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Synthesis of π-conjugated copolymer with dibenzo[d,d′]benzo[1,2-b:4,5-b′]difuran unit in the main chain
- Source :
- Synthetic Metals. 159:939-942
- Publication Year :
- 2009
- Publisher :
- Elsevier BV, 2009.
-
Abstract
- New π-conjugated polymers with dibenzo[d,d′]benzo[1,2-b:4,5-b′]difuran (DBBDF) unit in the main chains were synthesized. Copolymerization of 6,12-diiodo-DBBDF with p-diethynylbenzene or 2,7-diethynylfluorene derivative under Sonogashira–Hagiwara coupling-reaction condition gave the corresponding copolymer. The resulting copolymers were soluble in organic solvents such as tetrahydrofuran and chloroform. In UV–vis absorption spectra, both copolymers showed red-shifted spectra compared to their monomer units. In the chloroform solutions, the copolymer with DBBDF and p-diethynylbenzene units showed yellowish-green emission, while the copolymer with DBBDF and 2,7-diethynylfluorene units did greenish-blue emission.
- Subjects :
- chemistry.chemical_classification
Chloroform
Absorption spectroscopy
Mechanical Engineering
Metals and Alloys
Polymer
Conjugated system
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
chemistry.chemical_compound
Monomer
chemistry
Mechanics of Materials
Polymer chemistry
Materials Chemistry
Copolymer
Derivative (chemistry)
Tetrahydrofuran
Subjects
Details
- ISSN :
- 03796779
- Volume :
- 159
- Database :
- OpenAIRE
- Journal :
- Synthetic Metals
- Accession number :
- edsair.doi...........19501ddc9390c347c18f3a711f0b849e