Patent ID: 11965051
Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
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]

R5C(O)O—OC(O)R5  [Formula B-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.