable cellulose solution, a dissolution–regeneration cycle is investigated, while trying to minimize the amount of waste by recovering the employed solvents. The process is optimized and the resulting fibers are characterized by infrared (IR) spectroscopy, optical microscopy, as well as scanning electron microscopy.

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Verlagsausgabe §
DOI: 10.5445/IR/1000129854
Veröffentlicht am 05.03.2021
DOI: 10.1002/macp.202000433
Web of Science
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Organische Chemie (IOC)
Institut für Biologische und Chemische Systeme (IBCS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 0025-116X, 1022-1352, 1521-3935
KITopen-ID: 1000129854
Erschienen in Macromolecular chemistry and physics
Verlag Wiley-VCH Verlag
Seiten Art.-Nr.: 2000433
Nachgewiesen in Scopus
Web of Science
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