Synthesis and fluorescent properties of model compounds for conjugated polymer containing maleimide units at the main chain
作者:Kenjiro Onimura、Mieko Matsushima、Munetoshi Nakamura、Tatsuya Tominaga、Kazuhiro Yamabuki、Tsutomu Oishi
DOI:10.1002/pola.24792
日期:2011.8.15
2,3‐Diaryl substituted maleimides as model compounds of conjugated maleimide polymers [poly(RMI‐alt‐Ar) and poly(RMI‐co‐Ar)] were synthesized from 2,3‐dibromo‐N‐substituted maleimide (DBrRMI) [R= cyclohexyl (DBrCHMI) and n‐hexyl (DBrHMI)] and aryl boronic acid using palladium catalysts. To clarify structures of conjugated polymer containing maleimide units at the main chain, 13C NMR spectra of 2‐aryl
2,3-二芳基取代的马来酰亚胺缀合马来酰亚胺的聚合物的模型化合物[聚(RMI- ALT -Ar)和聚(RMI-共-Ar)由2,3-二溴合成ñ -取代的马来酰亚胺(DBrRMI) R =使用钯催化剂的环己基(DBrCHMI)和正己基(DBrHMI)]和芳基硼酸。为了阐明主链上含有马来酰亚胺单元的共轭聚合物的结构,将2-芳基或2,3-二芳基取代的马来酰亚胺的13 C NMR光谱与N进行了比较。预取代的马来酰亚胺聚合物。用DBrRMI通过Suzuki-Miyaura交叉偶联聚合或Yamamoto偶联聚合获得的共聚物在末端为脱卤结构。这种脱卤作用可能会导致DBrRMI的低聚合性。另一方面,π共轭化合物在普通有机溶剂中显示出高溶解度。马来酰亚胺的N-取代基不能显着影响2,3-二芳基取代的马来酰亚胺衍生物的光致发光光谱。聚(RMI- alt- Ar)和聚(RMI- co- Ar)的荧光光谱随N的变化而