Title :

In-situ SAXS/WAXS investigations of ureidopyrimidinone functionalized semi-crystalline poly(ethylene-co-butylene) supramolecular polymers

Author(s) :

Louati, Maroua [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Tahon, Jean-Francois [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Fournier, David [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Stoclet, Gregory [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Aloise, Stéphane [Auteur]
Takao, Marumi [Auteur]
Takeshita, Michinori [Auteur]
Lefebvre, Jean-Marc [Auteur]
Barrau, Sophie [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Polymer

Abbreviated title :

Polymer

Volume number :

228

Pages :

123875

Publisher :

Elsevier BV

Publication date :

2021-07

ISSN :

0032-3861

HAL domain(s) :

Sciences de l'ingénieur [physics]/Mécanique [physics.med-ph]/Matériaux et structures en mécanique [physics.class-ph]
Sciences de l'ingénieur [physics]/Génie des procédés
Chimie/Polymères
Chimie/Matériaux

English abstract : [en]

The structural evolution as a function of temperature of a supramolecular copolymer assembly based on multiple hydrogen bonds has been investigated. Ureidopyrimidinone functionalized semi-crystalline poly(ethylene-co-butylene) ...
Show more >The structural evolution as a function of temperature of a supramolecular copolymer assembly based on multiple hydrogen bonds has been investigated. Ureidopyrimidinone functionalized semi-crystalline poly(ethylene-co-butylene) (PEB-(L-UPy)2) has been characterized by means of in situ WAXS and SAXS experiments. The crystallinity and the nature of crystal forms are associated to the ethylene sequences. Special attention has been paid to the impact of the hydrogen bonding network on the structural arrangements, by comparison to the unfunctionalized PEB. The presence of crystalline domains of in-plane arrangement between neighboring UPy dimers is detected by WAXS up to 80 °C. The SAXS data reflect the presence of L-UPy aggregates stable on the whole temperature range. The correlation of these UPy-based aggregates is effective until the PEB crystal melting temperature (Tm). Beyond Tm, the increase of the macromolecular mobility reduce the number of domains in interaction and, in consequence, implies a decorrelation of the aggregates.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

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 :

2021-05-30T16:03:16Z
2021-05-30T16:09:18Z
2021-06-10T10:37:53Z