| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polyolefin copolymer by introducing a high boiling point polymerizable compound into a poly-α-olefin to improve the properties of the polymer. SOLUTION: This poly-α-olefin copolymer has a repeating unit containing an alicyclic hydrocarbon or an aromatic hydrocarbon in the side chain. The method for producing a poly-α-olefin copolymer having a repeating unit containing an alicyclic hydrocarbon or an aromatic hydrocarbon in the side chain comprises copolymerizing anα-olefin with a polymerizable compound containing an alicyclic hydrocarbon or an aromatic hydrocarbon in the side chain in the presence of a compound expressed by the formula (1), R2R3MX2 (where R2 and R3 each represents a compound having a cyclopentadienyl ring and may be linked via a bi-valent hydrocarbon; M denotes a transition metal; and X denotes a halogen atom) and an auxiliary catalyst.
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