Functional mesoporous poly(ionic liquid)-based copolymer monoliths: From synthesis to catalysis and microporous carbon production
VIGNOLLE, Joan
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
TATON, Daniel
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
< Reduce
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Language
en
Article de revue
This item was published in
Polymer. 2014, vol. 55, n° 16, p. 3423-3430 SI
Elsevier
English Abstract
Ionic liquid-functionalized mesoporous polymeric networks with specific surface area up to 935 m(2)/g have been successfully synthesized one pot by solvothermal copolymerization of divinylbenzene and monomeric ionic liquids. ...Read more >
Ionic liquid-functionalized mesoporous polymeric networks with specific surface area up to 935 m(2)/g have been successfully synthesized one pot by solvothermal copolymerization of divinylbenzene and monomeric ionic liquids. The as-obtained polymers exhibit a monolithic structure featuring large pore volumes, an abundant mesoporosity and an adjustable content of ionic liquids. The effect of the reaction conditions on the pore structure has been studied in detail. These poly(ionic liquid)-based porous networks (PILPNs) have then been employed as precursors in two distinct applications, namely organo-catalysis and production of microporous carbon monoliths. Selected organocatalyzed reactions, including carbonatation of propylene oxide by cycloaddition with carbon dioxide, benzoin condensation, and cyanosilylation of benzaldehyde have been readily triggered by PILPNs acting as crosslinked polymer-supported (pre)catalysts. The two latter reactions required the prior deprotonation of the imidazolium salt units with a strong base to successfully generate polymer-supported N-heterocyclic carbenes, referred to as poly(NHC)s. Facile recycling and reuse of polymer-supported (pre)catalysts was achieved by simple filtration owing to the heterogeneous reaction conditions. Furthermore, PILPNs could be easily converted into microporous carbon monoliths via CO2 activation. (C) 2014 Elsevier Ltd. All rights reserved.Read less <
English Keywords
CO2
FACILE PREPARATION
POROUS POLYMERS
DIOXIDE
Poly(ionic liquid)
Mesoporous polymer
N-Heterocyclic carbene
N-HETEROCYCLIC CARBENES
POLYMERIC IONIC LIQUIDS
SOLID BASE CATALYSTS
HYDROGEN CARBONATES
EFFICIENT SYNTHESIS
TRANSESTERIFICATION
Origin
Hal imported