Peydecastaing, Jérôme and Bras, Julien
and Vaca-Garcia, Carlos
and Borredon, Marie-Elisabeth
and Iftimie, Nicoleta and Giurginca, Maria and Meghea, Aurelia
NIR Study of Chemically Modified Cellulosic Biopolymers.
(2006)
Molecular Crystals and Liquid Crystals, 448 (1). 115/[717]-122/[724]. ISSN 1542-1406
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 193kB |
Official URL: https://doi.org/10.1080/15421400500385027
Abstract
Near-infrared spectral analysis was useful to quantify the ester content of chemically modified cellulose and lignocellulosics. Two kinds of samples were studied, as long aliphatic-chain cellulose esters and wood sawdust chemically-modified either by anhydrides or by ethylene carbonate. It was possible to determine the degree of substitution (DS) of such samples through a correlation by partial least square (PLS) of second-order derivative of NIR spectra. This technique was efficient even when DS values were low, which is difficult to do by using FTIR. It was also possible to distinguish reagent molecules that were attached to the cellulosic substrate by hydrogen bonding from those linked by covalent bonding.
Item Type: | Article |
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HAL Id: | hal-02081017 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE) Other partners > University Politechnica of Bucharest (ROMANIA) |
Laboratory name: | |
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Deposited On: | 27 Mar 2019 09:56 |
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