Multicomponent Radziszewski Emulsion Polymerization toward Macroporous Poly(ionic liquid) Catalysts,ACS Macro Letters

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Multicomponent Radziszewski Emulsion Polymerization toward Macroporous Poly(ionic liquid) Catalysts
ACS Macro Letters ( IF 5.1 ) Pub Date : 2020-01-09 , DOI: 10.1021/acsmacrolett.9b00942
Pierre Stiernet ₁ , Abdelhafid Aqil ₁ , Xiaomin Zhu ₂ , Antoine Debuigne ₁

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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.

中文翻译：

多组分 Radziszewski 乳液聚合制备大孔聚（离子液体）催化剂

通过在高内相乳液 (HIPE) 条件下应用于三胺的改性 Radziszewski 多组分反应 (MCR) 生产互连的大孔咪唑基整体材料。这种简单的一锅法合成将 MCR 的效率和多功能性与乳液模板聚合过程的易于实施相结合。所得材料的化学结构和形态的表征证实了预期的大孔聚（离子液体）（PIL）网络的形成。说明了这些多孔 PIL 单块具有良好的催化活性和可回收性，可用于酯交换反应和咖啡酸的脱羧。在这些情况下，几乎可以实现完全转化，同时受益于与多相催化剂相关的优势。

更新日期：2020-01-10

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