Cooperative Synthesis of Raspberry‐Like ...
Type de document :
Article dans une revue scientifique: Article original
DOI :
URL permanente :
Titre :
Cooperative Synthesis of Raspberry‐Like Covalent Organic Framework‐Polymer Particles with a Radial Single‐Crystal Grain Orientation
Auteur(s) :
Salaün, Pauline [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Fadel, Alexandre [Auteur]
Université de Lille, Sciences et Technologies
Pelaez-Fernandez, Mario [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Mouloud, Bahae‐eddine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207
Tahon, Jean‐françois [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Volkringer, Christophe [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Woisel, Patrice [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Le Fer, Gaëlle [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Fadel, Alexandre [Auteur]
Université de Lille, Sciences et Technologies
Pelaez-Fernandez, Mario [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Mouloud, Bahae‐eddine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207
Tahon, Jean‐françois [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Volkringer, Christophe [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Woisel, Patrice [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Unité Matériaux et Transformations - UMR 8207 [UMET]
Le Fer, Gaëlle [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207
Titre de la revue :
Small
Éditeur :
Wiley-VCH Verlag
Date de publication :
2023-08-23
ISSN :
1613-6810
Discipline(s) HAL :
Chimie
Résumé en anglais : [en]
Abstract Despite many efforts devoted toward the design of covalent organic frameworks (COFs) at the framework level by selecting the building blocks, their organization in the nano to meso regimes is often neglected. ...
Lire la suite >Abstract Despite many efforts devoted toward the design of covalent organic frameworks (COFs) at the framework level by selecting the building blocks, their organization in the nano to meso regimes is often neglected. Moreover, the importance of processability for their applications has recently emerged and the synthesis of COF nanostructures without agglomeration is still a challenge. Herein, the first example of hybrid COF‐polymer particles for which polymers are used to manipulate the 2D COF growth along a specific direction is reported. The study examines how the nature, chain‐end functionality, and molar mass of the polymer influence the shaping of hybrid 2D boronate ester‐linked COF‐polymer particles. Catechol‐poly(N‐butyl acrylate) leads to the self‐assembly of crystallites into quasi‐spherical structures while catechol‐poly(N‐isopropylacrylamide) mediates the synthesis of raspberry‐like COF‐polymer particles with radial grain orientation. Scanning and transmission electron microscopies (SEM and TEM) and 4D‐STEM‐ACOM (automated crystal orientation mapping) highlight the single‐crystal character of these domains with one plane family throughout the particles. Interestingly, the presence of PNIPAm on the particle surface allows their drying without co‐crystallization and enables their resuspension. Kinetic investigations show that catechol‐P n BuA acts as a modulator and catechol‐PNIPAm induces a template effect, introducing supramolecular self‐assembly properties into particles to create new morphologies with higher structural complexity, beyond the framework level.Lire moins >
Lire la suite >Abstract Despite many efforts devoted toward the design of covalent organic frameworks (COFs) at the framework level by selecting the building blocks, their organization in the nano to meso regimes is often neglected. Moreover, the importance of processability for their applications has recently emerged and the synthesis of COF nanostructures without agglomeration is still a challenge. Herein, the first example of hybrid COF‐polymer particles for which polymers are used to manipulate the 2D COF growth along a specific direction is reported. The study examines how the nature, chain‐end functionality, and molar mass of the polymer influence the shaping of hybrid 2D boronate ester‐linked COF‐polymer particles. Catechol‐poly(N‐butyl acrylate) leads to the self‐assembly of crystallites into quasi‐spherical structures while catechol‐poly(N‐isopropylacrylamide) mediates the synthesis of raspberry‐like COF‐polymer particles with radial grain orientation. Scanning and transmission electron microscopies (SEM and TEM) and 4D‐STEM‐ACOM (automated crystal orientation mapping) highlight the single‐crystal character of these domains with one plane family throughout the particles. Interestingly, the presence of PNIPAm on the particle surface allows their drying without co‐crystallization and enables their resuspension. Kinetic investigations show that catechol‐P n BuA acts as a modulator and catechol‐PNIPAm induces a template effect, introducing supramolecular self‐assembly properties into particles to create new morphologies with higher structural complexity, beyond the framework level.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
Université de Lille
CNRS
INRAE
ENSCL
CNRS
INRAE
ENSCL
Collections :
Équipe(s) de recherche :
Ingénierie des Systèmes Polymères
Date de dépôt :
2023-09-04T14:15:38Z
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