Multicomponent Radziszewski Emulsion Polymerization toward Macroporous Poly(ionic liquid) Catalysts

ACS Macro Letters, vol. 9, pp. 134–139

Abstract

Interconnected macroporous imidazolium-based monoliths are produced via the modified Radziszewski multicomponent reaction (MCR) applied to triamines under high internal phase emulsion (HIPE) conditions. This straightforward one-pot synthesis combines the efficiency and versatility of MCRs with the ease of implementation of the emulsion templating polymerization process. The characterization of the chemical structure and morphology of the resulting materials confirms the formation of the expected macroporous poly(ionic liquid)s (PILs) networks. The promising catalytic activity and recyclability of these porous PIL monoliths are illustrated for the transesterification reaction and the decarboxylation of caffeic acid. In these cases, almost complete conversion is reached while benefiting from the advantages associated with a heterogeneous catalyst.

Authors 4

1. Pierre Stiernet

   University of Liège

   Affiliation as printed

   Center for Education and Research on Macromolecules (CERM), Research Unit “Complex and Entangled Systems: from Atoms to Materials” (CESAM), University of Liege (ULiege), Quartier Agora, 13 Allée du Six Août, Sart-Tilman, B-4000 Liège, Belgium

2. Abdelhafid Aqil

   University of Liège

   Affiliation as printed

   Center for Education and Research on Macromolecules (CERM), Research Unit “Complex and Entangled Systems: from Atoms to Materials” (CESAM), University of Liege (ULiege), Quartier Agora, 13 Allée du Six Août, Sart-Tilman, B-4000 Liège, Belgium

3. Xiaomin Zhu Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University, Forckenbeckstraße 50, 52056 Aachen, Germany

4. Antoine Debuigne corresponding

   University of Liège

   Affiliation as printed

   Center for Education and Research on Macromolecules (CERM), Research Unit “Complex and Entangled Systems: from Atoms to Materials” (CESAM), University of Liege (ULiege), Quartier Agora, 13 Allée du Six Août, Sart-Tilman, B-4000 Liège, Belgium