| PHOTOINITIATED POLYMERIZATION BY ARYLIODONIUM SALT/BENZOPHENONE/TERTIARY AMINE BINARY PHOTOSENSITIZATION SYSTEM |
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| 作者姓名： | 贺军辉 王尔鉴 |
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| 作者单位： | Institute of Photographic Chemistry，Academia Sinica，Beijing，Institute of Photographic Chemistry，Academia Sinica，Beijing |
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| 摘 要： | A novel binary photosensitization system composed of benzophenone (BP)/diphenyliodonium chloride (DPIOC) Ariethylamine (TEA), exhibiting a good photoresponse at near UV and visible light regions, was used as the initiator for photopolymerization of MMA. The radical photogeneration in the binary system consists mainly of two parallel reactions, i. e. , BP/TEA photohydrogen-abstraction and DPIOC/TEA complex photodecomposition, but the latter is more active than the former. The results of comparative study indicate that the rate of polymerization induced by the binary system (BDT)is remarkably higher than those by the corresponding single systems The polymerization rates are proportional to BP]~(0.16), DPIOC]~(0.32) TEA]~(0.45) and MMA]. The mechanism is also discussed.
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| 收稿时间： | 1989-01-30 |
PHOTOINITIATED POLYMERIZATION BY ARYLIODONIUM SALT/BENZOPHENONE/TERTIARY AMINE BINARY PHOTOSENSITIZATION SYSTEM |
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| HE Junhui,WANG Erjian.PHOTOINITIATED POLYMERIZATION BY ARYLIODONIUM SALT/BENZOPHENONE/TERTIARY AMINE BINARY PHOTOSENSITIZATION SYSTEM[J].Chinese Journal of Polymer Science,1990,0(1):44-50. |
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| Authors: | HE Junhui WANG Erjian |
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| Institution: | Institute of Photographic Chemistry; Academia Sinica; Beijing |
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| Abstract: | A novel binary photosensitization system composed of benzophenone (BP)/diphenyliodonium chloride (DPIOC) Ariethylamine (TEA), exhibiting a good photoresponse at near UV and visible light regions, was used as the initiator for photopolymerization of MMA. The radical photogeneration in the binary system consists mainly of two parallel reactions, i. e. , BP/TEA photohydrogen-abstraction and DPIOC/TEA complex photodecomposition, but the latter is more active than the former. The results of comparative study indicate that the rate of polymerization induced by the binary system (BDT)is remarkably higher than those by the corresponding single systems The polymerization rates are proportional to BP]~(0.16), DPIOC]~(0.32) TEA]~(0.45) and MMA]. The mechanism is also discussed. |
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| Keywords: | Photopolymerization Binary Initiation System Onium Salt Benzophenone |
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