E-resources
Peer reviewed
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Giraldo Isaza, Laura; Mortha, Gérard; Marlin, Nathalie; Molton, Florian; Duboc, Carole
Molecules (Basel, Switzerland), 09/2023, Volume: 28, Issue: 18Journal Article
The reaction mechanism of ClOsub.2-mediated TEMPO oxidation was investigated by EPR spectroscopy and UV–Vis spectroscopy in the context of an alternative TEMPO sequence for cellulose fiber oxidation. Without the presence of a cellulosic substrate, a reversibility between TEMPO and its oxidation product, TEMPOsup.+, was displayed, with an effect of the pH and reagent molar ratios. The involvement of HOCl and Clsup.−, formed as byproducts in the oxidation mechanism, was also evidenced. Trapping HOCl partly inhibits the reaction, whereas adding methylglucoside, a cellulose model compound, inhibits the reversibility of the reaction to TEMPO.
![ClO[sub.2]-Mediated Oxidati...](http://api.summon.serialssolutions.com/2.0.0/image/issn/XR4PS5YY4K/1420-3049/medium "ClO[sub.2]-Mediated Oxidation of the TEMPO Radical: Fundamental Considerations of the Catalytic System for the Oxidation of Cellulose Fibers")
