| STUDIES ON THE INITIATION MECHANISM OF CERIC ION AND ACETYLACETONE REDOX SYSTEM IN VINYL POLYMERIZATION |
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| 引用本文： | 丘坤元,郭新秋,张东,冯新德. STUDIES ON THE INITIATION MECHANISM OF CERIC ION AND ACETYLACETONE REDOX SYSTEM IN VINYL POLYMERIZATION[J]. 高分子科学, 1991, 0(2): 145-150 |
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| 作者姓名： | 丘坤元 郭新秋 张东 冯新德 |
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| 作者单位： | Department of Chemistry，Peking University，Beijing，Department of Chemistry，Peking University，Beijing，Department of Chemistry，Peking University，Beijing，Department of Chemistry，Peking University，Beijing |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China |
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| 摘 要： | The initiation mechanism of acrylamide (AAM)polymerization using ceric ion/acetylacetone system as an initiator has been studied. The redox polymerization was revealed by the low value of overall activation energy of AAm polymerization. The structure of free radicals formed from above-mentioned initiation sytem were detected by radical trapping and ESR spectra techniques and the end groups of polymers obtained were determined by FT-IR spectra analysis method. Based on these results the initiation mechanism is proposed.
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| 收稿时间： | 1990-04-03 |
STUDIES ON THE INITIATION MECHANISM OF CERIC ION AND ACETYLACETONE REDOX SYSTEM IN VINYL POLYMERIZATION |
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| QIU Kunyuan,GUO Xinqiu,ZHANG Dong,FENG Xinde. STUDIES ON THE INITIATION MECHANISM OF CERIC ION AND ACETYLACETONE REDOX SYSTEM IN VINYL POLYMERIZATION[J]. Chinese Journal of Polymer Science, 1991, 0(2): 145-150 |
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| Authors: | QIU Kunyuan GUO Xinqiu ZHANG Dong FENG Xinde |
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| Affiliation: | Department of Chemistry; Peking University; Beijing |
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| Abstract: | The initiation mechanism of acrylamide (AAM)polymerization using ceric ion/acetylacetone system as an initiator has been studied. The redox polymerization was revealed by the low value of overall activation energy of AAm polymerization. The structure of free radicals formed from above-mentioned initiation sytem were detected by radical trapping and ESR spectra techniques and the end groups of polymers obtained were determined by FT-IR spectra analysis method. Based on these results the initiation mechanism is proposed. |
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| Keywords: | Ceric ion and acetylacetone redox system Acrylamide polymerization Acrylonitrile polymerization ESR studies FT-IR spectra end group analysis |
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