ICCAS OpenIR
Fluorescence spectra of the poly (N-vinylcarbazole) obtained with asymmetric polymerization
Chen, CF; Su, Q; Chen, YM; Xi, F
1999
Source PublicationCHINESE CHEMICAL LETTERS
ISSN1001-8417
Volume10Issue:1Pages:59-62
AbstractThe fluorescence spectra of the poly (N-vinylcarbazole) in solution obtained with chirally organic salts or acid as catalyst or initiator [ (-)Sp: (-)-Sparteine, (+)CSA: D- (+)Camphor-10-sulfonic acid)], respectively, have been investigated. It is found that the two emission peaks at the longer wavelength (lambda max, ca, 415nm) and the shorter wavelength (lambda max, ca, 370nm) are assigned to the sandwich excimer and second excimer (partial overlap) fluorescence, respectively. The sandwich excimer and partially overlapped excimer are attributed to a fully overlapped structure of neighbouring carbazole chromophores in a totally elipsed conformation of the isotactic sequence, and partially overlapped structure of the syndiotactic sequence. The estimated values of I-415/I-370 and isotactic sequence content by using the fluorescence spectra are in the order: (-)Sp(+) (+)CSA(-)> (+)CSA(-)> (-)Sp(+)ClO(4)(-) (no peak at 415nm for AIBN).
KeywordFluorescence Spectra Poly (N-vinylcarbazole) Asymmetric Polymerization
Indexed BySCI
Language英语
WOS IDWOS:000081029400023
PublisherCHINESE CHEMICAL SOCIETY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/75286
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, PCLCC, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Chen, CF,Su, Q,Chen, YM,et al. Fluorescence spectra of the poly (N-vinylcarbazole) obtained with asymmetric polymerization[J]. CHINESE CHEMICAL LETTERS,1999,10(1):59-62.
APA Chen, CF,Su, Q,Chen, YM,&Xi, F.(1999).Fluorescence spectra of the poly (N-vinylcarbazole) obtained with asymmetric polymerization.CHINESE CHEMICAL LETTERS,10(1),59-62.
MLA Chen, CF,et al."Fluorescence spectra of the poly (N-vinylcarbazole) obtained with asymmetric polymerization".CHINESE CHEMICAL LETTERS 10.1(1999):59-62.
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