TEMPO-mediated surface oxidation of cellulose whiskers

By Youssef Habibi, H. Chanzy, M. Vignon. 2006

598 citations recorded by the source corpus.

Cellulose whiskers resulting from HCl acid hydrolysis of tunicin were subjected to TEMPO-mediated oxidation under various conditions and the extent of the resulting oxidation was characterized by Fourier-transform infrared spectroscopy (FT-IR), conductimetry, X-Ray diffraction analysis and transmission electron microscopy (TEM). With degree of oxidation of up to 0.1 the samples kept their initial morphological integrity and native crystallinity, but at their surface the hydroxymethyl groups were selectively converted to carboxylic groups, thus imparting a negative surface charge to the whiskers. When dispersed in water these oxidized whiskers did not flocculate and their suspensions appeared birefringent when viewed between cross polarizers, thus indicating a liquid crystalline behavior.

Subfields: Biomaterials, Biomedical Engineering, Plant Science

View Paper: https://www.semanticscholar.org/paper/fe7e40a434ab6829a8c5760ed41a8d57113a88d7

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In Biomaterials

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In Biomedical Engineering

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Citations in the corpus

• Cellulose nanocrystals as promising adsorbents for the removal of cationic dyes (2014, methodology): “The difference between the molecular weight of an AGU with that of sodium salt of a glucuronic acid moiety corresponds to 36 (Habibi et al. 2006).”
• Excellent chemical and material cellulose from tunicates: diversity in cellulose production yield and chemical and morphological structures from different tunicate species (2014, background): “The tunicate cellulose microfibrils have a lozenge-shaped section (Habibi et al. 2006; Helbert et al. 1998) with two lattice parameters of a = 0.”
• Nanocellulose, a tiny fiber with huge applications. (2016, background): “TEMPO oxidation), and (III) combination of chemical and mechanical treatments [2].”
• A comparative study of Eucalyptus and Pinus radiata pulp fibres as raw materials for production of cellulose nanofibrils (2011, result): “The results re in good agreement with Habibi, Chanzy, and Vignon (2006), ho reported a degree of substitution (DS) of 9.7% of whiskers fter oxidation with a molar ratio of NaOCl/AGU of 0.5.”
• Chemistry and Applications of Nanocrystalline Cellulose and its Derivatives: a Nanotechnology Perspective (2011, methodology): “Schematic of the NCC whiskers before and after TEMPO-mediated oxidation (Habibi et al., 2006).”