| 丙烯丁烯共聚物的组成和等规度分布 |
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| 引用本文： | 徐群庭,封麟先.丙烯丁烯共聚物的组成和等规度分布[J].高分子学报,1997(4):508-512. |
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| 作者姓名： | 徐群庭 封麟先 |
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| 作者单位： | 浙江大学高分子科学与工程学系 |
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| 摘 要： | 丙烯丁烯共聚物的组成和等规度分布徐君庭封麟先杨士林（浙江大学高分子科学与工程学系杭州３１００２７）关键词丙烯丁烯共聚物，Ｚｉｅｇｌｅｒ Ｎａｔａ催化剂，分级用负载型Ｚｉｅｇｌｅｒ Ｎａｔａ催化剂制备的聚丙烯其等规度往往分布较宽，具有一定的分散性...
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| 关 键 词： | 丙烯丁烯共聚物，Ziegler Nata催化剂，分级 |
COMPOSITION AND TACTICITY DISTRIBUTION OF PROPYLENE BUTENE COPOLYMER |
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| XU Junting,\ FENG Linxian,\ YANG Shilin.COMPOSITION AND TACTICITY DISTRIBUTION OF PROPYLENE BUTENE COPOLYMER[J].Acta Polymerica Sinica,1997(4):508-512. |
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| Authors: | XU Junting \ FENG Linxian \ YANG Shilin |
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| Abstract: | Copolymer of propylene with a small amount of butene was prepared with supported Ziegler Natta catalyst MgCl 2/TiCl 4 AlEt 3/DPDMS and was fractionated with preparative temperature rising elution fractionation technique.The composition and tacticity distribution of copolymer were studied.It is found that the copolymer has a broad tacticity distribution and fractionation is mainly conducted according to tacticity.Compositional heterogeneity also exists to some extent.Isotacticity of fractions increases with elution temperature,but butene content shows a maximum in the fraction eluted at 70℃.With combination of previous work,this phenomenon is explained to be the result of the presence of electron donor in aspecific active site. |
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| Keywords: | Propylene butene copolymer Ziegler Natta catalyst Fractionation |
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