Liu Xiaofeng, Zhu Mei, Chen Songhua, Yuan Mingjian, Guo Yanbing, Song Yinglin, Liu Huibiao, Li Yuliang
Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China.
Langmuir. 2008 Oct 21;24(20):11967-74. doi: 10.1021/la8020639. Epub 2008 Aug 30.
Nanocomposites of poly- p-phenyleneethynylene gold nanoparticles (PPE-Au) were synthesized via directly grafting maleimide functionalized gold nanoparticles (MA-Au) onto PPE chains by a mild Diels-Alder reaction. The Diels-Alder reaction between copolymers and MA-Au leads to self-assembly of the MA-Au as well as enhances electronic communication between the copolymers and inorganic particles. The as-prepared hybrid nanoassemblies show homogeneous status and well-defined interfaces, which facilitate the electronic interaction between conjugated polymers and gold nanoparticles. Moreover, dramatic photophysical properties and an influence on the assembly behavior of gold nanoparticles are also exhibited, which allows this procedure to be performed as a smart assay for monitoring the process of the Diels-Alder reaction.
通过温和的狄尔斯-阿尔德反应将马来酰亚胺功能化的金纳米颗粒（MA-Au）直接接枝到聚对苯撑乙炔链（PPE）上，合成了聚对苯撑乙炔金纳米颗粒（PPE-Au）纳米复合材料。共聚物与MA-Au之间的狄尔斯-阿尔德反应导致MA-Au的自组装，并增强了共聚物与无机颗粒之间的电子通信。所制备的杂化纳米组装体呈现出均匀的状态和清晰的界面，这有利于共轭聚合物与金纳米颗粒之间的电子相互作用。此外，还表现出显著的光物理性质以及对金纳米颗粒组装行为的影响，这使得该过程能够作为一种智能分析方法用于监测狄尔斯-阿尔德反应的过程。
