Abstract—

Ethylene-propylene-5-ethylidene-2-norbornene terpolymerization is studied in a liquid propylene medium using catalysts based on metallocenes (MCs) of C₂- and C₅-symmetry, differing in the nature of bridges and ligands and activated by MAO. It is shown that the investigated MCs of C₂-symmetry do not ensure the synthesis of terpolymers combining a high molecular weight (MW) and good diene incorporation. In the presence of a MC of C_s-symmetry Ph₂C(CpFlu)ZrCl₂, terpolymers with an MW of 120 000 to 160 000 and a diene content of 2.0 to 5.3 wt % are obtained with a high level of activity. New heterophase compositions based on isotactic PP and ethylene-propylene-diene terpolymers, which have a good balance between strength and elasticity, are synthesized.

中文翻译：

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茂金属催化体系下乙烯-丙烯-二烯三元共聚物与聚丙烯的异相组成

摘要—

乙烯-丙烯-5-亚乙基-2-降冰片烯三元共聚中使用基于金属茂的（MCS）的催化剂的液体丙烯介质研究Ç ₂ -和ç ₅ -symmetry，在桥和配体的性质不同和由MAO活化。结果表明，所研究的C ₂对称MCs不能确保合成高分子量（MW）和良好的二烯结合的三元共聚物。在C _s对称MC的存在下Ph ₂ C（CpFlu）ZrCl ₂得到具有高活性水平的MW为120 000至160 000且二烯含量为2.0至5.3 wt％的三元共聚物。合成了基于等规聚丙烯和乙烯-丙烯-二烯三元共聚物的新型异相组合物，它们在强度和弹性之间具有良好的平衡。