Alternating copolymers of N-(2-ethylhexyl)-carbazole derivatives with aniline units: Synthesis and properties
- Title
- Alternating copolymers of N-(2-ethylhexyl)-carbazole derivatives with aniline units: Synthesis and properties
- Author(s)
- Wang, Hui ; Ryu, Jeong-Tak ; Han, Yoon Soo ; Kim, Dae-Hwan ; Choi, Byeong Dae ; Park, Lee Soon ; Kwon, Younghwan
- Issued Date
- 2006-12
- Citation
- Molecular Crystals and Liquid Crystals, v.459, no.1, pp.85 - 94
- Type
- Article
- Author Keywords
- alternating copolymer ; carbazole ; palladium-catalyzed polycondensation ; triarylamine
- Keywords
- Alternating Copolymer ; Carbazole ; POLYFLUORENE ; Reaction Linkage ; STABILITY ; Synthesis (Chemical) ; Triarylamine ; Conjugated Polymers ; Copolymers ; DERIVATIVES ; Electroluminescence ; Energy Gap ; LIGHT-emITTING-DIODES ; Nitrogen Compounds ; Palladium-Catalyzed Polycondensation ; PHOTOLUMINESCENCE
- ISSN
- 1542-1406
- Abstract
- Alternating copolymers such as P(3,6-EHCZ-alt-Al), P(Bis-EHCZ-alt-Al) and P(2,7-EHCZ-alt-Al), based on blue-emitting carbazole and hole-transporting triarylamine units in the polymer backbone, were successfully synthesized by using palladium-catalyzed polycondensation reaction. P(Bis-EHCZ-alt-Al) exhibited blue shift both in UV-Vis absorption and PL emission, while P(2,7-EHCZ-alt-Al) showed red shift in UV-Vis absorption and blue shift in PL emission, compared to P(3,6-EHCZ-alt-Al). It was observed from the optical and electrochemical characterization that band gap energy (2.91∼3.07 eV) and HOMO (-5.25∼5.11 eV) levels of the copolymers could be fine-tuned by the carbazole content in the repeating unit and different reaction linkage on the carbazole ring.
- Publisher
- Taylor & Francis
- Related Researcher
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Kim, Dae-Hwan 에너지환경연구부
- Research Interests
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