Synthesis and characterization of red-emission PPV copolymers containing fluorenone unit  

作　　者：邹应萍 潘春跃 张振华 刘波 贺跃辉 周科朝 周祎 李永舫 

机构地区：[1]School of Chemistry and Chemical Engineering,Central South University [2]State Key Laboratory of Powder Metallurgy,Central South University [3]Key Laboratory of Organic Solids,Institute of Chemistry,Chinese Academy of Sciences

出　　处：《Journal of Central South University》2010年第2期269-276,共8页中南大学学报（英文版）

基　　金：Projects(50803074, 50633050) supported by the National Natural Science Foundation of China;Project supported by the Opening Fund of State Key Laboratory of Powder Metallurgy;Start-up Fund of Central South University, China

摘　　要：Two soluble copolymers of fluorenone and dioctoxylbenzene （PFN） or anthracene （PFNAn） were synthesized through Heck polymerization, and were characterized by gel permeation chromatography （GPC）, FT-IR, IH-NMR, elemental analysis and thermogravimetric analysis. The polymers possess good solubility in common organic solvents and high thermal stability with the Onset decomposition temperature at higher than 410 ℃. The photophysical properties of the polymers were investigated in both solutions and spin-coated films. Cyclic voltammetry results revealed that the copolymers possess higher electron affinity and reversible reduction/re-oxidation processes. Their electroluminescent properties were further investigated. PFN and PFNAn show stable and saturated red light emission with high thermal stability and high electron injection ability. This type of conjugated polymers may be promising for the applications as electron acceptors in polymer photovoltaic cells and electron transporting materials.Two soluble copolymers of fluorenone and dioctoxylbenzene(PFN) or anthracene(PFNAn) were synthesized through Heck polymerization,and were characterized by gel permeation chromatography(GPC),FT-IR,1H-NMR,elemental analysis and thermogravimetric analysis.The polymers possess good solubility in common organic solvents and high thermal stability with the onset decomposition temperature at higher than 410 ℃.The photophysical properties of the polymers were investigated in both solutions and spin-coated films.Cyclic voltammetry results revealed that the copolymers possess higher electron affinity and reversible reduction/re-oxidation processes.Their electroluminescent properties were further investigated.PFN and PFNAn show stable and saturated red light emission with high thermal stability and high electron injection ability.This type of conjugated polymers may be promising for the applications as electron acceptors in polymer photovoltaic cells and electron transporting materials.

关 键 词：conjugated polymers FLUORENONE photophysical properties red-emission polymers electron affinity 

分 类 号：O631.3[理学—高分子化学]