Palladium on carbon-catalyzed direct C-H arylation polycondensation of 3,4-ethylenedioxythiophene with various dibromoarenes
| Autor: | Shotaro Hayashi, Yoshihisa Kojima, Toshio Koizumi |
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| Rok vydání: | 2017 |
| Předmět: |
Condensation polymer
Polymers and Plastics 010405 organic chemistry Chemistry Organic Chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Catalysis Potassium carbonate chemistry.chemical_compound Acetic acid Polymerization Palladium on carbon Polymer chemistry Materials Chemistry Copolymer Organic chemistry Palladium |
| Zdroj: | Journal of Polymer Science Part A: Polymer Chemistry. 55:1183-1188 |
| ISSN: | 0887-624X |
| DOI: | 10.1002/pola.28475 |
| Popis: | We have demonstrated a direct arylation polycondensation of 3,4-ethylenedioxythiophene with 2,7-dibromo-9,9-dioctylfluorene using palladium on carbon (Pd/C) as a catalyst. Pd/C is a low-cost solid-supported palladium catalyst, giving one of the effective catalytic systems for direct arylation. The Pd/C-catalyzed direct arylation polycondensation with acetic acid/potassium carbonate in N,N-dimethylacetamide furnished a high molecular weight π-conjugated alternating copolymer of EDOT-fluorene (Mn = 89,300, Mw/Mn = 3.27) in high yield. The polycondensation of EDOT with various dibromoarenes was also achieved, giving EDOT-carbazole, EDOT-dialylamine, and EDOT-bithiophene polymers. Optical and electrochemical properties of the polymers were also discussed. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 |
| Databáze: | OpenAIRE |
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