| 含氧光敏引发体系的研究——V.硫醇添加剂的作用 |
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| 引用本文： | 王儿,李妙贞,常志英,冯新德.含氧光敏引发体系的研究——V.硫醇添加剂的作用[J].高分子学报,1987,0(1):35-39. |
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| 作者姓名： | 王儿 李妙贞 常志英 冯新德 |
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| 作者单位： | 中国科学院感光化学研究所 北京
(王儿，李妙贞，常志英)，北京大学化学系 北京(冯新德) |
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| 摘 要： | 采用二笨甲酮/三乙胺/硫醇体系作为引发剂,在含氧条件下进行了MMA光聚合反应的动力学研究。实验结果指出,芳香族和脂肪族的硫醇都能加速体系中的光氧化反应,使聚合反应诱导期缩短,芳香族硫醇对聚合反应的加速作(?)比脂肪族硫醇有效。例如,对-甲苯硫酚作添加剂时,使相对量子收率φO_2/φN_2增加到1.8。
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| 关 键 词： | 光聚合 引发体系 添加剂 硫醇类 |
| 收稿时间： | 1984-10-09 |
STUDY OF PHOTOSENSITIZED INITIATION SYSTEM CONTAINING OXYGEN V. Effect of Mercaptan Additives |
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| WANG Er-jian,LI Miao-zhen,CHANG Zhi-ying,FENG Xin-de.STUDY OF PHOTOSENSITIZED INITIATION SYSTEM CONTAINING OXYGEN V. Effect of Mercaptan Additives[J].Acta Polymerica Sinica,1987,0(1):35-39. |
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| Authors: | WANG Er-jian LI Miao-zhen CHANG Zhi-ying FENG Xin-de |
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| Institution: | Institute of Photographic Chemistry; Academia Sinica; Beijing; Department of Chemistry; Peking University; Beijing |
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| Abstract: | A kinetic study on the photopolymerization of MMA with benzophenone/triethylamine/mer-captan system as initiator has been carried out in the presence of oxygen. It was found that both aliphatic and aromatic thiols promoted th photooxygenation process, leading to obvious decrease in an induction period of polymerization. The rate-acceleration pf aromatic thiols is more effective than that of aliphatic ones. For example P-toluene thiol as additive increases the relative quantum yield φO2/φN2 to 1.8. |
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| Keywords: | Photopolymerization Initiation System Additives Mercaptans |
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