Highly functional graft copolymer and method for preparing the same
AssigneeKorea Institute of Industrial Technology
InventorsDong Hyun Kim, Joon Chul Lee, Hyun Ki Kim, Tae Wan Kim
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Abstract
This invention relates to a highly functional graft copolymer and a method of preparing the same, and more particularly, to a highly functional graft copolymer including a main chain of a highly elastic ethylene-based terpolymer including, at a predetermined molar ratio, an ethylene unit, an α-olefin unit having 6 to 12 carbon atoms, and at least one functional unit selected from the group consisting of divinylbenzene and p-methylstyrene, and a side chain of a polar polymer for imparting functionality, and to a method of preparing the highly functional graft copolymer by performing anionic polymerization after catalytic polymerization using a metallocene catalyst.
Claims14
A graft copolymer, comprising:
- a main chain of an ethylene-based terpolymer comprising 80-95 mol % of an ethylene unit, 4-18 mol % of an α-olefin unit having 6 to 12 carbon atoms, and 0.5-2 mol % of p-methylstyrene;
- and
- a side chain of a polar polymer, wherein the polar polymer comprises at least one polar group selected from the group consisting of OH group and NH2 group, wherein a molecular weight distribution (Mw/Mn) of the graft copolymer is 1-3.5.
Dependencies are inferred from the claim text.