| Effects of Al(i-Bu)_3 on Propylene Polymerization and Copolymerization by rac-Me_2Si(Ind)_2ZrCl_2/MAO |
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| 作者姓名： | Zhi Qiang FAN Yong Hui ZHANG Qi WANG Lin Xian FENG |
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| 作者单位： | Department of Polymer Science and Engineering，Zhejiang University，HangZhou 310027 |
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| 摘 要： | Propylenepolymerizationbystereorigidansa-Inetallocene/meUlyI-alulhinoxane(MAO)havebeenreportedbymanygroupsinrecentyears."'PolypropylenefromsuchSystemhasthechacteristicsofnarrowmolecularweightandcompositiondistributions,whichcannotbeproducedbytheconditionalheterogeneousZiegler-Nattacatalysts.Inarecentwork,M.C.SacchietaLrepoftedUleeffectsofaddingAl(i-C4Hg)3ahA)totherac-Et(Ind)ZZrCI,/MAOcatalyzedpropylene/1-hexenecopolymerizationSystem.'ItwasfoundthatbyaddingcertainamountsofTBAhlepoly…
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Effects of Al(i-Bu)_3 on Propylene Polymerization and Copolymerization by rac-Me_2Si(Ind)_2ZrCl_2/MAO |
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| Zhi Qiang FAN, Yong Hui ZHANG, Qi WANG, Lin Xian FENG.Effects of Al(i-Bu)_3 on Propylene Polymerization and Copolymerization by rac-Me_2Si(Ind)_2ZrCl_2/MAO[J].Chinese Chemical Letters,1998(1). |
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| Authors: | Zhi Qiang FAN Yong Hui ZHANG Qi WANG Lin Xian FENG |
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| Abstract: | The effects of adding Al(i-C_4H_9)_3 (TBA) to rac-Me2Si(Ind)2ZrCl2/ MAO catalyzed propylene-1-octene copolymerization were studied. At TBA /MAO (Al/AI mole ratio) of about 0.6, the polymerization activity was found to be much higher than the system without TBA. Increases of polymer molecular weight and 1-octene content from addition of TBA were also observed. |
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| Keywords: | propylene-1-octene polymerization metallocene catalyst |
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