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Low-band gap copolymers containing thienothiadiazole units: Synthesis, optical, and electrochemical properties
- 1.0343355 - ÚMCH 2011 RIV US eng J - Journal Article
Kmínek, Ivan - Výprachtický, Drahomír - Kříž, Jaroslav - Dybal, Jiří - Cimrová, Věra
Low-band gap copolymers containing thienothiadiazole units: Synthesis, optical, and electrochemical properties.
Journal of Polymer Science. Part A - Polymer Chemistry. Roč. 48, č. 13 (2010), s. 2743-2756. ISSN 0887-624X. E-ISSN 1099-0518
R&D Projects: GA MŠMT(CZ) 1M06031; GA AV ČR IAA4050409
Institutional research plan: CEZ:AV0Z40500505
Keywords : conjugated polymers * electrochemistry * low-band gap
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 3.894, year: 2010
Novel low-band gap alternating copolymers consisting of 9,9-bis(2-ethylhexyl)fluorene and 4,6-di(2-thienyl)thieno[3,4-c][1,2,5]thiadiazole and its 3,3 -dialkyl derivatives were synthesized and their photophysical and electrochemical properties were studied. The copolymers possess small optical band gap 1.3-1.4 eV. The absorption covers the whole visible spectral region. Polymer solutions exhibited solvatochromism and thermochromism, which is strongly supported by the involvement of the alkyl chains. The copolymers exhibited ambipolar redox properties and reversible electrochromic behavior.
Permanent Link: http://hdl.handle.net/11104/0005911
Number of the records: 1