| 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) |
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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 北京(王尔鉴，董利明，李妙贞)，中国科学院感光化学研究所 北京(常志英) |
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| 摘 要： | 过去,作者曾发表了多种光敏引发体系引发烯类单体光聚合的工作,在研究2,2-二甲氧基苯乙酮在氧存在下引发甲基丙烯酸甲酯光聚合时,结合在聚合物链端的引发剂碎片具有光化学活性,在光聚合反应中产生高分子自由基,发生再次聚合,出现高分子量
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| 关 键 词： | 光聚合 二苯酮/三乙胺/MMA体系 再次光引发作用 |
STUDY OF THE PHOTOSENSITIZED INITIATION SYSTEM CONTAINING OXYGEN |
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| VI. STUDY OF THE PHOTOSENSITIZED INITIATION SYSTEM CONTAINING OXYGEN[J]. Acta Polymerica Sinica, 1990, 0(1) |
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| Authors: | VI |
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| Affiliation: | VI. The Sequential Photoinitiation Effect in the PhotopolymerizationProcess Initiated by Benzophenon/Triethylamine System WANG Erjian,DONG Liming,LI Miaozhen and CHANG Zhiying |
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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 content and chain requlator were studied. Reaction mechanism was also discussed. |
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| Keywords: | Photopolymerization Benzophenone/Amine/MMA system Sequential photoinitiation |
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