| 琥珀酸酯为内给电子体的新型MgCl2载体催化剂用于丙烯聚合 |
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| 引用本文： | 姜涛,陈伟,赵峰,刘月祥.琥珀酸酯为内给电子体的新型MgCl2载体催化剂用于丙烯聚合 [J].中国化学工程学报,2005,13(5):604-607. |
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| 作者姓名： | 姜涛 陈伟 赵峰 刘月祥 |
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| 作者单位： | [1]College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China [2]Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China [3]Department of Chemical Engineering, Daqing Petroleum Institute, Daqing 163318, China |
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| 摘 要： | A novel MgCl2-supported Ziegler-Natta catalyst containing diethyl diisopropylsuccinate donor was prepared and propylene polymerizations with the combination of such catalyst and four external donors were investigated in detail. The catalyst was compared with a commercial one with phthalate as internal donor in terms of catalytic activity, hydrogen sensitivity and stereospecificity in propylene polymerization. The molecular weight, molecular weight distribution and microstructure of the produced polypropylenes were compared also. It was found that the novel catalyst containing succinate internal donor showed higher activity and higher stereospecificity than those with phthalate as internal donor. Consequently, polypropylenes obtained by the succinate-based catalyst showed high molecular weight, high melting temperature, high isotactic index and broad molecular weight distribution than those obtained with the commercial catalyst.
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| 关 键 词： | 琥珀酸酯 内给电子体 MgCl2载体催化剂 丙烯 聚合反应 |
| 收稿时间： | 2004-12-24 |
| 修稿时间： | 2004-12-242005-03-13 |
Novel MgCl2-supported Catalysts Containing Succinate Donors for Propylene Polymerization |
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| JIANGTao,CHENWei,ZHAOFeng,LIUYuexiang.Novel MgCl2-supported Catalysts Containing Succinate Donors for Propylene Polymerization[J].Chinese Journal of Chemical Engineering,2005,13(5):604-607. |
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| Authors: | JIANGTao CHENWei ZHAOFeng LIUYuexiang |
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| Affiliation: | 1.College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China ;2. Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China ;3. Department of Chemical Engineering, Daqing Petroleum Institute, Daqing 163318, China |
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| Abstract: | A novel MgCl2-supported Ziegler-Natta catalyst containing diethyl diisopropylsuccinate donor was prepared and propylene polymerizations with the combination of such catalyst and four external donors were investigated in detail. The catalyst was compared with a commercial one with phthalate as internal donor in terms of catalytic activity, hydrogen sensitivity and stereospecificity in propylene polymerization. The molecular weight, molecular weight distribution and microstructure of the produced polypropylenes were compared also. It was found that the novel catalyst containing succinate internal donor showed higher activity and higher stereospecificity than those with phthalate as internal donor. Consequently, polypropylenes obtained by the succinate-based catalyst showed high molecular weight, high melting temperature, high isotactic index and broad molecular weight distribution than those obtained with the commercial catalyst. |
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| Keywords: | propylene polymerization Ziegler-Natta catalyst succinate phthalate donor |
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