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| 用荧光光谱法研究聚(甲基环己基硅烷)的光解过程 | |
| 引用本文： | 胡慧萍,陈启元,黄可龙,陈德本. 用荧光光谱法研究聚(甲基环己基硅烷)的光解过程[J]. 湖南师范大学自然科学学报, 2000, 23(4): 46-50 |
| 作者姓名： | 胡慧萍 陈启元 黄可龙 陈德本 |
| 作者单位： | 1. 中南大学化学化工学院化学系,中国,长沙,410083 2. 四川大学化学系,中国,成都,610064 |
| 基金项目： | 中国科学院资助项目，28970817， |
| 摘 要： | 研究了在空气中经紫外光辐照前后的聚（甲基环己基硅烷）（简记为：ＰＭＣＳ）溶液或膜的荧光光谱。结果表明，随着紫我光照时间的增加，ＰＭＣＳ溶液和膜的荧光光谱峰位依次蓝移，荧光强度依次降低，并用ＧＰＣ，ＸＰＳ及ＩＲ光谱研究了在空气中经紫外光辐照前后的ＰＭＣＳ溶液或膜。结果表明，其荧光光谱峰位蓝移及荧光强度降低，与聚硅烷发生了光降解和光氧化过程有关。 |
| 关 键 词： | 聚 甲基环己基硅烷 荧光光谱 光降解 光氧化 |
| 修稿时间： | 2000-08-27 |
Studies on the Photoreaction of Poly(Methylcyclohexylsilane) by Fluorescence Spectroscopy |
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| HU Hui-ping,CHEN Qi-yuan,HUANG Ke-long,CHEN De-ben. Studies on the Photoreaction of Poly(Methylcyclohexylsilane) by Fluorescence Spectroscopy[J]. Journal of Natural Science of Hunan Normal University, 2000, 23(4): 46-50 | |
| Authors: | HU Hui-ping CHEN Qi-yuan HUANG Ke-long CHEN De-ben |
| Abstract: | The fluorescence spectra of poly(methylcyclohexylsilane) (abbrevd. PMCS) solutions in cyclohexane or PMCS films before and after UV irradiation in air were studied. The experimental results showed that the positions of the fluorescence peaks shifted to a shorter wavelength and the fluorescence intensities decreased gradually with an increase of UV exposure time. The dependences of GPC, XPS and IR spectra of PMCS solutions or PMCS films upon UV exposure in air indicated that these phenomena are in accordance with the processes of photodegradation and photo oxidation, which led to decreasing molecular weights and the formation of siloxane structure in silicon silicon main chains. |
| Keywords: | poly(methylcyclohexylsilane) PMCS film fluorescence spectrum photodegradation photo oxidation |
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