Title :

Influence of the molecular weight on mechanical behavior and associated strain-induced structural evolution of Poly(ethylene 2,5-furandicarboxylate) upon biaxial stretching

Author(s) :

Stoclet, Gregory [Auteur]
Université de Lille, Sciences et Technologies
Unité Matériaux et Transformations - UMR 8207 [UMET]
Xu, Shanshan [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Gaucher, Valerie [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Tahon, Jean-Francois [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
van Berkel, S. [Auteur]
Arias, A. [Auteur]
Rogeret, C. [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Nourichard, R. [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
de Vos, S. [Auteur]
Nourichard, R. [Auteur]

Journal title :

Polymer

Abbreviated title :

Polymer

Volume number :

217

Pages :

123441

Publisher :

Elsevier BV

Publication date :

2021-03

ISSN :

0032-3861

English keyword(s) :

Biaxial stretching
Poly(ethylene 2
5-furandicarboxylate)
Macromolecular orientation
Crystallization
Barrier properties

HAL domain(s) :

Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

The mechanical behavior of Poly(ethylene 2,5-furandicarboxylate) upon biaxial stretching and the associated strain-induced structural evolution is studied in the light of its molecular weight. Besides it is shown that the ...
Show more >The mechanical behavior of Poly(ethylene 2,5-furandicarboxylate) upon biaxial stretching and the associated strain-induced structural evolution is studied in the light of its molecular weight. Besides it is shown that the increase of molecular weight favors strain-induced crystallization (SIC) and that SIC in PEF occurs when a critical molecular orientation ratio is achieved. The earlier occurrence of SIC in the case of the higher macromolecular weight is explained by the faster macromolecular orientation due to a more robust entanglement network. Regarding the mechanical behavior, it appears that a strain-hardening stage is observed whatever the molecular weight, this stage originates from both macromolecular orientation and formation of crystals upon stretching. Finally, it is shown that biaxial orientation (BO) has a positive effect on both oxygen barrier properties and mechanical properties. Particularly it was highlighted that, while as-cast PEF is brittle, BO PEF films are ductile when a critical biaxial draw ratio is achieved.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2023-12-11T15:32:16Z
2023-12-15T09:09:35Z