Synthesis and Characterization of a New Triphenylamine-Substituted PFO/PPV Copolymer

被引:2
|
作者
Gu, Lingling [1 ]
Bai, Jinrui [1 ]
Chen, Yu [1 ]
Lin, Ying [1 ]
机构
[1] E China Univ Sci & Technol, Dept Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China
基金
中国国家自然科学基金;
关键词
Polyfluorene; Triphenylamine Functionality; Heck-Coupling Reaction; ELECTRON-TRANSFER PROCESS; LIGHT-EMITTING-DIODES; SIDE-CHAIN; POLY(P-PHENYLENEVINYLENE) DERIVATIVES; ELECTROLUMINESCENT PROPERTIES; PHOTOVOLTAIC APPLICATIONS; VINYLENE BRIDGE; HECK REACTION; POLYMER; POLYFLUORENE;
D O I
10.1295/polymj.PJ2009100
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The spiro-type bulky architecture in the polymer is intriguing since it can suppress the interchain interactions and enhance the photoluminescence efficiency. A new triphenylamine-substituted PFO/PPV alternating copolymer was synthesized by using a typical Heck-coupling reaction. This highly soluble polymer exhibits strong photoluminescence with maximum emission peaks centered at 417 and 441 nm in THF; 425 and 460 nm in benzonitrile. In deoxygenated dry benzonitrile, the fluorescence tune profile of copolymer exhibited a bi-exponential decay with lifetime of 0.12 ns (98%) and 1.13 ns (2%). Upon excitation with nanosecond laser pulse at 355 nm, the transient absorption band at 610 nm was observed.
引用
收藏
页码:866 / 871
页数:6
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