| 金属茂均相催化剂用于乙烯聚合的研究 |
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| 引用本文： | 姚晖 肖士镜. 金属茂均相催化剂用于乙烯聚合的研究[J]. 合成树脂及塑料, 1995, 12(4): 7-9,20 |
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| 作者姓名： | 姚晖 肖士镜 |
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| 作者单位： | 中国科学院化学研究所，中国科学院化学研究所 北京 100080，北京 100080 |
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| 摘 要： | 研究金属茂均相催化剂中过渡金属的性质对乙烯聚合的影响。以丁烯基取代的二茂二氯化锆（ＣｐＢｕ）２ＺｒＣｌ２和丁烯基取代的二茂二氯化锆（ＣｐＢｕ）２ＨｆＣｌ２与甲基铝氧烷组成的均相催化剂体系，对乙烯聚合进行了较详细的比较研究。
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| 关 键 词： | 乙烯 聚合 金属茂 均相催化剂 聚乙烯 |
Study on Polymerization of ethylene with metallocene Homogeneous Catalysts |
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| Yao Hui and Xiao ShijingInstitute of Chemistry Academia Sinica). Study on Polymerization of ethylene with metallocene Homogeneous Catalysts[J]. China Synthetic Resin and Plastics, 1995, 12(4): 7-9,20 |
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| Authors: | Yao Hui and Xiao ShijingInstitute of Chemistry Academia Sinica) |
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| Affiliation: | Yao Hui and Xiao ShijingInstitute of Chemistry Academia Sinica |
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| Abstract: | Ethylene was homopolymerized with two homogeneous catalysts (CpBu)2ZrCl2 and (CpBu)2HfCl2 (Bu = CH2CH2CH = CH2) using methylaluminoxane (MAO) as cocatalyst. The influences of the polymerization conditions (temperature, [Al]/[M](M = Zr,Hf)) on the activity and properties of the polymers were investigated. It was found that under the same polymerization conditions, the activity of Hafnocere Catalyst is lower than that of Zirconocene Catalyst; but the molecular weight of polymer produced with Hafnocene is higher than that produced with Zirconocene. The rate curve of ethylene polymerization is decreasing type for (CpBu)2ZrCl2 Catalyst. (CpBu)2HfCl2 catalysts rate curve has a induction period. |
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| Keywords: | ethylene polymerization metallocene homogeneous catalyst |
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