Co- and terpolymerization of ethylene with 1-butene and 1-decene using Cp2ZrCl2 metallocene catalyst

J. V. Seppälä*, J. Koivumäki, X. Liu

*Tämän työn vastaava kirjoittaja

    Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

    40 Sitaatiot (Scopus)

    Abstrakti

    Copolymerizations of ethylene/1‐butene, and ethylene/1‐decene and terpolymerization of ethylene/1‐butene/1‐decene were carried out in n‐heptane with various concentrations of comonomer in the feed. Cp2ZrCl2‐methylaluminoxane (MAO) was used as catalyst. When comonomers were added into the ethylene polymerization, the activity of the catalyst increased significantly and continued to do so as the concentration of the comonomer was increased. At the same time as the comonomer concentration and catalyst activity increased, the molecular weight and crystallinity of the polymers decreased. An important reason for the activity enhancement may, therefore, be that the comonomer takes part in the activation of catalytic centers, decreasing the activation energy required for monomer to insert into the active centers. Use of Cp2ZrCl2‐MAO catalyst allowed the preparation of ethylene/1‐decene copolymers containing 20 wt % of 1‐decene. © 1993 John Wiley & Sons, Inc.
    AlkuperäiskieliEnglanti
    Sivut3447-3452
    Sivumäärä6
    JulkaisuJournal of Polymer Science Part A: Polymer Chemistry
    Vuosikerta31
    Numero13
    DOI - pysyväislinkit
    TilaJulkaistu - joulukuuta 1993
    OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

    Tutkimusalat

    • copolymerization
    • metallocene catalyst
    • olefins
    • terpolymerization

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