Influence of the polymerization conditions on the impact properties of metallocene-catalyzed copolymers of ethylene and aryl-substituted norbornenes with low exo/endo ratios

Christer H. Bergström, Juhana Ruotoistenmäki, Erkki T. Aitola, Jukka V. Seppälä

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)

    Abstract

    When testing copolymers of ethylene and aryl-substituted norbornenes with the Charpy impact method it was found that under certain polymerization conditions their impact properties increased with increasing polymerization time. It was also found that this improvement on impact properties was due to increasing exo/endo ratios of the incorporated aryl-substituted norbornene comonomers. This effect is important because impact-resistant copolymers can be made using aryl-substituted norbornene comonomers with low exo/endo ratios, which are more easily synthesized and purified.

    Original languageEnglish
    Pages (from-to)1108-1117
    Number of pages10
    JournalJournal of Applied Polymer Science
    Volume77
    Issue number5
    DOIs
    Publication statusPublished - 2000
    MoE publication typeA1 Journal article-refereed

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