Synthesis, characterization, and properties of a new thiophene–benzobisthiazole copolymer
| Autor: | In Tae Kim, Jun-Gill Kang, So Young Kim, Changmoon Park, Sung-Ho Jin, Sung Kwon Kang, Jong Sook Lee, Sang Woo Lee, Gi Beum Park, So Ha Lee |
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| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Materials science Mechanical Engineering Metals and Alloys Stacking Polymer Conjugated system Condensed Matter Physics Electronic Optical and Magnetic Materials End-group chemistry.chemical_compound chemistry Mechanics of Materials Polymer chemistry Materials Chemistry Thiophene Copolymer Thermal stability Absorption (chemistry) |
| Zdroj: | Synthetic Metals. 156:38-41 |
| ISSN: | 0379-6779 |
| DOI: | 10.1016/j.synthmet.2005.10.002 |
| Popis: | Stille coupling reaction of 4,8-dibromo-2,6-dihexyl-benzo[1,2-d:4,5-d′]bisthiazole and 2,5-bis(trimethylstannyl)thiophene afford a new conjugated conducting copolymer 1 . The polymer was completely soluble in common organic solvents. The electrical conductivity of the polymer is at about 3.8 × 10 −1 S/cm. The UV–vis spectra of the polymer in a chloroform solution and in a spin-cast film on a piece of glass show π–π * absorption bands ( λ max ) of 460 nm and 538 nm, respectively. The 78 nm red shift of the λ max of the polymer in the film, in comparison to that observed for the polymer in chloroform, possibly indicates much more planarization and aggregates formation due to the π electron stacking in terms of inter-chain characteristics in the solid state. The structure of the polymer has been compared with that of compound 3 as model compound. Rationalizations are presented for optical properties of the polymer in relation to polymer structure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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