Plasticization of a Semicrystalline Metallosupramolecular Polymer Network

Marx, Franziska; Pal, Subhajit; Sautaux, Julien; Pallab, Nazim; Stoclet, Gregory; Weder, Christoph; Schrettl, Stephen

Type de document :

Article dans une revue scientifique

DOI :

10.1021/acspolymersau.2c00044

URL permanente :

http://hdl.handle.net/20.500.12210/100154

Titre :

Plasticization of a Semicrystalline Metallosupramolecular Polymer Network

Auteur(s) :

Marx, Franziska [Auteur]
Université de Fribourg = University of Fribourg [UNIFR]
Pal, Subhajit [Auteur]
Université de Fribourg = University of Fribourg [UNIFR]
Sautaux, Julien [Auteur]
Université de Fribourg = University of Fribourg [UNIFR]
Pallab, Nazim [Auteur]
Université de Fribourg = University of Fribourg [UNIFR]
Stoclet, Gregory [Auteur]

Unité Matériaux et Transformations (UMET) - UMR 8207
Weder, Christoph [Auteur]
Université de Fribourg = University of Fribourg [UNIFR]
Schrettl, Stephen [Auteur]
Université de Fribourg = University of Fribourg [UNIFR]

Titre de la revue :

ACS Polymers Au

Nom court de la revue :

ACS Polym. Au

Numéro :

Pagination :

132-140

Éditeur :

American Chemical Society (ACS)

Date de publication :

2022-11-10

Discipline(s) HAL :

Chimie/Matériaux

Résumé en anglais : [en]

The assembly of ligand-functionalized (macro)monomers with suitable metal ions affords metallosupramolecular polymers (MSPs). On account of the reversible and dynamic nature of the metal–ligand complexes, these materials ...
Lire la suite >The assembly of ligand-functionalized (macro)monomers with suitable metal ions affords metallosupramolecular polymers (MSPs). On account of the reversible and dynamic nature of the metal–ligand complexes, these materials can be temporarily (dis-)assembled upon exposure to a suitable stimulus, and this effect can be exploited to heal damaged samples, to facilitate processing and recycling, or to enable reversible adhesion. We here report on the plasticization of a semicrystalline, stimuli-responsive MSP network that was assembled by combining a low-molecular-weight building block carrying three 2,6-bis(1′-methylbenzimidazolyl) pyridine (Mebip) ligands and zinc bis(trifluoromethylsulfonyl)imide (Zn(NTf2)2). The pristine material exhibits high melting (Tm = 230 °C) and glass transition (Tg ≈ 157 °C) temperatures and offers robust mechanical properties between these temperatures. We show that this regime can be substantially extended through plasticization. To achieve this, the MSP network was blended with diisodecyl phthalate. The weight fraction of this plasticizer was systematically varied, and the thermal and mechanical properties of the resulting materials were investigated. We show that the Tg can be lowered by more than 60 °C and the toughness above the Tg is considerably increased.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Ingénierie des Systèmes Polymères

Date de dépôt :

2024-01-10T15:02:38Z
2024-01-24T12:36:29Z

Fichiers

Marx et al. - 2022 - Plasticization of a Semicrystalline Metallosupramo.pdf
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Ce document est diffusé sous licence Attribution 3.0 United States

Numéro de version	Lien	Date de modification
2	20.500.12210/100154*	2024-01-24T12:33:37Z
1	20.500.12210/100154.1	2024-01-10T15:02:38Z

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