| 铈离子与氨基甲酸酯类化合物引发丙烯酰胺聚合的研究 |
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| 引用本文： | 王伟,孙燕慧,宋叶,丘坤元,冯新德.铈离子与氨基甲酸酯类化合物引发丙烯酰胺聚合的研究[J].高分子学报,1990,0(2):213-220. |
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| 作者姓名： | 王伟 孙燕慧 宋叶 丘坤元 冯新德 |
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| 作者单位： | 北京大学化学系 北京
(王伟，孙燕慧，宋叶，丘坤元)，北京大学化学系 北京(冯新德) |
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| 摘 要： | 本文对铈离子与苯基氨基甲酸酯类化合物在H_2O-CH_3CN(3∶1,V/V)及H_2O-HCONH_2(1∶2,V/V)两种介质中引发丙烯酰胺的聚合进行了研究。考察了不同结构的苯基氨基甲酸酯对聚合的影响。苯基氨基甲酸酯类化合物对铈离子引发聚合均有促进作用,其中对-甲苯基氨基甲酸酯的促进作用最为显著。测定了聚合反应表现活化能及聚合动力学方程,并提出了聚合反应机理。
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| 关 键 词： | 丙烯酰胺 氧化还原引发体系 铈离子 氨基甲酸酯 聚合速度方程 聚合表观活化能 |
| 收稿时间： | 1988-12-01 |
STUDIES ON THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE INITIATED BY CERIC ION/ALKYL PHENYL-CARBAMATE AND ALKYL 4-METHYLPHENYL-CARBAMATE SYSTEMS |
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| WANG Wei,SUN Yan-hui,SONG Ye,QIU Kun-yuan,FENG Xin-de.STUDIES ON THE KINETICS OF THE POLYMERIZATION OF ACRYLAMIDE INITIATED BY CERIC ION/ALKYL PHENYL-CARBAMATE AND ALKYL 4-METHYLPHENYL-CARBAMATE SYSTEMS[J].Acta Polymerica Sinica,1990,0(2):213-220. |
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| Authors: | WANG Wei SUN Yan-hui SONG Ye QIU Kun-yuan FENG Xin-de |
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| Institution: | Chemistry Department; Peking University; Beijing |
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| Abstract: | The Kinetics of polymerization of acrylamide (AAM) initiated by eerie ion-alkyl phenylcarbamate and eerie ion-alkyl 4-methylphenylcarbamate redox systems in the temperature rang of 20-40℃ has been investigated. It was found that eeric ion coupled with alkyl 4-methylphenylcarbamate was a very effective initiating system for the polymerization of AAM. The overall activation energy of polymerization and the rate equations of polymerization were determined. A initiation mechanism involving the formation of a complex between Ce4+ and alkyl phenylcarbamate whose decomposition yields the initiating free radical has been suggested. |
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| Keywords: | Acrylamide Redox initiation system Ceric ion Alkyl phenylcarbamate Rate equation of polymerization Overall activation energy of polymerization |
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