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| 过硫酸盐-N,N,N′,N′-四甲基乙二胺体系引发乙烯基类单体聚合动力学的研究 | |
| 引用本文： | 丘坤元,郭新秋,马静,冯新德. 过硫酸盐-N,N,N′,N′-四甲基乙二胺体系引发乙烯基类单体聚合动力学的研究[J]. 高分子学报, 1988, 0(2): 95-100 |
| 作者姓名： | 丘坤元 郭新秋 马静 冯新德 |
| 作者单位： | 北京大学化学系，北京大学化学系，北京大学化学系，北京大学化学系 1985年毕业生 |
| 摘 要： | 研究了过硫酸盐-TMEDA体系引发丙烯酰胺、丙烯腈、甲基丙烯酸甲酯水溶液聚合的规律.发现[TMEDA]/[过硫酸盐]的比值起始增大时,聚合速度R_p与转化率都增大,但达到某一值后,如>5,R_p虽然增大而转化率反而下降.聚合物的分子量则总是下降,测定了三种单体聚合的表观活化能E_α和聚合速度方程。 |
| 关 键 词： | 氧化还原引发 聚合动力学 过硫酸盐 N-四甲基乙二胺 |
| 收稿时间： | 1985-08-13 |
STUDIES ON THE KINETICS OF VINYL POLYMERIZATION INITIATED WITH PEROXYDISULFATE AND N, N, N'''', N''''- TETRAMETHYLETHYLENEDIAMINE SYSTEM |
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| QIU Kun-yuan,GUO Xin-qiu,MA Jing,FENG Xin-de. STUDIES ON THE KINETICS OF VINYL POLYMERIZATION INITIATED WITH PEROXYDISULFATE AND N, N, N'''', N''''- TETRAMETHYLETHYLENEDIAMINE SYSTEM[J]. Acta Polymerica Sinica, 1988, 0(2): 95-100 | |
| Authors: | QIU Kun-yuan GUO Xin-qiu MA Jing FENG Xin-de |
| Affiliation: | Department of Chemistry; Peking University; Beijing |
| Abstract: | Aqueous solution polymerizations of vinyl monomers, such as acrylamide (AAM), acry-lonitrile (AN) and methyl methacrylate (MMA), initiated with peroxydisulfate and N, N, N', N'-tetramethylethylenediamine (TMEDA) system have been investigated in this paper. It was found that when the ratio of [TMEDA] /[peroxydisulfate] was in the range of 0.5-2, the polymerization rate Rp and the ultimate conversion were enhanced while the ultimate conversion decreased when the ratio was 5-50, and the molecular weight of polymer always decreased. The activation energy of polymerization and polymerization rate equation were determined. |
| Keywords: | Redox initiation Kinetic study Acrylic monomer Persulfate N-tetrame- thylethy lenediamine |
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