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NIR Study of Chemically Modified Cellulosic Biopolymers

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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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
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)
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Deposited On:27 Mar 2019 09:56

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