[1] Wang Hualin, Sun Yueming, Qi Zhengjian, Jiang Wei, et al. Synthesis and optical properties of an alternating copolymercomposed of MEHPV and 1, 3, 4-oxadiazole [J]. Journal of Southeast University (English Edition), 2008, 24 (2): 238-242. [doi:10.3969/j.issn.1003-7985.2008.02.023]

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Synthesis and optical properties of an alternating copolymercomposed of MEHPV and 1, 3, 4-oxadiazole()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

24

Issue:

2008 2

Page:

238-242

Research Field:

Mathematics, Physics, Mechanics

Publishing date:

2008-06-03

Info

Title:

Synthesis and optical properties of an alternating copolymercomposed of MEHPV and 1, 3, 4-oxadiazole

Author(s):

Wang Hualin;  Sun Yueming;  Qi Zhengjian;  Jiang Wei;  Song Kunzhong;  Li Dayan

School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China

Keywords:

MEH-PPV;  1;  3;  4-oxadiazoles units;  electron injection;  photoluminescence;  polymer light-emitting diode

PACS:

O361;TN383.1

DOI:

10.3969/j.issn.1003-7985.2008.02.023

Abstract:

A poly(p-phenylenevinylene)(PPV)alternating copolymer, poly[(2, 5-diphenylene-1, 3, 4-oxadiazole)-4-4’-vinylene-alt-2-methoxy-5-(2-ethylhexyloxy)-1, 4-phenylen-evinylene](oxa-MEHPV), is synthesized by Heck coupling reaction and characterized with UV-vis, Fourier transform infrared(FT-IR), ¹H-NMR and photoluminescence(PL)spectroscopy.oxa-MEHPV possesses an outstanding thermal stability and shows excellent solubility in common organic solvents such as dichloromethane, chloroform, toluene, and tetrahydrofuran(THF).The introduction of the electron-deficient 1, 3, 4-oxadiazole units into the MEH-PPV backbone also increases the electron affinities of the conjugated segment, which leads to the blue-shift of the maximum absorption wavelength and makes the polymer have a high optical band-gap energy, good electron-transporting stability and high PL quantum yield.

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Memo

Memo:

Biographies: Wang Hualin(1975—), male, graduate;Sun Yueming(corresponding author), male, doctor, professor, sun@seu.edu.cn.
Foundation items: The National Basic Research Program of China(973 Program)(No.2007CB936300), the High Technology Research and Development Program of Jiangsu Province(No.BG2006033).
Citation: Wang Hualin, Sun Yueming, Qi Zhengjian, et al.Synthesis and optical properties of an alternating copolymer composed of MEHPV and 1, 3, 4-oxadiazole[J].Journal of Southeast University(English Edition), 2008, 24(2):238-242.

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