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Unexpected selective alkaline periodate oxidation of chitin for the isolation of chitin nanocrystals

Liu, Peiwen ; Liu, Huan ; Schäfer, Timmy ; Gutmann, Torsten ; Gibhardt, Holger ; Qi, Houjuan ; Tian, Lin ; Zhang, Xizhou Cecily ; Buntkowsky, Gerd ; Zhang, Kai (2022)
Unexpected selective alkaline periodate oxidation of chitin for the isolation of chitin nanocrystals.
In: Green Chemistry, 2021, 23 (2)
doi: 10.26083/tuprints-00020297
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Unexpected selective alkaline periodate oxidation of chitin for the isolation of chitin nanocrystals
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2021
Publisher: Royal Society of Chemistry
Journal or Publication Title: Green Chemistry
Volume of the journal: 23
Issue Number: 2
DOI: 10.26083/tuprints-00020297
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Origin: Secondary publication service
Abstract:

Periodate oxidation reaction occurring directly on chitin has been neglected in polysaccharide chemistry so far. Herein, we present the first direct alkaline periodate oxidation of chitin, which demonstrates at the same time a novel approach for the preparation of chitin nanocrystals (ChNCs). This oxidation is based on an unprecedented selective reaction of non-ordered domains of chitin by the dimeric orthoperiodate ions (H₂I₂O₁₀⁴⁻) as the major species in alkaline surroundings. Nearly 50 wt% of non-ordered regions are dissolved after sequential accelerated partial deacetylation, periodate oxidation and β-alkoxy fragmentation, which allows the isolation of up to 50 wt% of uniform anisotropic zwitterionic ChNCs.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-202974
Classification DDC: 500 Science and mathematics > 540 Chemistry
Divisions: 07 Department of Chemistry > Eduard Zintl-Institut > Physical Chemistry
Date Deposited: 10 Jan 2022 13:43
Last Modified: 20 Mar 2023 08:32
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20297
PPN: 506140458
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