Copolymer, method of preparing the same, and rubber composition including the same
AssigneeKorea Kumho Petrochemical Co., Ltd.
InventorsTae Hee Kim, Jae Young Ko
Life of this patent
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Abstract
An embodiment of the present specification provides a method of preparing a copolymer, which includes steps of: (a) adding a polymerization initiator to a monomer mixture including an aromatic vinyl-based monomer, a first conjugated diene-based monomer, and a farnesene monomer to initiate a reaction; and (b) adding a second conjugated diene-based monomer.
Claims10
A method of preparing a copolymer, comprising steps of:
- (a) adding a polymerization initiator to a monomer mixture including an aromatic vinyl-based monomer, a first conjugated diene-based monomer, and a farnesene monomer to initiate a reaction;
- (b) adding a second conjugated diene-based monomer;
- and
- (c) adding a compound represented by the following Chemical Formula 1 or Chemical Formula 2:
- in Chemical Formula 1 and Chemical Formula 2,
- R1 to R7 are each one of C1 to C20 saturated or unsaturated hydrocarbon chains,
- R8 is hydrogen (H) or one of C1 to C20 saturated or unsaturated hydrocarbon chains,
- R9 to R13 are each one of C1 to C20 saturated or unsaturated hydrocarbon chains,
- X is carbon (C), silicon (Si), or nitrogen (N),
- Y is oxygen (O) or nitrogen (N),
- a is an integer of 0 to 2,
- b, c, and d are each an integer of 0 to 3 and satisfy b+c+d=3,
- e, f, and g are each an integer of 0 to 2,
- n is an integer of 1 to 200, and
- m is an integer of 0 to 2.
A method of preparing a copolymer, comprising steps of:
- (a) adding a polymerization initiator to a monomer mixture including an aromatic vinyl-based monomer, a first conjugated diene-based monomer, and a farnesene monomer to initiate a reaction;
- (b) adding a second conjugated diene-based monomer;
- and
- adding a terminal-modifying compound,
- wherein the terminal-modifying compound is one selected from the group consisting of piperidine, 1-[(4-ethylphenyl)methyl]-pyrrolidine, 1-(4-vinylbenzyl)pyrrolidine, N1-(3-(dimethylamino)propyl)-N3,N3-dimethyl-N1-(4-vinylbenzyl)propane-1,3-diamine, N1-(3-(dimethylamino)propyl)-N3,N3-dimethyl-N1-(4-vinylphenethyl)propane-1,3-diamine, N1-(2-(dimethylamino)ethyl)-N2,N2-dimethyl-N1-(4-vinylbenzyl)ethane-1,2-diamine, N1-(3-(diethylamino)propyl)-N3,N3-diethyl-N1-(4-vinylbenzyl)propane-1,3-diamine, triethoxysilylpropyldiethylamine, 3-glycidoxypropyldimethyldimethoxysilane, dimethyldichlorosilane, trimethylchlorosilane, methyldichlorosilane, methyltrichlorosilane, phenyltrichlorosilane, vinyltrichlorosilane, and a combination of two or more thereof.
A copolymer comprising an aromatic vinyl-based monomer, a conjugated diene-based monomer, and a farnesene monomer and having an aromatic vinyl-based block content of less than 1 wt %, wherein at least one end of the copolymer is modified with a compound represented by the following Chemical Formula 1 or Chemical Formula 2:
- in Chemical Formula 1 and Chemical Formula 2,
- R1 to R7 are each one of C1 to C20 saturated or unsaturated hydrocarbon chains,
- R8 is hydrogen (H) or one of C1 to C20 saturated or unsaturated hydrocarbon chains,
- R9 to R13 are each one of C1 to C20 saturated or unsaturated hydrocarbon chains,
- X is carbon (C), silicon (Si), or nitrogen (N),
- Y is oxygen (O) or nitrogen (N),
- a is an integer of 0 to 2,
- b, c, and d are each an integer of 0 to 3 and satisfy b+c+d=3,
- e, f, and g are each an integer of 0 to 2,
- n is an integer of 1 to 200, and
- m is an integer of 0 to 2.
A copolymer comprising an aromatic vinyl-based monomer, a conjugated diene-based monomer, and a farnesene monomer and having an aromatic vinyl-based block content of less than 1 wt %, wherein at least one end of the copolymer is modified with a terminal-modifying compound, and
- the terminal-modifying compound is one selected from the group consisting of piperidine, 1-[(4-ethylphenyl)methyl]-pyrrolidine, 1-(4-vinylbenzyl)pyrrolidine, N1-(3-(dimethylamino)propyl)-N3,N3-dimethyl-N1-(4-vinylbenzyl)propane-1,3-diamine, N1-(3-(dimethylamino)propyl)-N3,N3-dimethyl-N1-(4-vinylphenethyl)propane-1,3-diamine, N1-(2-(dimethylamino)ethyl)-N2,N2-dimethyl-N1-(4-vinylbenzyl)ethane-1,2-diamine, N1-(3-(diethylamino)propyl)-N3,N3-diethyl-N1-(4-vinylbenzyl)propane-1,3-diamine, triethoxysilylpropyldiethylamine, 3-glycidoxypropyldimethyldimethoxysilane, dimethyldichlorosilane, trimethylchlorosilane, methyldichlorosilane, methyltrichlorosilane, phenyltrichlorosilane, vinyltrichlorosilane, and a combination of two or more thereof.
Dependencies are inferred from the claim text.