Please use this identifier to cite or link to this item: https://doi.org/10.1002/pola.20294
Title: Poly[2,7-(9,9-dihexylfluorene)-alt-pyridine] with donor-acceptor architectures: A new series of blue-light-emitting alternating copolymers
Authors: Liu, S.-P. 
Chan, H.S.O. 
Siu-Choon, N.G. 
Keywords: Blue-emitting alternating polymers
Conjugated polyfluorene derivatives
Palladium (0)-catalyzed Suzuki cross-coupling reaction
Issue Date: 1-Oct-2004
Source: Liu, S.-P., Chan, H.S.O., Siu-Choon, N.G. (2004-10-01). Poly[2,7-(9,9-dihexylfluorene)-alt-pyridine] with donor-acceptor architectures: A new series of blue-light-emitting alternating copolymers. Journal of Polymer Science, Part A: Polymer Chemistry 42 (19) : 4792-4801. ScholarBank@NUS Repository. https://doi.org/10.1002/pola.20294
Abstract: A novel series of well-defined alternating poly[2,7-(9,9-dihexylfluorenyl)-alt-pyridinyl] (PDHFP) with donor-acceptor repeat units were synthesized using palladium (0)-catalyzed Suzuki cross-coupling reactions in good to high yields. In this series of alternating polymers, 2,7-(9,9-dihexylfluorenyl) was used as the light emitting unit, and the electron deficient pyridinyl unit was employed to provide improved electron transportation. These polymers were characterized by 1H-NMR and 13C-NMR, gel permeation chromatography (GPC), thermal analyses, and UV-vis and fluorescence spectroscopy. The glass transition temperature of copolymers in nitrogen ranged from 110 to 148°C, and the copolymers showed high thermal stabilities with high decomposition temperatures in the range of 350 to 390°C in air. The difference in linkage position of pyridinyl unit in the polymer backbone has significant effects on the electronic and optical properties of polymers in solution and in film phases. Meta-linkage (3,5- and 2,6-linkage) of pyridinyl units in the polymer backbone is more favorable to polymer for pure blue emission and prevention of aggregation of polymer chain than para-linkage (2,5-linkage) of the pyridinyl units. © 2004 Wiley Periodicals, Inc.
Source Title: Journal of Polymer Science, Part A: Polymer Chemistry
URI: http://scholarbank.nus.edu.sg/handle/10635/94555
ISSN: 0887624X
DOI: 10.1002/pola.20294
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

34
checked on Feb 22, 2018

WEB OF SCIENCETM
Citations

31
checked on Jan 22, 2018

Page view(s)

25
checked on Feb 19, 2018

Google ScholarTM

Check

Altmetric


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