过硫酸盐和N,N,N′,N′-四甲基乙二胺体系引发烯类聚合机理的研究

郭新秋; 丘坤元; 冯新德

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过硫酸盐和N,N,N′,N′-四甲基乙二胺体系引发烯类聚合机理的研究

研究简报 | 更新时间：2021-03-19

- 过硫酸盐和N,N,N′,N′-四甲基乙二胺体系引发烯类聚合机理的研究
- STUDIES ON THE INITIATION MECHANISM OF PEROXYDISULFATE/N, N,N',N'-TETRAMETHYL- ETHYLENEDIAMINE SYSTEM IN VINYL POLYMERIZATION
- 高分子学报 1988年第2期页码：152-156
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- 纸质出版日期：1988-4-20，
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郭新秋, 丘坤元, 冯新德. 过硫酸盐和N,N,N′,N′-四甲基乙二胺体系引发烯类聚合机理的研究[J]. 高分子学报, 1988,(2):152-156.

GUO Xin-qiu, QIU Kun-yuan, FENG Xin-de. STUDIES ON THE INITIATION MECHANISM OF PEROXYDISULFATE/N, N,N',N'-TETRAMETHYL- ETHYLENEDIAMINE SYSTEM IN VINYL POLYMERIZATION[J]. Acta Polymerica Sinica, 1988,(2):152-156.
郭新秋, 丘坤元, 冯新德. 过硫酸盐和N,N,N′,N′-四甲基乙二胺体系引发烯类聚合机理的研究[J]. 高分子学报, 1988,(2):152-156. DOI：

GUO Xin-qiu, QIU Kun-yuan, FENG Xin-de. STUDIES ON THE INITIATION MECHANISM OF PEROXYDISULFATE/N, N,N',N'-TETRAMETHYL- ETHYLENEDIAMINE SYSTEM IN VINYL POLYMERIZATION[J]. Acta Polymerica Sinica, 1988,(2):152-156. DOI：

摘要

Abstract

The initiation mechanism of the title redox system was studied by spin trapping technique and ESR spectrum. The free radical (CH3). NCNCH2(CH3)NCH2 (I) is one of the initial free radicals responsible for the initiation of vinyl polymerization in addition to sulfate free radical (HO3SO). The result of amino end group analysis confirmed the fact that the free radical I did initiate vinyl polymerization. The effects of the diamine concentrations on the final percentage conversion of acrylamide polymerization and on the molecular weights of PAAM were also studied. The initiation mechanism was proposed finally.

关键词

过硫酸盐和二元胺引发体系氧化还原引发ESR引发机理丙烯酰胺

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