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Esterification and amidation for grafting long aliphatic chains on to cellulose nanocrystals: a comparative study
Laboratoire de Chimie Organométallique et Macromoléculaire – Matériaux Composites, Faculty of Sciences and Technologies of Marrakesh, Cadi Ayyad University, Avenue Abdekrim Elkhattabi, BP549, Marrakech, Morocco.
Laboratoire de Chimie Organométallique et Macromoléculaire – Matériaux Composites, Faculty of Sciences and Technologies of Marrakesh, Cadi Ayyad University, Avenue Abdekrim Elkhattabi, BP549, Marrakech, Morocco.ORCID iD: 0000-0001-8810-2711
The International School of Paper, Print Media and Biomaterials (Pagora), Grenoble Institute of Technology.
Laboratoire Sciences des Matériaux et Environment, LMSE, University of Sfax.
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2015 (English)In: Research on chemical intermediates (Print), ISSN 0922-6168, E-ISSN 1568-5675, Vol. 41, no 7, p. 4293-4310Article in journal (Refereed) Published
Abstract [en]

Heterogeneous modification of cellulose nanocrystals (CNC) has been achieved by using esterification and amidification to attach long aliphatic chains. Long-chain aliphatic acid chlorides and amines were used as grafting reagents. Surface grafting with acyl chains was confirmed by Fourier-transform infrared spectroscopy, elemental analysis, and X-ray photoelectron spectroscopy. It was found that the degree of substitution (DS) of the surface is highly dependent on the method of modification. Irrespective of grafting approach, the modified CNC was found to be hydrophobic after modification, as attested by contact angle measurement. The main emphasis was on the correlation between DS and the extent of surface grafting

Place, publisher, year, edition, pages
2015. Vol. 41, no 7, p. 4293-4310
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-6948DOI: 10.1007/s11164-014-1530-zLocal ID: 5464df74-84fd-498f-a89e-493e4d48b8b5OAI: oai:DiVA.org:ltu-6948DiVA, id: diva2:979834
Note
Upprättat; 2015; 20160212 (abdhaj)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-02-13Bibliographically approved

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Hajlane, Abdelghani

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