| 학회 |
한국공업화학회 |
| 학술대회 |
2005년 봄 (05/13 ~ 05/14, 충남대학교) |
| 권호 |
9권 1호 |
| 발표분야 |
고분자 |
| 제목 |
Fluorescein containing polymer for Luminescence Conversion LEDs |
| 초록 |
We have synthesized low molecular weight polyesters containing Fluorescein units, exhibiting bright yellow fluorescence. Both poly (fluoresceinyl terephthalate) (PFT) and benzoyl protected poly (fluoresceinyl terephthalate) (PFT-B) were soluble in most of the organic polar solvents. The onset degradation temperature of PFT and PFT-B were higher than that of the Fluorescein dye. When a NaOH solution was added, fluorescence efficiency was highly increased. The PFT-B salts exhibit significantly enhanced fluorescence emission, compared to the neutral form. The enhanced emission is attributed to the extended conjugation length of the salt form. PMMA films containing the fluorescein salt were prepared via in-situ polymerization of methyl methacrylate in the presence of the fluorescein salt dissolved in DMF. The photoluminescence (PL) and thermal stability (DSC, TGA) of the resulting films will be presented in detail. |
| 저자 |
유성수, Periyayya Uthirakumar, 이연식
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| 소속 |
전북대 |
| 키워드 |
Fluorescein; luminescence conversion; photoluminescence
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| E-Mail |
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