Novel Blue Light Emitting Poly(N-arylcarbazol-2,7-ylene) Homopolymers: Syntheses and Properties
Novel Blue Light Emitting Poly(N-arylcarbazol-2,7-ylene) Homopolymers: Syntheses and Properties
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DOI：
10.1021/ma061764n
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发表时间：
2006-12
期刊：
影响因子：
5.5
通讯作者：
Norifumi Kobayashi;Ryohei Koguchi;M. Kijima
中科院分区：
文献类型：
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作者：
Norifumi Kobayashi;Ryohei Koguchi;M. Kijima
本文采用Ni(0)催化的山本聚合反应，高产率地合成了一种新型的N-苯基-2，7-咔唑聚(N-苯基-2，7-咔唑)-S。为了优化分子间和分子内的相互作用，合成了一系列结构异构体。引入了富含电子的三环氧乙烷基团或三苯氨基来调节HOMO能级。用核磁共振氢谱、核磁共振碳谱、红外光谱、元素分析、凝胶渗透色谱、热重分析、UV-−-Vis、荧光光谱和电化学分析对聚合物进行了表征。所有聚合物都具有足够高的相对分子质量，在普通有机溶剂中表现出良好的溶解性，并具有良好的薄膜加工性。聚合物末端残留碘的脱碘提高了在CHCl_3(φf(Sol)=0.8)中的荧光量子产率。所有聚合物均以薄膜形式出现荧光图谱，发射带位于430、455和...
In this paper, we synthesized a new type of poly(N-phenyl-2,7-carbazole)s with alkoxy groups or a diphenylamino group at o-, m-, or p- position of the N-phenyl group using the Ni(0)-catalyzed Yamamoto polymerization in high yields. The series of structural isomers were synthesized in order to optimize the inter- and intramolecular interactions. The electron-rich triethylene oxide groups or the triphenylamino groups were introduced to tune the HOMO energy levels. These polymers were characterized by 1H NMR, 13C NMR, IR, elemental analysis, GPC, TGA, UV−vis, fluorescence spectroscopy, and electrochemical analysis. All the polymers had enough high molecular weights to show a good solubility in common organic solvents and a good processability for making thin films. Deiodination of the terminal residual iodide of the polymers enhanced the fluorescent quantum yields in CHCl3 (φf (sol) = 0.8). In the form of thin films, all the polymers displayed the fluorescence charts with emission bands around 430, 455, and ...