Synthesis of a conjugated polymer with ring-fused pyridinium units via a postpolymerization intramolecular cyclization reaction
Synthesis of a conjugated polymer with ring-fused pyridinium units via a postpolymerization intramolecular cyclization reaction
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DOI：
10.1038/s41428-020-0388-8
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发表时间：
2020-07-22
期刊：
影响因子：
2.8
通讯作者：
Inagi, Shinsuke
中科院分区：
文献类型：
--
作者：
Shida, Naoki;Nishimi, Honoka;Inagi, Shinsuke
报道了一种主链含稠合吡啶鎓单元的新型共轭聚合物的合成。在刘易斯酸添加剂的存在下，具有吡啶和四氟亚苯基结构的前体聚合物反应，以促进分子内亲核芳香取代（SNAr）反应。与BE 3-OEt（2）的聚合反应得到可溶于极性有机溶剂的产物聚合物，并且光谱证实了稠合吡啶环结构的成功形成。电化学和光学性能的合成聚合物进行了研究，表明聚合物产品具有较窄的带隙比前体聚合物。
The synthesis of a novel conjugated polymer containing fused pyridinium units in its main chain is reported. A precursor polymer possessing pyridine and tetrafluorophenylene moieties was reacted in the presence of Lewis acid additives to promote the intramolecular nucleophilic aromatic substitution (SNAr) reaction. The polymer reaction with BE3-OEt(2)gave a product polymer soluble in polar organic solvents, and the successful formation of fused pyridinium ring structures was spectroscopically confirmed. The electrochemical and optical properties of the synthesized polymers were also investigated, suggesting that the polymer product has a narrower band gap than the precursor polymer.