| 含氧光敏引发体系的研究——Ⅵ.二苯酮/三乙胺体系引发光聚合过程中的再次引发效应 |
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| 引用本文： | 王尔鉴,董利明,李妙贞,常志英.含氧光敏引发体系的研究——Ⅵ.二苯酮/三乙胺体系引发光聚合过程中的再次引发效应[J].高分子学报,1990,0(1):123-128. |
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| 作者姓名： | 王尔鉴 董利明 李妙贞 常志英 |
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| 作者单位： | 中国科学院感光化学研究所 |
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| 摘 要： |
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| 关 键 词： | MMA 光聚合 光敏引发体系 |
| 收稿时间： | 1989-02-27 |
STUDY OF THE PHOTOSENSITIZED INITIATION SYSTEM CONTAINING OXYGEN |
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| WANG Er-jian,DONG Li-ming,LI Miao-zhen,CHANG Zhi-ying.STUDY OF THE PHOTOSENSITIZED INITIATION SYSTEM CONTAINING OXYGEN[J].Acta Polymerica Sinica,1990,0(1):123-128. |
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| Authors: | WANG Er-jian DONG Li-ming LI Miao-zhen CHANG Zhi-ying |
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| Institution: | Institute of Photographic Chemistry; Academia Sinica; Beijing |
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| Abstract: | A sequential photoinitiation. phenomenon was found in the benzophenone/triethylamine/ MMA radical photopolymerization system, which leads to increase of molecular weight, amine content of polymer formed with progressive irradiation time. The results, obtained demonstrate that the sequential photoinitiation originates from the photoreaction of active amine groups at the polymer chains with excited benzophenones producing a polymer radicals, which induce sequential polymerization. The effects of benzophenone and amine concentrations,oxygen co-ntent and chain requlator were studied. Reaction mechanism was also discussed. |
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