Title :

Substitution degree and fatty chain length influence on structure and properties of fatty acid cellulose esters

Author(s) :

Duchatel-Crépy, Lucie [Auteur]
Joly, Nicolas [Auteur]
Martin, Patrick [Auteur]
Marin, Adeline [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Tahon, Jean-Francois [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Lefebvre, Jean-Marc [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Gaucher, Valerie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Carbohydrate Polymers

Abbreviated title :

Carbohydrate Polymers

Volume number :

234

Pages :

115912

Publisher :

Elsevier BV

Publication date :

2020-04-15

ISSN :

0144-8617

HAL domain(s) :

Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

A series of fatty acid cellulose esters (FACEs) with both various degrees of substitution (from DS = 1.7 to 3) and side chain length were obtained by grafting aliphatic acid chlorides (from C10 to C16) onto cellulose ...
Show more >A series of fatty acid cellulose esters (FACEs) with both various degrees of substitution (from DS = 1.7 to 3) and side chain length were obtained by grafting aliphatic acid chlorides (from C10 to C16) onto cellulose backbone, in a homogeneous LiCl/DMAc medium. These materials were characterized by Fourier Transformed InfraRed (FTIR) and Nuclear Magnetic Resonance of Proton (1H NMR) spectroscopies, as well as Wide Angle X-ray Scattering (WAXS), Differential Scanning Calorimetry (DSC), mechanical analyses and chemical resistance to concentrated acid and alkali solutions. Whatever the alkyl chains length and the DS, all samples displayed a layered structure composed of a planar arrangement of parallel cellulosic backbones with fully extended flexible side chains oriented perpendicular to the planar structure without interdigitation. The alkyl chains were able to crystallize as soon as they are long enough. As the DS decreased, the plasticizing effect of the alkyl chains was less pronounced and their ability to crystallize was improved. Regarding the mechanical behavior and the chemical resistance, similar results were observed whatever the DS is.Show less >

Language :

Anglais

Audience :

Internationale

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2020-11-05T16:24:30Z
2020-11-07T21:10:23Z
2020-11-16T09:52:14Z