University of Oulu

Jaekel, E. E., Sirviö, J. A., Antonietti, M., & Filonenko, S. (2021). One-step method for the preparation of cationic nanocellulose in reactive eutectic media. Green Chemistry, 23(6), 2317–2323.

One-step method for the preparation of cationic nanocellulose in reactive eutectic media

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Author: Jaekel, Esther E.1; Sirviö, Juho Antti2; Antonietti, Markus1;
Organizations: 1Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
2Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, 90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2 MB)
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Language: English
Published: Royal Society of Chemistry, 2021
Publish Date: 2021-05-06


A novel method based on the use of reactive eutectic media for the extraction of cellulose nanocrystals and their functionalization with positively charged functional groups in a one-step procedure is presented. With its ability to form strong hydrogen bonds, the eutectic medium serves as a cellulose-solubilizing agent, while the presence of a Leuckart reagent provides the reactivity toward the reductive amination of carbonyl groups in the cellulose chains. In the proposed method, amorphous cellulose domains are partially dissolved by undergoing aminolysis, resulting in the formation of water-dispersible nanocellulose products with high crystallinity.

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Series: Green chemistry
ISSN: 1463-9262
ISSN-E: 1463-9270
ISSN-L: 1463-9262
Volume: 23
Pages: 2317 - 2323
DOI: 10.1039/D0GC04282J
Type of Publication: A1 Journal article – refereed
Field of Science: 221 Nanotechnology
Funding: This work was financially supported by Max Planck Society and National Key Research. Open Access funding provided by the Max Planck Society.
Copyright information: © 2021 The Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.