| abstract |
Provided is a multi-component copolymer comprising conjugated diene units, non-conjugated olefin units and aromatic vinyl units, wherein: a weight-average molecular weight of chain parts, divided by the conjugated diene units and each containing one or more of the non-conjugated olefin units and/or one or more of the aromatic vinyl units, is 50,000 or more. A rubber composition comprising the multi-component copolymer, a crosslinked rubber composition, and a rubber article comprising the crosslinked rubber composition are also provided. |