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Synthesis and properties of oligophenylene-layered polymers
Yasuhiro Morisaki1, Hiroaki Imoto, Junpei Miyake
1Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. ymo@chujo.synchem.kyoto-u.ac.jp.
Macromolecular Rapid Communications
|June 28, 2011
Summary
Syntheses of layered polymers using a xanthene scaffold were achieved. These polymers demonstrated photo-excited energy transfer from oligophenylenes to terminal nitrobenzene units, acting as fluorescence quenchers.
Area of Science:
- Polymer Chemistry
- Organic Synthesis
- Materials Science
Background:
- Xanthene scaffolds are versatile building blocks in organic materials.
- Layered oligophenylenes offer tunable electronic and optical properties.
- Suzuki-Miyaura coupling is a powerful method for C-C bond formation in polymer synthesis.
Purpose of the Study:
- To synthesize novel phenylene-, biphenylene-, and terphenylene-layered polymers incorporating a xanthene scaffold.
- To investigate the optical properties of these newly synthesized polymers.
- To explore energy transfer mechanisms within these polymer systems.
Main Methods:
- Modified Suzuki-Miyaura coupling reaction for polymer synthesis.
- Detailed optical property characterization.
- Investigation of photo-excited energy transfer dynamics.
Main Results:
- Successful synthesis of phenylene-, biphenylene-, and terphenylene-layered polymers with a xanthene core.
- Comprehensive optical property analysis revealed distinct characteristics.
- Polymers end-capped with nitrobenzene units showed efficient photo-excited energy transfer from the oligophenylene backbone to the terminal quenchers.
Conclusions:
- The modified Suzuki-Miyaura coupling is effective for creating xanthene-based layered polymers.
- The synthesized polymers exhibit interesting optical properties and energy transfer capabilities.
- Nitrobenzene end-capping facilitates photo-excited energy transfer, demonstrating potential for optoelectronic applications.
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