ICCAS OpenIR
New series of blue-emitting and electron-transporting copolymers based on fluorene
Zhan, XW; Liu, YQ; Wu, X; Wang, S; Zhu, DB
2002-03-26
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume35Issue:7Pages:2529-2537
AbstractA novel series of conjugated copolymers having oxadiazole, quinoline, quinoxaline, and pherrylenecyanovinylene moieties in the main chain based on fluorene were synthesized in good yields by palladium-catalyzed Suzuki coupling reaction, a new approach different from the traditional polyhydrazide precursor route (oxadiazole-containing polymers), acid-catalyzed Friedlander condensation reaction (polyquinolines), and Knoevenagel condensation polymerization (poly(phenylenecyanovinylene)), The thermal, electrochemical, and optical properties of these copolymers were examined. All these polymers possess excellent thermal stability with glass transition temperatures of 114-208 degreesC and onset decomposition temperatures of 387-415 degreesC. Cyclic voltammetry studies reveal that these copolymers possess low-lying LUMO energy levels ranging from -3.01 to -3.37 eV and low-lying HOMO energy levels ranging from -6.13 to -6.38 eV and may be promising candidates for electron-transporting or hole-blocking materials in light-emitting diodes. The polymers in thin films emit strong blue luminance around 414-476 nm, with narrow bandwidth upon photoexcitation. Photoluminescence spectra of the polymers in the films are only red-shifted by 7-11 nm compared to those in the solution, indicating that the aggregation and the excimer fluorescence are suppressed.
DOI10.1021/ma011593g
Indexed BySCI
Language英语
WOS IDWOS:000174559600021
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78750
Collection中国科学院化学研究所
Corresponding AuthorLiu, YQ
AffiliationChinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Zhan, XW,Liu, YQ,Wu, X,et al. New series of blue-emitting and electron-transporting copolymers based on fluorene[J]. MACROMOLECULES,2002,35(7):2529-2537.
APA Zhan, XW,Liu, YQ,Wu, X,Wang, S,&Zhu, DB.(2002).New series of blue-emitting and electron-transporting copolymers based on fluorene.MACROMOLECULES,35(7),2529-2537.
MLA Zhan, XW,et al."New series of blue-emitting and electron-transporting copolymers based on fluorene".MACROMOLECULES 35.7(2002):2529-2537.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhan, XW]'s Articles
[Liu, YQ]'s Articles
[Wu, X]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhan, XW]'s Articles
[Liu, YQ]'s Articles
[Wu, X]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhan, XW]'s Articles
[Liu, YQ]'s Articles
[Wu, X]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.