| 초록 |
Polymeric ionic liquids (PILs) have attracted increasing interest over the past few years since they combine some of the unique properties of ionic liquids with the improved mechanical stability and macromolecular architecture of polymers. The hypercross-linked polymeric ionic liquid membrane used herein is particularly simple to prepare, since a commercially available polymer is used as a starting material. The structure of the material comprises a micropores, mesopores and macropores. In this work, we synthesized hypercross-linked porous PILs networks via in-situ cross-linking by Friedel-Crafts alkylation method. In the cross-linking process, formaldehyde dimethylacetal is used as a cross-linker and FeCl3 as a catalyst. The as-prepared hypercross-linked porous PILs networks with high porosity and specific surface area possessed excellent activities in catalyzing the reduction of 4-nitrophenol by sodium borohydride in the aqueous phase at ambient temperature. |
