Effects of the Structure of External Alkoxy Silane Donor in High Activity Ziegler-Natta Catalyst on the Microstructure of Polypropylene

Mika Härkönen, Jukka V. Seppälä, Taito Väänänen

    Research output: Contribution to journalArticleScientificpeer-review

    17 Citations (Scopus)

    Abstract

    Correlations were sought between the structure of external alkoxy silane donors and the microstructure of the obtained polymer chain. Propylene was polymerized in liquid monomer with a heterogeneous high activity Ziegler-Natta catalyst. Fifteen different alkoxy silanes of structure R nSi(OR′) 4-n, where n=1-3, R = Ph or alkyl and R′ = C 1-3 alkyl, were used as external donors. Polymers were fractionated by boiling heptane extraction. Microstructures of the polymers were studied by means of 13C NMR.

    Original languageEnglish
    Pages (from-to)87-105
    Number of pages19
    JournalStudies in Surface Science and Catalysis
    Volume56
    Issue numberC
    DOIs
    Publication statusPublished - 1990
    MoE publication typeA1 Journal article-refereed

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