Temperature Rising Elution Fractionation of Polypropylenes Produced by Heterogeneous Ziegler-Natta Catalysts Containing Different Internal Donors.

DOI Web Site 被引用文献1件 参考文献26件
  • Xu Junting
    Department of Polymer Science and Engineering, Zhejiang University
  • Feng Linxian
    Department of Polymer Science and Engineering, Zhejiang University
  • Yang Shilin
    Department of Polymer Science and Engineering, Zhejiang University
  • Yang Yiqing
    Shanghai Research Institute of Petrochemical Technology
  • Kong Xiangming
    Shanghai Research Institute of Petrochemical Technology

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タイトル別名
  • Temperature Rising Elution Fractionatio

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抄録

Ethyl benzoate (EB), bis(2-ethyl hexyl) sebacate (BEHS), di-n-butyl phthalate (DNBP), and bis(2-ethyl hexyl) phthalate (BEHP) were employed as internal electron donors of heterogeneous Ziegler-Natta catalysts and the obtained polypropylene (PP) samples were fractionated by temperature rising elution fractionation (TREF). The influence of different internal donors on the tacticity distributions of PPs was compared. PPs have narrower tacticity distributions with aromatic esters. Based on TREF results, different interactions of internal donor, which may depend on their structures, were proposed. The effects of internal donors on microstructure of the fractions, especially the first fractions, were examined.

収録刊行物

  • Polymer Journal

    Polymer Journal 29 (9), 713-717, 1997

    The Society of Polymer Science, Japan

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