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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Emission Modulation of Poly(vinyl acetate)-Tetrabutylphosphonium Tetrafluoroborate Hybrid Film Doped with 4-[Bis(4-methylphenyl)amino]-benzaldehyde
| Title: | Emission Modulation of Poly(vinyl acetate)-Tetrabutylphosphonium Tetrafluoroborate Hybrid Film Doped with 4-[Bis(4-methylphenyl)amino]-benzaldehyde |
| Authors: | Ogura, Kosuke Browse this author | | Hoshi, Zenzo Browse this author | | Nagata, Eisuke Browse this author | | Ichikawa, Ryoji Browse this author | | Nakanishi, Takayuki Browse this author | | Hasegawa, Yasuchika Browse this author →KAKEN DB | | Nakano, Hideyuki Browse this author |
| Keywords: | hybrid film | | phase separation | | fluorescent dye | | quaternary salt | | poly(vinyl acetate) |
| Issue Date: | 11-May-2015 |
| Publisher: | フォトポリマー学会 |
| Journal Title: | Journal of Photopolymer Science and Technology |
| Volume: | 28 |
| Issue: | 4 |
| Start Page: | 601 |
| End Page: | 604 |
| Publisher DOI: | 10.2494/photopolymer.28.601 |
| Abstract: | A hybrid film of poly(vinyl acetate) and tetrabutylphosphonium tetrafluoroborate together with 4-[bis(4-methylphenyl)amino]benzaldehyde as a fluorescent dopant was fabricated. It was found that the film exhibited thermally reversible phase-separation and dissolution transitions and that both homogeneous and phase-separated states could be obtained at room temperature by appropriate thermal treatments. In addition, emission modulation of the film was achieved by using the phase-separation-dissolution transitions. Fluorescence properties including fluorescence life times and quantum yields for the films in homogeneous film seemed to be unchanged by phase separation, suggesting that no significant change in the surrounding environment of the dopant molecules took place by phase-separation-dissolution cycles. Therefore, the emission modulation observed here was suggested to be due to mainly the change in the light-scattering effect caused by phase transitions. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/72429 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 長谷川 靖哉
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