Synthesis and luminescence properties of three novel polyfluorene copolymers

We report on the synthesis and characterization (including structural, optical, electrochemical and electroluminescence properties) of three alternating F- alt-X copolymers, where F is 9,9-bis(2′-ethylhexyl)fluorene unit and the X comonomer varies from a phenylene, to a thiophene and to a thiophene-...

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Bibliographic Details
Published in:Polymer (Guilford) 2003-03, Vol.44 (6), p.1843-1850
Main Authors: Charas, A., Morgado, J., Martinho, J.M.G., Alcácer, L., Lim, S.F., Friend, R.H., Cacialli, F.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Luminescence
Organic polymers
Physicochemistry of polymers
Polymer physical chemistry
Polymer synthesis
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:We report on the synthesis and characterization (including structural, optical, electrochemical and electroluminescence properties) of three alternating F- alt-X copolymers, where F is 9,9-bis(2′-ethylhexyl)fluorene unit and the X comonomer varies from a phenylene, to a thiophene and to a thiophene- S, S-dioxide unit. Among these X comonomers, the phenylene group is at the origin of a blue-emitting copolymer with unitary luminescence efficiency in solution, while thiophene- S, S-dioxide promotes the highest electron affinity. These copolymers are also used in the fabrication of light-emitting diodes.
ISSN:0032-3861
1873-2291
DOI:10.1016/S0032-3861(03)00028-4