Abstract
AbstractPropene, 1‐butene and 1‐hexene polymerization was conducted with a mixture of rac‐ and meso‐[dimethylsilylenebis((2,3,5‐tetramethyl‐cyclopentadienyl))]zirconium dichloride (Me2Si(2,3,5‐Me3Cp)2ZrCl2) (1) combined with methylaluminoxane (MAO), triethylaluminium (AlEt3)/triphenylcarbenium tetrakis(pentafluorophenyl)borate (Ph3CB(C6F5)4) (2) and triisobutylaluminium (AliBu3)/Ph3CB(C6F5)4, respectively, as co‐catalyst systems. The ratios of polymerization rates Rp(rac)/Rp(meso) were changed with the combined cocatalysts. It was found that in the case of using trialkylaluminium/2 as co‐catalyst Rp(rac)/Rp(meso) is lower than when using MAO in any kind of α‐olefin polymerization.
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