| Ansa-茂锆催化剂对乙烯/1-辛烯共聚合研究 |
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| 引用本文： | 姚晖,肖士镜,郭建华,钱长涛.Ansa-茂锆催化剂对乙烯/1-辛烯共聚合研究[J].高分子学报,1998(5):612-615. |
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| 作者姓名： | 姚晖 肖士镜 郭建华 钱长涛 |
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| 作者单位： | 1. 中国科学院化学研究所,北京,100080
2. 中国科学院上海有机化学研究所,上海,200032 |
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| 摘 要： | 乙烯与α 烯烃共聚合可制得线性低密度聚乙烯等重要塑料产品．用茂金属催化剂与甲基铝氧烷（ＭＡＯ）助催化剂合成的乙烯／α 烯烃共聚物具有共单体分布均匀，分子量分布窄等特点，其性能比传统的Ｚｉｅｇｌｅｒ Ｎａｔａ催化剂体系所得共聚物优越．茂金属化合物的结构...
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| 关 键 词： | 共聚合，金属茂，甲基铝氧烷，乙烯，1 辛烯 |
COPOLYMERIZATION OF ETHYLENE/1-OCTENE WITH ANSA-ZIRCONOCENE CATALYSTS |
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| YAO Hui,XIAO Shijing,GUO Jianhua,QIAN Changtao.COPOLYMERIZATION OF ETHYLENE/1-OCTENE WITH ANSA-ZIRCONOCENE CATALYSTS[J].Acta Polymerica Sinica,1998(5):612-615. |
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| Authors: | YAO Hui XIAO Shijing GUO Jianhua QIAN Changtao |
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| Abstract: | Copolymerization of ethylene/1 octene with three ansa zirconocene/MAO catalyst systems were investigated. The polymerization activity is dependent upon the influence of electronic effects. It decreases in the following order: C 6H 4(CH 2) 2Cp 2ZrCl 2> C 5H 3N(CH 2) 2Cp 2ZrCl 2 > CH 3N(CH 2) 2ZrCl 2. The composition and sequence distribution of copolymer were calculated from 13 C NMR spectra. It was found that the activityes of three ansacatalysts were lower than Et(Ind) 2ZrCl 2 under the same 1 octeone concentration. And their copolymer had lower 1 octene incorporation than that of Et(Ind) 2ZrCl 2. Other properties such as molecular wieght, melting point of copolymer were compared. |
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| Keywords: | Copolymerization Zirconocene Methylaluminoxane Ethylene 1 octene |
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