• evaluation of catalytic activity in ethylene polymerization and ethylene/10-undecen-1-ol copolymerization of new orthopalladated complexes derived from tridentade ligands [c,n,s]

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1138
    • تعداد پرسش و پاسخ ها: 0
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     this paper describes catalytic applications of new orthopalladated complex/mao systems in polymerization of ethylene and copolymerization of ethylene/10-undecen-1-ol. orthopalladated complexes15 were synthesized from tridentate ligands [c, n, s], with a general formula of pdlx, where l = [ph2nnc(ch3)csrsr] and r = ch3, ch2ch2 and x = cl, ccph, ccsi(ch3)3. these catalytic systems show high catalytic activity in ethylene polymerization, especially when the reactions were carried out at a temperature of 80 °c. the polyethylene obtained is linear with narrow molecular weight distributions, indicating that pd/al systems behave as single site catalysts. the results obtained in copolymerization of ethylene/10-undecen-1-ol indicate that orthopalladated complex/mao system produces copolymers with molecular weight distributions unimodal and close to 2, indicating that the pd/al systems also act as single site catalysts.
     

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