Linear π-conjugated polymers containing 2,4,6-tris(thiophen-2-yl)-1,3,5-triazine unit:: Synthesis and optical properties

被引：24
|
作者：
Zou, Li [1 ]
Fu, Yang [1 ]
Yan, Xiaobing [1 ]
Chen, Xingguo [1 ]
Qin, Jingui [1 ]
机构：
[1] Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Opto Elect Mat, Wuhan 430072, Peoples R China
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2008年 / 46卷 / 02期
关键词：
conjugated polymers; electrochemistry; fluorescence;
D O I：
10.1002/pola.22418
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Some linear pi-conjugated polymers containing 2,4,6-tris(thiophen-2-yl)1,3,5-triazine unit were synthesized via Sonogashira or Suzuki reaction for the first time and characterized by IR, NMR, and GPC. Because of the introduction of 2,4,6-tris(thiophen-2-yl)-1,3,5-triazine unit into pi-conjugated system, all polymers exhibited good thermal stability with high decomposition temperature. Their optical and electrochemical properties were investigated. Based on the 2,4,6-tris(thiophen-2-yl)-1,3,5-triazine unit linked with different aromatic rings, the polymers showed the tunable fluorescence from blue to blue-green emission with satisfied quantum yield. Cyclic voltammetry measurement indicated that the LUMO and HOMO levels of the polymers could be adjustable through the main-chain structural modification. All polymers had low LUMO level (-2.86 to -3.06 eV) due to the high-electron affinity of triazine unit. (c) 2007 Wiley Periodicals, Inc.
引用
收藏
页码：702 / 712
页数：11
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