Novel Thiophene–Phenylene–Thiophene Fused Bislactam-Based Donor–Acceptor Type Conjugate Polymers: Synthesis by Direct Arylation and Properties
| Autor: | Mithrabinda K. Poduval, Tae-Hyun Kim, Juan Casado, Rocío Ponce Ortiz, J. Teodomiro López Navarrete, Paula Mayorga Burrezo |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Condensation polymer Materials science Polymers and Plastics Organic Chemistry Polymer Inorganic Chemistry chemistry.chemical_compound chemistry Polymerization Thin-film transistor Phenylene Intramolecular force Polymer chemistry Materials Chemistry Copolymer Thiophene |
| Zdroj: | Macromolecules. 46:9220-9230 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma4018907 |
| Popis: | Three new donor–acceptor copolymers based on thiophene–phenylene–thiophene fused bislactam and various donors (3,4-dodecylthiophene, 4,4′-didodecyl-2,2′-bithiophene, and ethylenedioxythiophene) were synthesized, characterized, and used in field-effect transistors. Polycondensation was performed using nonactivated thiophene derivatives by employing palladium-catalyzed direct arylation under phosphine-free conditions. This method is superior to traditional cross-coupling polymerization because it requires fewer synthetic operations and does not employ toxic organometallic intermediates. Regioselective polymers can also be generated by using β-substituted thiophene derivatives. The studied polymers were tested in a bottom gate top contact thin film transistor (OTFT) architecture. The best electronic performance was shown by polymer P3, with enhanced π-conjugation due to the appearance of intramolecular attractive interactions. |
| Databáze: | OpenAIRE |
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