| 过硫酸盐和脂肪环胺体系引发机理的ESR研究 |
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| 引用本文： | 冯新德,郭新秋,丘坤元.过硫酸盐和脂肪环胺体系引发机理的ESR研究[J].高分子学报,1987,0(5):327-332. |
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| 作者姓名： | 冯新德 郭新秋 丘坤元 |
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| 作者单位： | 北京大学化学系
(冯新德，郭新秋)，北京大学化学系(丘坤元) |
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| 摘 要： | 用ESR方法研究了过硫酸盐和脂肪环胺吗啉,哌啶及其N-烷基取代衍生物体系引发反应的初级自由基,结合端基分析,证实了这类脂肪环胺与过硫酸盐反应产生的初级自由基都能引发烯类单体聚合。当所用的是脂环仲胺时,其初级自由基为氮中心自由基;用脂环叔胺时,初级自由基是N-烷基的α-碳中心自由基。
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| 关 键 词： | ESR研究 过硫酸盐和脂肪环胺体系 氧化还原引发机理 氮中心自由基 |
| 收稿时间： | 1987-03-04 |
ESR STUDY ON THE INITIATION MECHANISM OF PEROXYDISULFATE/ALIPHATIC CYCLIC AMINE SYSTEM |
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| FENG Xin-de,GUO Xin-qiu,QIU Kun-yuan.ESR STUDY ON THE INITIATION MECHANISM OF PEROXYDISULFATE/ALIPHATIC CYCLIC AMINE SYSTEM[J].Acta Polymerica Sinica,1987,0(5):327-332. |
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| Authors: | FENG Xin-de GUO Xin-qiu QIU Kun-yuan |
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| Institution: | Department of Chemistry; Peking University; Beijing |
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| Abstract: | The initial free radicals of cyclic amine species formed through the reaction of peroxgdisul-fate with cyclic amines such as morpholine (MP), piperidine (PD) and their N-substituted derivatives were studied by spin trapping technique and ESR spectra. It was confirmed by ESR spectra and the amino end group analysis that the morpholino and piperidino free radicals were responsible for initiation of winyl polymerization in addition to sulfate radical (HO3SO) when peroxydisulfate/alicyclic secondary amine system was used as initiator, and the cyclic aminoalkyl radical was one of the initial free radicals in the system when peroxydisulfate was reacted with tertiary cyclic amines such as N-methyl morpholine (NMMP), N-ethyl morpholine (NEMP). |
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| Keywords: | ESR study Peroxydisulfate/Alicyclic Amine System Redox Initiation Mechanism Morpholino Free Radical Piperidino Free Radical Cyclicamino Alkyl Radical |
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