| 초록 |
Covalent organic polymers (COPs) are an important class of nanoporous materials that are attracting increased attention owing to their potential applications in gas adsorption/separation and catalysis. These materials possess many advantages compared with conventional zeolites and metal organic frameworks, such as easy synthesis, high surface area, low density, and high chemical stability in both aqueous and organic environments. In addition, incorporation of nitrogen functionality on the surface of the polymer matrices can improve the support capacity for holding metal NPs. In this work, we have synthesized a novel COP material, carbonyl-based aromatic polymer (CBAP-1) via a Friedel-Crafts reaction of 1,3,5-triphenylbenzene and terephthaloyl chloride in the presence of anhydrous AlCl3, and post-synthetically functionalized with ethylenediamine (EDA) to obtain CBAP-1(EDA). It was used as a solid support to immobilize Pd NPs and exhibiting excellent catalytic activity in the C-C self-coupling of aryl chlorides. The catalyst was reused without significant loss of activity up to six runs and the hot-filtration test confirmed the heterogeneous nature of the reaction. |
