Physico-chemical, thermal, and mechanical approaches for the characterization of solubilized and solid state chitosans.
Narimane Mati-Baouche
(1)
,
Hélène De Baynast
(1)
,
Christophe Vial
(1)
,
Fabrice Audonnet
(1)
,
Shengnan Sun
(1)
,
Emmanuel Petit
(2)
,
Fabienne Pennec
(3)
,
Vanessa Prevot
(4)
,
Philippe Michaud
(1)
Narimane Mati-Baouche
- Fonction : Auteur
- PersonId : 172393
- IdHAL : narimane-mati-baouche
- ORCID : 0000-0001-7643-1251
- IdRef : 18892986X
Hélène De Baynast
- Fonction : Auteur
- PersonId : 16532
- IdHAL : helene-de-baynast
- ORCID : 0000-0001-5404-2909
- IdRef : 188930175
Fabrice Audonnet
- Fonction : Auteur
- PersonId : 16503
- IdHAL : fabriceaudonnet
- ORCID : 0000-0003-3235-6397
- IdRef : 069738769
Emmanuel Petit
- Fonction : Auteur
- PersonId : 1151920
- ORCID : 0000-0003-1533-6909
- IdRef : 157819418
Fabienne Pennec
- Fonction : Auteur
- PersonId : 16442
- IdHAL : fabienne-pennec
- IdRef : 142724130
Vanessa Prevot
- Fonction : Auteur
- PersonId : 737941
- IdHAL : vanessa-prevot
- ORCID : 0000-0001-6250-7550
- IdRef : 169040941
Philippe Michaud
- Fonction : Auteur
- PersonId : 1024654
- IdHAL : philippemichaud
- ORCID : 0000-0002-6677-4549
- IdRef : 15632590X
Résumé
This study was conducted on the both solid and solubilized chitosans to propose an approach for the physico-chemical, thermal and mechanical characterizations of this polysaccharide. The polysaccharide used was a 90% deacetylated chitosan having a molecular weight of 98.4 kDa. The flow property of chitosan solutions was evaluated revealing a shear-thinning behavior. The thermal characterization was carried out by studying heat specific capacity, glass transition temperature, and thermal conductivity on chitosan dried specimens (solid state). Their Tg were measured by DSC and confirmed by DMA at 102 and 122°C depending on concentrations of initial chitosan solutions. The mechanical characterization was conducted by analyzing Young modulus, tensile strength, and elongation at break of chitosan specimens. They exhibited a higher elongation at break and a lower tensile strength when made from high concentrated chitosan solution (9% w/v). Differences in mechanical behavior of specimens were explained by differences of crystallinity.
Format du dépôt | Notice |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Physico-chemical, thermal, and mechanical approaches for the characterization of solubilized and solid state chitosans.
|
Résumé |
en
This study was conducted on the both solid and solubilized chitosans to propose an approach for the physico-chemical, thermal and mechanical characterizations of this polysaccharide. The polysaccharide used was a 90% deacetylated chitosan having a molecular weight of 98.4 kDa. The flow property of chitosan solutions was evaluated revealing a shear-thinning behavior. The thermal characterization was carried out by studying heat specific capacity, glass transition temperature, and thermal conductivity on chitosan dried specimens (solid state). Their Tg were measured by DSC and confirmed by DMA at 102 and 122°C depending on concentrations of initial chitosan solutions. The mechanical characterization was conducted by analyzing Young modulus, tensile strength, and elongation at break of chitosan specimens. They exhibited a higher elongation at break and a lower tensile strength when made from high concentrated chitosan solution (9% w/v). Differences in mechanical behavior of specimens were explained by differences of crystallinity.
|
Auteur(s) |
Narimane Mati-Baouche
1
, Hélène De Baynast
1
, Christophe Vial
1
, Fabrice Audonnet
1
, Shengnan Sun
1
, Emmanuel Petit
2
, Fabienne Pennec
3
, Vanessa Prevot
4
, Philippe Michaud
1
1
IP -
Institut Pascal
( 186882 )
- Campus Universitaire des Cézeaux, 4 avenue Blaise Pascal, TSA 60026 / CS 60026, 63178 Aubière Cedex
- France
2
BIOPI -
Biologie des Plantes et Innovation - UR UPJV 3900
( 509622 )
- Université de Picardie Jules Verne - UFR des Sciences - 33, rue Saint Leu - 80039 AMIENS CEDEX 1
- France
3
GEMH -
Groupe d'Etudes des Matériaux Hétérogènes
( 34827 )
- Centre Universitaire de Génie Civil
Département Génie Civil, Faculté des Sciences et Techniques de Limoges
Boulevard Jacques Derche, 19300 Egletons
- France
4
ICCF -
Institut de Chimie de Clermont-Ferrand
( 179392 )
- 24 Avenue des Landais, 63177 Aubière Cedex
- France
|
Langue du document |
Anglais
|
Nom de la revue |
|
Vulgarisation |
Non
|
Comité de lecture |
Oui
|
Audience |
Internationale
|
Volume |
132
|
Date de publication |
2015
|
Page/Identifiant |
41257
|
Domaine(s) |
|
Mots-clés |
en
adhesives, biodegradable, biopolymers and renewable polymers, mechanical properties, polysaccharides
|
DOI | 10.1002/app.41257 |
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