| A STUDY ON THE SPECTRUM CHARACTER AND PHOTOSTABILIZATION ABILITY OF A NOVEL UV-ABSORBER-DIBENZOYL METHANE |
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| 作者姓名： | 吴世康 戴光松 刘鲁生 |
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| 作者单位： | Institute of Photographic Chemistry，Academia Sinica Beijing，Institute of Photographic Chemistry，Academia Sinica Beijing，Institute of Photographic Chemistry，Academia Sinica Beijing |
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| 摘 要： | The absorption and fluorescence spectra of dibenzoyl methane have been studied. From the absorption spectra it was found that there are two peaks locating at 252 nm and 340 nm, respectively, similar to that of o-hydroxy benzophenone which can form intra-molecular hydrogen bond. Besides, an uncommonly large Stoke's shift of fluorescence can be observed in fluorescence spectra. The photostabilizing effects of dibenzoyl methane and UV-531 on the photodegradation of poly (cis-1, 4-butadiene) in solution have been investigated and compared. A possible mechanism was discussed.
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| 关 键 词： | β-diketones UV-absorber Photostabilizer Intra-molecular hydrogen bond |
| 收稿时间： | 1983-10-18 |
A STUDY ON THE SPECTRUM CHARACTER AND PHOTOSTABILIZATION ABILITY OF A NOVEL UV-ABSORBER-DIBENZOYL METHANE |
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| WU Shikang,DAI Guangsong,LIU Lusheng.A STUDY ON THE SPECTRUM CHARACTER AND PHOTOSTABILIZATION ABILITY OF A NOVEL UV-ABSORBER-DIBENZOYL METHANE[J].Chinese Journal of Polymer Science,1987,0(1):7-11. |
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| Authors: | WU Shikang DAI Guangsong LIU Lusheng |
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| Institution: | Institute of Photographic Chemistry; Academia Sinica Beijing |
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| Abstract: | The absorption and fluorescence spectra of dibenzoyl methane have been studied. From the absorption spectra it was found that there are two peaks locating at 252 nm and 340 nm, respectively, similar to that of o-hydroxy benzophenone which can form intra-molecular hydrogen bond. Besides, an uncommonly large Stoke's shift of fluorescence can be observed in fluorescence spectra. The photostabilizing effects of dibenzoyl methane and UV-531 on the photodegradation of poly (cis-1, 4-butadiene) in solution have been investigated and compared. A possible mechanism was discussed. |
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