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 년도별 목차보기 |
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| 발행년도/권호 |
1991 년 / 권호: V.3,no.3,Sept |
| 논문제목1(원어) |
2,4-디메틸이미다졸환을 가지는 아조계 카디온염료의 포토크로미즘 |
| 논문제목2(타언어) |
Photochromism of Cationic Azo Dyes Containing 2,4-Dimethylimidazole |
| 저자(원어) |
Cho, Myung Lae (Department of Dyeing and Finishing, College of Engineering Kyungpook National University, Taegu 702-701, Korea) Yoon, Nam Sik (Department of Dyeing and Finishing, College of Engineering Kyungpook National University, Taegu 702-701, Korea) |
| 저자(타언어) |
Cho, Myung Lae (Department of Dyeing and Finishing, College of Engineering Kyungpook National University, Taegu 702-701, Korea) Yoon, Nam Sik (Department of Dyeing and Finishing, College of Engineering Kyungpook National University, Taegu 702-701, Korea) |
| 소속(원어) |
Cho, Myung Lae (Department of Dyeing and Finishing, College of Engineering Kyungpook National Univer |
| 소속(타언어) |
Cho, Myung Lae (Department of Dyeing and Finishing, College of Engineering Kyungpook National Univer |
| 시작/끝
페이지 |
1 ~ 5 총페이지 : 5 |
| 언어(원어) |
Korean |
| 초록 |
Cationic azo dyes were synthesized by coupling aniline and its derivatives with 2,4-dimethyl imidazole as a coupler, and their photochromic behavior was investigated. The dyes exhibited little photochromism on wool, but to a considerable degree on Dacron T92(anionic modified polyester), the photochromism being prominent for the dye with electron-releasing substituent on diazo component. Little photochromism on wool can be attributed to a decreased mobility of dye by the various interactions between the dye and wool molecules, which interferes the cis-trans isomeriation of dye. On Dacron T92 there can not be any obstacle for the cis-trans isomerization of dye, hence reversible color change may occur. The electron-releasing substituent on diazo component may be helpful for the photochromism of dye by increasing the n-electron density of phenyl ring, which can stabilize the cis-form of the dye by the interaction with the positive charge of imidazole ring. |
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