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자료유형
학술저널
저자정보
Song, Dong-Hyun (School of Materials Science and Engineering, Seoul National Univ.) Kim, Jae-Pil (School of Materials Science and Engineering, Seoul National Univ.) Lee, Chul-Joo (Electronic Materials and Devices Research Center, Korea Institute of Science and Technology) Park, Ki-Hong (Electronic Materials and Devices Research Center, Korea Institute of Science and Technology)
저널정보
한국광과학회 Journal of photoscience : an international journal officail organ of the korean society of photoscience Journal of photoscience : an international journal officail organ of the korean society of photoscience 제8권 제3호
발행연도
2001.1
수록면
113 - 117 (5page)

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Several styrylquinolium salts were synthesized to investigate their absorption and thermal properties, which had five different p-aminobenzene units and three different counter ions (iodide, perchlorate, and hexafluorophosphorate anion), respectively. Hydroxy, methoxy, and methyl group in the meta position to the amino group led to bathochromic shift, while Ν-ethyl-Ν-chloroethylamino unit instead of Ν,Ν-diethylamino unit resulted in hypsochromic shift. A dye having a methoxy group in the meta position to the amino group had the highest molar extinction coefficient ($\xi$), while a dye carrying chloro group in Ν-alkyl chains had the lowest $\xi$. The type of counter ions had no effect on spectral properties like the maximum absorption wavelength and $\xi$. All styryl dyes had exothermic peaks at decomposition in DSC curves. Among these styryl dyes, S2 series with perchlorate anions showed the strongest exothermic decomposition. From TGA spectra, S3 series with hexafluorophosphorate anions had the best thermal stability and the sharpest threshold at thermal decomposition.

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