State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
Chemistry. 2010 Feb 8;16(6):1812-8. doi: 10.1002/chem.200902495.
Novel guanidinium ionic liquid-grafted rigid poly(p-phenylene) (PPPIL) microspheres have been developed for metal scavenging and catalysis. The noble-metal nanoparticles supported on the microspheres surface can be used as efficient heterogeneous catalysts. The combination of nanoparticles and ionic liquid fragments on the microsphere surfaces enhance the activity and durability of the catalyst. The PPPILPd(0) catalyst has been tested in the Suzuki cross-coupling reaction, and exhibits much higher catalytic activity than Pd catalysts supported on porous polymer matrices. The PPPILPd(0) catalyst can be recycled at least for nine runs without any significant loss of activity. The present approach may, therefore, have potential applications in transition-metal-nanocatalyzed reactions.
新型胍基离子液体接枝刚性聚对亚苯基（PPPIL）微球已被开发用于金属清除和催化。负载在微球表面的贵金属纳米粒子可用作高效的多相催化剂。纳米粒子与微球表面的离子液体片段的结合增强了催化剂的活性和稳定性。PPPILPd(0)催化剂已在铃木交叉偶联反应中进行了测试，其催化活性明显高于负载在多孔聚合物基质上的 Pd 催化剂。该 PPPILPd(0)催化剂至少可以循环使用九次，而活性没有明显损失。因此，该方法可能在过渡金属纳米催化反应中具有潜在的应用。
