Patent
US 10,835,886BLOCK COPOLYMER, AND METHOD FOR PREPARING GRAPHENE USING THE SAME
Mi Jin Lee
US
Copyright © 2026 Matter42. All rights reserved.
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US 10,835,886Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(b)) 10 analysis of PtBA-b-PS block copolymer prepared in Example 1 of the present invention.
FIG. 2 shows the results of ' H-NMR analysis of PAA-b-PS block copolymer before purification prepared in Example 1 of the present invention.
FIG. 3 shows the results of ' H-NMR analysis of PAA-b-PS block 15 copolymer after purification prepared in Example 1 of the present invention.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
FIG. 5 shows a Raman spectrum of the dispersion of graphene 20 prepared in Example 1 of the present invention.
FIG. 6 shows the sedimentation velocity of the dispersion of graphene prepared in Example 1 of the present invention.
FIG. 7b) of PEO- C TA prepared in one embodiment of the present invention. 25
FIG. 8a) and GP C analysis results (
FIG. 9 shows ' H-NMR results of PEO-b-PVN prepared in one embodiment of the present invention.
FIG. 10 shows SEM images of the dispersions of graphene prepared 30 in Example 3 (
FIG. 11 shows SEM images of the dispersion of graphenes prepared in Example 3 (
FIG. 12 shows a TEM image of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant.
FIG. 13 shows Raman spectra of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant. 5
FIG. 14 shows the graphene particle size a cc ording to the number of high-pressure homogenization processes of the dispersion of graphene prepared by using …
FIG. 30 11(a) and (b) show those of Experimental Example 7, and
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A block copolymer comprising a repeating unit represented by the fol l owin g Chemical Formula 1 and a repeating uni t represented by the following Chemical Formula [Chemical Formula 1] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.1.svg 1.02 1.84 Black and white in Chemical F ormula 1, X is a bond or oxygen, Ri and R₂ are each independently hydrogen; C -4 al kyl; carboxy group; or C 6-20 aryl substitut e d with a carboxy group or a su l fonic acid group, provided that when X is a bond, R 2 is not hydrogen and C 1 4 a l kyl, n is an integer of 1 to 10,000, and n' is an integer of 0 to.), [Chemical Fo rm ula 2] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.2.svg 1.02 1.38 Black and white in Chemical Formula 2, R 3 and R₄ are each independently hydrogen; GC-2o aryl; -C OO -(C 6-20 ary l); or -C 00-(C 4 a lkylene)-(C 6-20 aryl), and m is an integer of I to 10,000. Currently amended
The block copoly m er according to claim 1, wherein the block copolymer is represented by the following Chemical Formula 3: [Chemical Fo rm ula 3] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.3.svg 1.03 3.1 Black and white in Chemical F ormula 3, X, R 1, R 2, R 3, R 4, n, and m are the same as defined in Chemical Formulas 1 and 2 R}--. R 4 4 6-6. Currently amended
The block copolymer according to claim 1, wherein the ratio ofn: m is 2-- 10: 1. Original
The block copolymer according to claim 1, wherein the block copolymer includes a repeating unit represented by the fo llow ing Chemical Formula 4 and a re p eating unit represented by the fol low ing Chemical Formula 5: [Chemical Fo nr ula 4] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.4.svg 0.32 1.26 Black and white in Chemical Formula 4, X' is C J 3 alk yl ene., and n is an integer of 1 to 10, 000, [Chemi cal Formula 5] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.5.svg 0.86 1.1 Black and white in Chemical Formula 5, R 4 is C-2 o aryl, or -COO-(C 1 4 a lkyl ene)-(C₆ -2o aryl), and m is an integer of I to 10,000. Currently amended
Canceled
Currently amended
A block copolymer is represented by th e following Chemical Formula 6: [Chemical Formula 6] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.6.svg 1.25 4.34 Black and white in Chemical F ormula 6, R ' i s C I-3 alkoxy, X' is C 1-3 alkylene, n is an integer of 1 to 10,000, R 4 is C₆ -20 aryl, or -COO-(C 1-4 alkylene)-(C 6-2o aryl), and m is an integer of 1 to 10, 000 ' 4. Currently amended
The block copolymer according to claim 11, wherein X' is ethylene (-CH 2 -CH 2 -). New
The block copoly m er according to claim 11, wherein R 4 is phenyl, naphthyl, or -C OOCH 2 -(p y ren y l). New
The block copoly m er according to claim 11, wherein the ratio of n: m is 2-10:1. New
(previously presented, withdra w n) A method for preparing graphene, comprising the step of passing a fe ed solution including graphite through a high-pressure homogenizer including an inlet, an outlet, and a micro-channel that connects between the inlet and the outlet and has a diameter in a micrometer scale, wherein the feed solution includes the block copo ly mer of claim
The method for preparing graphene according to claim 12, wherein graphite in the feed solution is exfoliated while passing through a micro-channel under app licati on of a shear force, thereby preparing a graphene. Withdrawn
The method for preparing graphene according to claim 12, wherein the micro-channel has a diameter of 10 to 800 pm. Withdrawn
The method for preparing graphene according to claim 12, wherein the feed solution is introduced in the inlet of the high-pressure homogenizer under app lica tion o f a pressure of 100 to 3,000 bar and passed through the micro-channe l. Withdrawn
The method for preparing graphene according to claim 12, wherein the sol vent of the f ee d solution is one or more s e lected from the group consisting of water, NMP (N-methyl-2-pyrrolidone), acetone, DMF (N,N-dimethylformamide), DMSO (dimethyl sulfoxide), CHP (cyclohexyl-pyrrolidinone), N₁₂P (N-dodecyl-pyrrolidone), benzyl b e nzoate, N₈P (N-octyl-pyrrolidone), DMEU (dimethyl-imidazolidinone), cyclohe x anone, DMA (dimethylacetamide), NMF (N-methyl fo rm amide), bromobenzene, chloroform, chlorobenzene, ben zonitrile, quinoline, benzyl ether, ethanol, isopropyl alcohol, met ha nol, butanol, 2- ethoxy et hanol, 2-butoxyethanol, 2-methoxypropanol, THF(tetrahydrofuran), ethylene glycol, pyri dine, N- vinyl pyrro li done, methyl ethyl ketone (butanone), al pha-te rpi ineo l, formic acid, ethyl acetate and acrylonitrile. Withdrawn
The method for preparing graphene according to claim 12, wherein the step of passing the material recovered in the inlet through a micro-channel is additionally repeated once to 9 ti m es. Withdrawn
Materials described outside the worked examples.
block copolymer (Chemical Formula 1 + Chemical Formula 2)
block copolymer (Chemical Formula 3)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 100–3000 bar | — |
Table 1
14 and Table 1 below.
p. 18
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US 10,835,886Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(b)) 10 analysis of PtBA-b-PS block copolymer prepared in Example 1 of the present invention.
FIG. 2 shows the results of ' H-NMR analysis of PAA-b-PS block copolymer before purification prepared in Example 1 of the present invention.
FIG. 3 shows the results of ' H-NMR analysis of PAA-b-PS block 15 copolymer after purification prepared in Example 1 of the present invention.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
FIG. 5 shows a Raman spectrum of the dispersion of graphene 20 prepared in Example 1 of the present invention.
FIG. 6 shows the sedimentation velocity of the dispersion of graphene prepared in Example 1 of the present invention.
FIG. 7b) of PEO- C TA prepared in one embodiment of the present invention. 25
FIG. 8a) and GP C analysis results (
FIG. 9 shows ' H-NMR results of PEO-b-PVN prepared in one embodiment of the present invention.
FIG. 10 shows SEM images of the dispersions of graphene prepared 30 in Example 3 (
FIG. 11 shows SEM images of the dispersion of graphenes prepared in Example 3 (
FIG. 12 shows a TEM image of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant.
FIG. 13 shows Raman spectra of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant. 5
FIG. 14 shows the graphene particle size a cc ording to the number of high-pressure homogenization processes of the dispersion of graphene prepared by using …
FIG. 30 11(a) and (b) show those of Experimental Example 7, and
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A block copolymer comprising a repeating unit represented by the fol l owin g Chemical Formula 1 and a repeating uni t represented by the following Chemical Formula [Chemical Formula 1] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.1.svg 1.02 1.84 Black and white in Chemical F ormula 1, X is a bond or oxygen, Ri and R₂ are each independently hydrogen; C -4 al kyl; carboxy group; or C 6-20 aryl substitut e d with a carboxy group or a su l fonic acid group, provided that when X is a bond, R 2 is not hydrogen and C 1 4 a l kyl, n is an integer of 1 to 10,000, and n' is an integer of 0 to.), [Chemical Fo rm ula 2] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.2.svg 1.02 1.38 Black and white in Chemical Formula 2, R 3 and R₄ are each independently hydrogen; GC-2o aryl; -C OO -(C 6-20 ary l); or -C 00-(C 4 a lkylene)-(C 6-20 aryl), and m is an integer of I to 10,000. Currently amended
The block copoly m er according to claim 1, wherein the block copolymer is represented by the following Chemical Formula 3: [Chemical Fo rm ula 3] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.3.svg 1.03 3.1 Black and white in Chemical F ormula 3, X, R 1, R 2, R 3, R 4, n, and m are the same as defined in Chemical Formulas 1 and 2 R}--. R 4 4 6-6. Currently amended
The block copolymer according to claim 1, wherein the ratio ofn: m is 2-- 10: 1. Original
The block copolymer according to claim 1, wherein the block copolymer includes a repeating unit represented by the fo llow ing Chemical Formula 4 and a re p eating unit represented by the fol low ing Chemical Formula 5: [Chemical Fo nr ula 4] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.4.svg 0.32 1.26 Black and white in Chemical Formula 4, X' is C J 3 alk yl ene., and n is an integer of 1 to 10, 000, [Chemi cal Formula 5] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.5.svg 0.86 1.1 Black and white in Chemical Formula 5, R 4 is C-2 o aryl, or -COO-(C 1 4 a lkyl ene)-(C₆ -2o aryl), and m is an integer of I to 10,000. Currently amended
Canceled
Currently amended
A block copolymer is represented by th e following Chemical Formula 6: [Chemical Formula 6] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.6.svg 1.25 4.34 Black and white in Chemical F ormula 6, R ' i s C I-3 alkoxy, X' is C 1-3 alkylene, n is an integer of 1 to 10,000, R 4 is C₆ -20 aryl, or -COO-(C 1-4 alkylene)-(C 6-2o aryl), and m is an integer of 1 to 10, 000 ' 4. Currently amended
The block copolymer according to claim 11, wherein X' is ethylene (-CH 2 -CH 2 -). New
The block copoly m er according to claim 11, wherein R 4 is phenyl, naphthyl, or -C OOCH 2 -(p y ren y l). New
The block copoly m er according to claim 11, wherein the ratio of n: m is 2-10:1. New
(previously presented, withdra w n) A method for preparing graphene, comprising the step of passing a fe ed solution including graphite through a high-pressure homogenizer including an inlet, an outlet, and a micro-channel that connects between the inlet and the outlet and has a diameter in a micrometer scale, wherein the feed solution includes the block copo ly mer of claim
The method for preparing graphene according to claim 12, wherein graphite in the feed solution is exfoliated while passing through a micro-channel under app licati on of a shear force, thereby preparing a graphene. Withdrawn
The method for preparing graphene according to claim 12, wherein the micro-channel has a diameter of 10 to 800 pm. Withdrawn
The method for preparing graphene according to claim 12, wherein the feed solution is introduced in the inlet of the high-pressure homogenizer under app lica tion o f a pressure of 100 to 3,000 bar and passed through the micro-channe l. Withdrawn
The method for preparing graphene according to claim 12, wherein the sol vent of the f ee d solution is one or more s e lected from the group consisting of water, NMP (N-methyl-2-pyrrolidone), acetone, DMF (N,N-dimethylformamide), DMSO (dimethyl sulfoxide), CHP (cyclohexyl-pyrrolidinone), N₁₂P (N-dodecyl-pyrrolidone), benzyl b e nzoate, N₈P (N-octyl-pyrrolidone), DMEU (dimethyl-imidazolidinone), cyclohe x anone, DMA (dimethylacetamide), NMF (N-methyl fo rm amide), bromobenzene, chloroform, chlorobenzene, ben zonitrile, quinoline, benzyl ether, ethanol, isopropyl alcohol, met ha nol, butanol, 2- ethoxy et hanol, 2-butoxyethanol, 2-methoxypropanol, THF(tetrahydrofuran), ethylene glycol, pyri dine, N- vinyl pyrro li done, methyl ethyl ketone (butanone), al pha-te rpi ineo l, formic acid, ethyl acetate and acrylonitrile. Withdrawn
The method for preparing graphene according to claim 12, wherein the step of passing the material recovered in the inlet through a micro-channel is additionally repeated once to 9 ti m es. Withdrawn
Materials described outside the worked examples.
block copolymer (Chemical Formula 1 + Chemical Formula 2)
block copolymer (Chemical Formula 3)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 100–3000 bar | — |
Table 1
14 and Table 1 below.
p. 18
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US 10,835,886Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(b)) 10 analysis of PtBA-b-PS block copolymer prepared in Example 1 of the present invention.
FIG. 2 shows the results of ' H-NMR analysis of PAA-b-PS block copolymer before purification prepared in Example 1 of the present invention.
FIG. 3 shows the results of ' H-NMR analysis of PAA-b-PS block 15 copolymer after purification prepared in Example 1 of the present invention.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
FIG. 5 shows a Raman spectrum of the dispersion of graphene 20 prepared in Example 1 of the present invention.
FIG. 6 shows the sedimentation velocity of the dispersion of graphene prepared in Example 1 of the present invention.
FIG. 7b) of PEO- C TA prepared in one embodiment of the present invention. 25
FIG. 8a) and GP C analysis results (
FIG. 9 shows ' H-NMR results of PEO-b-PVN prepared in one embodiment of the present invention.
FIG. 10 shows SEM images of the dispersions of graphene prepared 30 in Example 3 (
FIG. 11 shows SEM images of the dispersion of graphenes prepared in Example 3 (
FIG. 12 shows a TEM image of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant.
FIG. 13 shows Raman spectra of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant. 5
FIG. 14 shows the graphene particle size a cc ording to the number of high-pressure homogenization processes of the dispersion of graphene prepared by using …
FIG. 30 11(a) and (b) show those of Experimental Example 7, and
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A block copolymer comprising a repeating unit represented by the fol l owin g Chemical Formula 1 and a repeating uni t represented by the following Chemical Formula [Chemical Formula 1] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.1.svg 1.02 1.84 Black and white in Chemical F ormula 1, X is a bond or oxygen, Ri and R₂ are each independently hydrogen; C -4 al kyl; carboxy group; or C 6-20 aryl substitut e d with a carboxy group or a su l fonic acid group, provided that when X is a bond, R 2 is not hydrogen and C 1 4 a l kyl, n is an integer of 1 to 10,000, and n' is an integer of 0 to.), [Chemical Fo rm ula 2] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.2.svg 1.02 1.38 Black and white in Chemical Formula 2, R 3 and R₄ are each independently hydrogen; GC-2o aryl; -C OO -(C 6-20 ary l); or -C 00-(C 4 a lkylene)-(C 6-20 aryl), and m is an integer of I to 10,000. Currently amended
The block copoly m er according to claim 1, wherein the block copolymer is represented by the following Chemical Formula 3: [Chemical Fo rm ula 3] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.3.svg 1.03 3.1 Black and white in Chemical F ormula 3, X, R 1, R 2, R 3, R 4, n, and m are the same as defined in Chemical Formulas 1 and 2 R}--. R 4 4 6-6. Currently amended
The block copolymer according to claim 1, wherein the ratio ofn: m is 2-- 10: 1. Original
The block copolymer according to claim 1, wherein the block copolymer includes a repeating unit represented by the fo llow ing Chemical Formula 4 and a re p eating unit represented by the fol low ing Chemical Formula 5: [Chemical Fo nr ula 4] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.4.svg 0.32 1.26 Black and white in Chemical Formula 4, X' is C J 3 alk yl ene., and n is an integer of 1 to 10, 000, [Chemi cal Formula 5] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.5.svg 0.86 1.1 Black and white in Chemical Formula 5, R 4 is C-2 o aryl, or -COO-(C 1 4 a lkyl ene)-(C₆ -2o aryl), and m is an integer of I to 10,000. Currently amended
Canceled
Currently amended
A block copolymer is represented by th e following Chemical Formula 6: [Chemical Formula 6] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.6.svg 1.25 4.34 Black and white in Chemical F ormula 6, R ' i s C I-3 alkoxy, X' is C 1-3 alkylene, n is an integer of 1 to 10,000, R 4 is C₆ -20 aryl, or -COO-(C 1-4 alkylene)-(C 6-2o aryl), and m is an integer of 1 to 10, 000 ' 4. Currently amended
The block copolymer according to claim 11, wherein X' is ethylene (-CH 2 -CH 2 -). New
The block copoly m er according to claim 11, wherein R 4 is phenyl, naphthyl, or -C OOCH 2 -(p y ren y l). New
The block copoly m er according to claim 11, wherein the ratio of n: m is 2-10:1. New
(previously presented, withdra w n) A method for preparing graphene, comprising the step of passing a fe ed solution including graphite through a high-pressure homogenizer including an inlet, an outlet, and a micro-channel that connects between the inlet and the outlet and has a diameter in a micrometer scale, wherein the feed solution includes the block copo ly mer of claim
The method for preparing graphene according to claim 12, wherein graphite in the feed solution is exfoliated while passing through a micro-channel under app licati on of a shear force, thereby preparing a graphene. Withdrawn
The method for preparing graphene according to claim 12, wherein the micro-channel has a diameter of 10 to 800 pm. Withdrawn
The method for preparing graphene according to claim 12, wherein the feed solution is introduced in the inlet of the high-pressure homogenizer under app lica tion o f a pressure of 100 to 3,000 bar and passed through the micro-channe l. Withdrawn
The method for preparing graphene according to claim 12, wherein the sol vent of the f ee d solution is one or more s e lected from the group consisting of water, NMP (N-methyl-2-pyrrolidone), acetone, DMF (N,N-dimethylformamide), DMSO (dimethyl sulfoxide), CHP (cyclohexyl-pyrrolidinone), N₁₂P (N-dodecyl-pyrrolidone), benzyl b e nzoate, N₈P (N-octyl-pyrrolidone), DMEU (dimethyl-imidazolidinone), cyclohe x anone, DMA (dimethylacetamide), NMF (N-methyl fo rm amide), bromobenzene, chloroform, chlorobenzene, ben zonitrile, quinoline, benzyl ether, ethanol, isopropyl alcohol, met ha nol, butanol, 2- ethoxy et hanol, 2-butoxyethanol, 2-methoxypropanol, THF(tetrahydrofuran), ethylene glycol, pyri dine, N- vinyl pyrro li done, methyl ethyl ketone (butanone), al pha-te rpi ineo l, formic acid, ethyl acetate and acrylonitrile. Withdrawn
The method for preparing graphene according to claim 12, wherein the step of passing the material recovered in the inlet through a micro-channel is additionally repeated once to 9 ti m es. Withdrawn
Materials described outside the worked examples.
block copolymer (Chemical Formula 1 + Chemical Formula 2)
block copolymer (Chemical Formula 3)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 100–3000 bar | — |
Table 1
14 and Table 1 below.
p. 18
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
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US 10,835,886Patent drawings and their descriptions. Click a drawing to enlarge it.
FIG. 1(b)) 10 analysis of PtBA-b-PS block copolymer prepared in Example 1 of the present invention.
FIG. 2 shows the results of ' H-NMR analysis of PAA-b-PS block copolymer before purification prepared in Example 1 of the present invention.
FIG. 3 shows the results of ' H-NMR analysis of PAA-b-PS block 15 copolymer after purification prepared in Example 1 of the present invention.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
FIG. 5 shows a Raman spectrum of the dispersion of graphene 20 prepared in Example 1 of the present invention.
FIG. 6 shows the sedimentation velocity of the dispersion of graphene prepared in Example 1 of the present invention.
FIG. 7b) of PEO- C TA prepared in one embodiment of the present invention. 25
FIG. 8a) and GP C analysis results (
FIG. 9 shows ' H-NMR results of PEO-b-PVN prepared in one embodiment of the present invention.
FIG. 10 shows SEM images of the dispersions of graphene prepared 30 in Example 3 (
FIG. 11 shows SEM images of the dispersion of graphenes prepared in Example 3 (
FIG. 12 shows a TEM image of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant.
FIG. 13 shows Raman spectra of the dispersion of graphene prepared by using the block copolymer of the present invention as a dispersant. 5
FIG. 14 shows the graphene particle size a cc ording to the number of high-pressure homogenization processes of the dispersion of graphene prepared by using …
FIG. 30 11(a) and (b) show those of Experimental Example 7, and
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
A block copolymer comprising a repeating unit represented by the fol l owin g Chemical Formula 1 and a repeating uni t represented by the following Chemical Formula [Chemical Formula 1] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.1.svg 1.02 1.84 Black and white in Chemical F ormula 1, X is a bond or oxygen, Ri and R₂ are each independently hydrogen; C -4 al kyl; carboxy group; or C 6-20 aryl substitut e d with a carboxy group or a su l fonic acid group, provided that when X is a bond, R 2 is not hydrogen and C 1 4 a l kyl, n is an integer of 1 to 10,000, and n' is an integer of 0 to.), [Chemical Fo rm ula 2] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.2.svg 1.02 1.38 Black and white in Chemical Formula 2, R 3 and R₄ are each independently hydrogen; GC-2o aryl; -C OO -(C 6-20 ary l); or -C 00-(C 4 a lkylene)-(C 6-20 aryl), and m is an integer of I to 10,000. Currently amended
The block copoly m er according to claim 1, wherein the block copolymer is represented by the following Chemical Formula 3: [Chemical Fo rm ula 3] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.3.svg 1.03 3.1 Black and white in Chemical F ormula 3, X, R 1, R 2, R 3, R 4, n, and m are the same as defined in Chemical Formulas 1 and 2 R}--. R 4 4 6-6. Currently amended
The block copolymer according to claim 1, wherein the ratio ofn: m is 2-- 10: 1. Original
The block copolymer according to claim 1, wherein the block copolymer includes a repeating unit represented by the fo llow ing Chemical Formula 4 and a re p eating unit represented by the fol low ing Chemical Formula 5: [Chemical Fo nr ula 4] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.4.svg 0.32 1.26 Black and white in Chemical Formula 4, X' is C J 3 alk yl ene., and n is an integer of 1 to 10, 000, [Chemi cal Formula 5] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.5.svg 0.86 1.1 Black and white in Chemical Formula 5, R 4 is C-2 o aryl, or -COO-(C 1 4 a lkyl ene)-(C₆ -2o aryl), and m is an integer of I to 10,000. Currently amended
Canceled
Currently amended
A block copolymer is represented by th e following Chemical Formula 6: [Chemical Formula 6] SVG 15518652.04-10-2020.K₈YEUAPXLXEAPX0.CLM.6.svg 1.25 4.34 Black and white in Chemical F ormula 6, R ' i s C I-3 alkoxy, X' is C 1-3 alkylene, n is an integer of 1 to 10,000, R 4 is C₆ -20 aryl, or -COO-(C 1-4 alkylene)-(C 6-2o aryl), and m is an integer of 1 to 10, 000 ' 4. Currently amended
The block copolymer according to claim 11, wherein X' is ethylene (-CH 2 -CH 2 -). New
The block copoly m er according to claim 11, wherein R 4 is phenyl, naphthyl, or -C OOCH 2 -(p y ren y l). New
The block copoly m er according to claim 11, wherein the ratio of n: m is 2-10:1. New
(previously presented, withdra w n) A method for preparing graphene, comprising the step of passing a fe ed solution including graphite through a high-pressure homogenizer including an inlet, an outlet, and a micro-channel that connects between the inlet and the outlet and has a diameter in a micrometer scale, wherein the feed solution includes the block copo ly mer of claim
The method for preparing graphene according to claim 12, wherein graphite in the feed solution is exfoliated while passing through a micro-channel under app licati on of a shear force, thereby preparing a graphene. Withdrawn
The method for preparing graphene according to claim 12, wherein the micro-channel has a diameter of 10 to 800 pm. Withdrawn
The method for preparing graphene according to claim 12, wherein the feed solution is introduced in the inlet of the high-pressure homogenizer under app lica tion o f a pressure of 100 to 3,000 bar and passed through the micro-channe l. Withdrawn
The method for preparing graphene according to claim 12, wherein the sol vent of the f ee d solution is one or more s e lected from the group consisting of water, NMP (N-methyl-2-pyrrolidone), acetone, DMF (N,N-dimethylformamide), DMSO (dimethyl sulfoxide), CHP (cyclohexyl-pyrrolidinone), N₁₂P (N-dodecyl-pyrrolidone), benzyl b e nzoate, N₈P (N-octyl-pyrrolidone), DMEU (dimethyl-imidazolidinone), cyclohe x anone, DMA (dimethylacetamide), NMF (N-methyl fo rm amide), bromobenzene, chloroform, chlorobenzene, ben zonitrile, quinoline, benzyl ether, ethanol, isopropyl alcohol, met ha nol, butanol, 2- ethoxy et hanol, 2-butoxyethanol, 2-methoxypropanol, THF(tetrahydrofuran), ethylene glycol, pyri dine, N- vinyl pyrro li done, methyl ethyl ketone (butanone), al pha-te rpi ineo l, formic acid, ethyl acetate and acrylonitrile. Withdrawn
The method for preparing graphene according to claim 12, wherein the step of passing the material recovered in the inlet through a micro-channel is additionally repeated once to 9 ti m es. Withdrawn
Materials described outside the worked examples.
block copolymer (Chemical Formula 1 + Chemical Formula 2)
block copolymer (Chemical Formula 3)
Additional fabrication and treatment steps described in the patent.
Measurements and analyses referenced in the patent, with their drawing references.
FIG. 4 shows SEM images of the dispersions of graphene prepared in Example 1 (
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Pressure | 100–3000 bar | — |
Table 1
14 and Table 1 below.
p. 18
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