Synthesis of New Ionic Liquid-Grafted Metal-Oxo Nanoclusters – Design of Nanostructured Hybrid Organic-Inorganic Polymer Networks - IMT Mines Alès Accéder directement au contenu
Article Dans Une Revue Polymer Année : 2021

Synthesis of New Ionic Liquid-Grafted Metal-Oxo Nanoclusters – Design of Nanostructured Hybrid Organic-Inorganic Polymer Networks

Résumé

Designing innovative multi-functional thermoset polymers represents a major challenge in materials science. In this work, two novel polyhedral imidazolium ionic liquid supported on oligomeric silsesquioxane nanocages having chloride (Cl-) and bistrifluoromethanesulfonimidate (NTf2-) counter anions have been synthesized. These ionic nano-objects were used to nanostructure a model epoxy network. Hence, networks displaying a homogeneous nanoscale morphology were obtained by introducing 5wt % of such organic-inorganic (O/I) silicon-oxo clusters functionalized with ionic liquids. The obtained ionic hybrid O/I epoxy-amine networks display an excellent thermal stability (> 400 °C) compared to their neat counterparts, as well as a pronounced hydrophobic character (23 mJ m-2) and good mechanical performances. Moreover, these O/I nanostructured networks demonstrate an improved fire resistance according to pyrolysis-combustion flow calorimetry (PCFC) and cone calorimetry analyses. In fact, the use of low amounts of imidazolium ionic liquid-modified polyhedral oligomeric silsesquioxanes induce a significant decrease of heat release rate (about 55 %), as well as a retardation of the ignition time (close to 29 %) compared to the neat epoxy-amine network.
Fichier principal
Vignette du fichier
synthesis-of-new-ionic-liquid-grafted-metal-oxo-nanoclusters.pdf (4.64 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03191501 , version 2 (03-06-2021)
hal-03191501 , version 1 (14-11-2022)

Identifiants

Citer

Houssém Chabane, Sébastien Livi, Xavier Morelle, Rodolphe Sonnier, Loïc Dumazert, et al.. Synthesis of New Ionic Liquid-Grafted Metal-Oxo Nanoclusters – Design of Nanostructured Hybrid Organic-Inorganic Polymer Networks. Polymer, 2021, 224, pp.123721. ⟨10.1016/j.polymer.2021.123721⟩. ⟨hal-03191501v2⟩
106 Consultations
226 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More