ICCAS OpenIR
Synthesis and Characterization of 9,9 '-Diarylfluorene Hyperbranched Polymers
Jin Jia1; Wu Yong-Gang1; Ba Xin-Wu1; Bo Zhi-Shan2
2010-05-10
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume31Issue:5Pages:1023-1028
AbstractStarting from 2, 7-dibromofluorene, two aryl substituents were introduced to the 9-position of fluorene to replace the commonly used alkyl groups so as to increase the stability of fluorene. New hyperbranched polymers that exhibited excellent thermal and luminescent stability were synthesized using newly designed monomers through the "AB(2) + AB" approach. The decomposition temperatures of all hyperbranched polymers are above 400 degrees C. The polymer films heated at 200 degrees C in air for 2 h were not observed green emission band. Compared with alkyl substituted polyfluorenes, the luminescence stability has a marked improvement. DSC results show that linear polymers have a glass transition at 170 degrees C, but hyperbranched polymers do not have an obvious phase transition under 300 degrees C, indicating hyperbranched polyfluorenes form amorphous films, which help to improve the efficiency of PLEDs.
KeywordPolyfluorene Hyperbranched Polymer Green Emission Band
Indexed BySCI
Language英语
WOS IDWOS:000278159700032
PublisherHIGHER EDUCATION PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69872
Collection中国科学院化学研究所
Corresponding AuthorWu Yong-Gang
Affiliation1.Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China
2.Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Jin Jia,Wu Yong-Gang,Ba Xin-Wu,et al. Synthesis and Characterization of 9,9 '-Diarylfluorene Hyperbranched Polymers[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2010,31(5):1023-1028.
APA Jin Jia,Wu Yong-Gang,Ba Xin-Wu,&Bo Zhi-Shan.(2010).Synthesis and Characterization of 9,9 '-Diarylfluorene Hyperbranched Polymers.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,31(5),1023-1028.
MLA Jin Jia,et al."Synthesis and Characterization of 9,9 '-Diarylfluorene Hyperbranched Polymers".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 31.5(2010):1023-1028.
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