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Ionic-Liquid-Grafted Rigid Poly(p-Phenylene) Microspheres Efficient Heterogeneous Media for Metal Scavenging and Catalysis  
Ionic-Liquid-Grafted Rigid Poly(p-Phenylene) Microspheres Efficient Heterogeneous Media for Metal Scavenging and Catalysis
資料類型: PDF文件
關(guān)鍵詞: ionic  liquids  metal  scavenging  microspheres  nanoparticles  
資料大小: 461k
所屬學(xué)科: 高分子化學(xué)
來源: 來源網(wǎng)絡(luò)
簡介:
Novel guanidinium ionicliquid-grafted rigid poly(p-phenylene)(PPPIL) microspheres have been developed for metal scavenging and catalysis. The noble-metal nanoparticlessupported on the microspheres surfacecan be used as efficient heterogeneouscatalysts. The combination of nanoparticles and ionic liquid fragments on themicrosphere surfaces enhance the activity and durability of the catalyst. The PPPIL·Pd0catalyst has been testedin the Suzuki cross-coupling reaction,and exhibits much higher catalytic activity than Pd catalysts supported onporous polymer matrices. The PPPIL·Pd0catalyst can be recycled atleast for nine runs without any significant loss of activity. The present approach may, therefore, have potentialapplications in transition-metal-nanocatalyzed reactions.
上傳人: lishenghai
上傳時(shí)間: 2015-09-22 18:58:35
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