CPC C08F 297/086 (2013.01) [C08F 2/06 (2013.01); C08F 2/38 (2013.01); C08F 4/34 (2013.01); C08F 4/50 (2013.01); C08F 110/06 (2013.01); C08F 210/16 (2013.01); C08F 2410/01 (2013.01)] | 6 Claims |
1. A method of preparing a polyolefin block copolymer represented by Formula 1, the method comprising:
the first step in which a compound represented by Formula A is prepared by coordination polymerization of an olefin monomer using a transition metal catalyst in the presence of an organozinc compound represented by Formula A-1; and
the second step in which a compound represented by Formula B-1 is added to and reacted with the compound represented by Formula A
(R1)2Zn [Formula A-1]
wherein Formula A-1, Formula A, Formula B-1 and Formula 1, R1 and R5 are each independently a C1 to C20 hydrocarbyl group; R2 to R4 are each independently one selected from among hydrogen, a methyl group, an ethyl group, a butyl group, and a hexyl group; p and 1-p are mole fractions of sub-repeat units constituting a repeat unit b, respectively, p being greater than 0 and less than 1; a ranges from 50 to 5,000 on average or is 0; and b ranges from 50 to 5,000 on average.
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