A Synthesis and Characterization of Blue Luminescent Polymers = 청색 발광 고분자의 합성과 특성에 관한 연구

다국어 초록 (Multilingual Abstract)

Poly[1,8-octane-1,4-phenylenevinylene-2-methoxy-5-(2'-ethyl)hexoxy-1,4-phenyle nevinylene] (MEH-DPV), a confined blue-emissive soluble polymer, was synthesized. The blend films composed of well-known poly[2-methoxy-5-(2'-ethyl)hexoxy-1,4-phenylenevinylene)] (MEH-PPV) and the MEH-DPV in 1:1 weight ratio yielded photoluminescence (PL) spectrum corresponding to the MEH-PPV, whose mtensity was enhanced compared to that of pure MEH-PPV films. However, the blend films containing 90% or greater composition of the MEH-DPV showed two PL peaks corresponding to respecctive MEH-PPV and MEH-DPV. The enhanced PL of the blends is expected to be due to the photo-excited energy transfer between excited MEH-DPV (donor) and MEH-PPV (acceptor) chromophores, but the PL enhancement occurs only when the blend is not phase-separated. Our lateral force microscopy experiment revealed that the phase-separation of MEH-PPV/MEH-DPV films is dependent on the ratio of the two polymers.

목차 (Table of Contents)

• Correlation between energy transfer and phase separation in emissive polymer blends
• Abstract
• Introduction
• Experimental
• Results and Discussion
• Conclusion
• References
• Captions
• Synthesis of a new poly (phenylene vinylene) derivative and its emissionengancement by blending with a blue-emissive polymer
• Abstract
• Introduction
• Experimental
• Results and Discussion
• Conclusion
• References
• Captions
• Photoluminescence of conjugated polymers blended with a blue-emissive polymer
• Abstract
• Introduction
• Experimental
• Results and Discussion
• Captions
• References
• Captions