| 苯乙烯与马来酸酐在碘仿存在下的共聚合反应研究 |
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| 引用本文： | 吴耀瑛,石艳,付志峰.苯乙烯与马来酸酐在碘仿存在下的共聚合反应研究[J].北京化工大学学报(自然科学版),2010,37(3):46-50. |
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| 作者姓名： | 吴耀瑛 石艳 付志峰 |
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| 作者单位： | 北京化工大学 材料科学与工程学院，北京 100029 |
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| 摘 要： | 以碘仿为链转移剂,AIBN为引发剂,进行苯乙烯和马来酸酐的共聚合研究。首先研究了苯乙烯与马来酸酐投料比(物质的量比)为1∶1的聚合体系,发现体系具有活性自由基聚合特征。然后通过"分步法"和"一锅法"研究了投料比为5∶1的聚合体系,发现体系也具有活性聚合特征,聚合得到了具有苯乙烯链段和苯乙烯与马来酸酐交替共聚链段的嵌段共聚物PS-b-Poly(St-co-MA)],产物结构通过凝胶渗透色谱(GPC)和1H-NMR进行了研究。
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| 关 键 词： | 活性自由基聚合 退化转移 碘仿 链转移剂 苯乙烯 马来酸酐 |
| 收稿时间： | 2009-05-13 |
Copolymerization of styrene and maleic anhydride in the presence of iodoform |
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| WU YaoYing,SHI Yan,FU ZhiFeng.Copolymerization of styrene and maleic anhydride in the presence of iodoform[J].Journal of Beijing University of Chemical Technology,2010,37(3):46-50. |
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| Authors: | WU YaoYing SHI Yan FU ZhiFeng |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Free radical copolymerization, of styrene and maleic anhydride (MA) has been investigated using iodoform as chain transfer agent and azobisisobutyronitrile as initiator. Copolymerization was initially carried out with a feed molar ratio of styrene and MA of 1:1. It was found that controlled radical polymerization processes were involved in the reactions. Subsequently, copolymerization of styrene and MA was studied in "one-pot" and "two step" methods, with a feed ratio of 5: 1. These copolymerization systems also showed characteristics typical of controlled free radical polymerization. Block copolymers containing both a polystyrene block and a poly(styrene-co-maleie anhydride) block, PS-b-Poly(St-co-MA)] , were obtained. The formation of block polymers was confirmed by 1H-NMR spectroscopy and gel permeation chromatography (GPC). |
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| Keywords: | living radical polymerization degenerate transfer iodoform chain transfer agent styrene maleic anhydride |
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