AbstractEthylene/dodecene‐1 and ethylene/butene‐1/dodecene‐1 copolymers were prepared and their polymerization reaction in heptane slurry was studied. The Ziegler–Natta catalyst was aluminium‐activated TiCl3, and the cocatalyst was triethylaluminium. The dodecene‐1 contents in the ethylene/dodecene‐1 copolymers were less than 3 wt . The dodecene‐1 contents in terpolymers of ethylene, butene‐1, and dodecene‐1 ranged up to 10 wt . The dependence of basic properties on composition of terpolyme
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