Soluble, saturated-red-light-emitting poly(p-phenylenevinylene) containing triphenylamine units and cyano groups

被引:20
作者
Li, HC [1 ]
Hu, YF [1 ]
Zhang, YG [1 ]
Ma, DG [1 ]
Wang, LX [1 ]
Jing, XB [1 ]
Wang, FS [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
关键词
conjugated polymers; cyano groups; light-emitting diodes (LED); Knoevenagel condensation; poly(p-phenylenevinylene) (PPV); red-light-emitting polymers; triphenylamine; fluorescence;
D O I
10.1002/pola.20278
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A conjugated poly(p-CN-phenylenevinylene) (PCNPV) containing both electron-donating triphenylamine units and electron-withdrawing cyano groups was prepared via Knoevenagel condensation in a good yield. Gel permeation chromatography suggested that the soluble polymer had a very high weight-average molecular weight of 309,000. A bright and saturated red emission was observed under UV excitation in solution and film. Cyclic voltammetry showed that the polymer presented quasi-reversible oxidation with a relatively low potential because of the triphenylamine unit. A single-layer indium tin oxide/PCNPV/Mg-Ag device emitted a bright red light (633 nm). (C) 2004 Wiley Periodicals, lnc.
引用
收藏
页码:3947 / 3953
页数:7
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