Living copolymerization of ethylene (E) with 4-methyl-1-pentene (4M1P) by an α-diimine Ni(II) complex and Et2AlCl as an activator is reported. The living nature of the polymerization was exploited to prepare poly(E-co-4M1P)-block-poly(1-hexene) with low polydispersity index (Mw/Mn ≈ 1.20) and qualitatively good elastomeric properties.
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Leone et al. (2012) studied this question.
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