WO2020235887A1 - Copolymère multiblocs à base de polyoléfine-polystyrène et procédé de préparation s'y rapportant - Google Patents

Copolymère multiblocs à base de polyoléfine-polystyrène et procédé de préparation s'y rapportant Download PDF

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WO2020235887A1
WO2020235887A1 PCT/KR2020/006448 KR2020006448W WO2020235887A1 WO 2020235887 A1 WO2020235887 A1 WO 2020235887A1 KR 2020006448 W KR2020006448 W KR 2020006448W WO 2020235887 A1 WO2020235887 A1 WO 2020235887A1
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polystyrene
polyolefin
carbon atoms
formula
block copolymer
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PCT/KR2020/006448
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English (en)
Korean (ko)
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임슬기
사석필
이현모
박지현
김윤곤
이기수
신은지
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주식회사 엘지화학
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Priority claimed from KR1020190121192A external-priority patent/KR20200132634A/ko
Application filed by 주식회사 엘지화학 filed Critical 주식회사 엘지화학
Priority to JP2021551946A priority Critical patent/JP7250402B2/ja
Priority to US17/599,036 priority patent/US20220177634A1/en
Priority to EP20808843.5A priority patent/EP3929227A4/fr
Priority to CN202080023230.3A priority patent/CN113631604B/zh
Publication of WO2020235887A1 publication Critical patent/WO2020235887A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
    • C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/52—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides selected from boron, aluminium, gallium, indium, thallium or rare earths
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond

Definitions

  • the present invention relates to a polyolefin-polystyrene multiblock copolymer having a structure in which a polystyrene chain is attached to both terminals of a polyolefin chain, and a method for producing the same.
  • Block copolymers are widely used not only in everyday plastics, but also in advanced devices, and research and development are being actively conducted.
  • styrene-olefin copolymer resins including both a polyolefin-based (POs) block and a polystyrene-based (PSs) block have excellent features such as heat resistance, light resistance, and elasticity, and are therefore usefully used in a wide variety of technical fields.
  • POs polyolefin-based
  • PSs polystyrene-based
  • Polyolefin-polystyrene block copolymers such as styrene-ethylene-butylene-styrene (Styrene-Ethylene-Butylene-Styrene; SEBS) or styrene-ethylene-propylene-styrene (Styrene-Ethylene-Propylene-Styrene; SEPS) are currently There are hundreds of thousands of tons of markets worldwide.
  • polystyrene-block-poly(ethylene-co-1-butene)-block-polystyrene (SEBS) triblock copolymer may be exemplified as one of the styrene-olefin copolymer resins.
  • SEBS triblock copolymer exhibits thermoplastic elastomer properties because the rigid polystyrene domains in the structure are separated from the soft poly(ethylene-co-1-butene) matrix and act as a physical crosslinking site. According to these characteristics, SEBS is more widely used in product lines that require rubber and plastics, and the demand is greatly increased as the range of use thereof is gradually expanded.
  • the molecular weight and molecular weight distribution of a copolymer is an important factor in determining the mechanical properties and thermal properties of a material, and since it has a great influence on processability, analyzing the molecular weight for the analysis of the properties of the copolymer is the most basic and important technology. Is recognized as. There are several methods of measuring molecular weight, such as viscosity method, end group analysis method, and light scattering method, but the most widely used and representative method is a method using GPC (Gel Permeation Chromatography).
  • GPC Gel Permeation Chromatography
  • GPC is a method of separating substances by molecular weight difference by filling a porous gel in a column.Since substances with a large molecular weight cannot pass through the pores in the gel and are discharged, the residence time is short, and substances with a small molecular weight pass through the pores of the gel. Since it is discharged, the residence time is increased, and number average molecular weight, weight average molecular weight, etc. can be calculated from this.
  • the present inventors studied to prepare a polyolefin-polystyrene multiblock copolymer exhibiting properties such as desired tensile strength and elongation, and by adjusting the weight average molecular weight and molecular weight distribution of the copolymer to be within a specific range It was confirmed that a polyolefin-polystyrene multi-block copolymer capable of implementing the desired physical properties could be prepared, and the present invention was completed.
  • Patent Document 1 Korean Patent Registration 10-1657925
  • An object of the present invention is to provide a polyolefin-polystyrene multi-block copolymer having a structure in which a polystyrene chain is attached to both ends of a polyolefin chain, and specifically, a weight average molecular weight and a molecular weight distribution maintain a specific relationship, so that tensile strength, elongation, It is to provide a polyolefin-polystyrene multi-block copolymer exhibiting excellent mechanical properties such as modulus.
  • the present invention is the following (a) to (c) conditions measured from gel permeation chromatography (GPC), and 13 C NMR (500 MHz, tetrachloroethane-d2, standard material TMS) It provides a polyolefin-polystyrene multi-block copolymer that satisfies the following (d) conditions in the spectrum.
  • Equation 1 a Gaussian function modeled from a graph in which the x-axis is logMw and the y-axis is dw/dlogMw is expressed by Equation 1 below, and in Equation 1, each constant value is 0.006 ⁇ A ⁇ 0.04, 4.6 ⁇ B ⁇ 5.0, 0.9 ⁇ C ⁇ 1, 0.5 ⁇ D ⁇ 0.9,
  • the polyolefin block included in the polyolefin-polystyrene multi-block copolymer includes one or more branch points, wherein the branch point carbon atoms exhibit a peak of 36 to 40 ppm, and the branched chain branched from the branch point Terminal carbon atoms show a peak of 13 to 15 ppm.
  • Mw represents the weight average molecular weight of the polyolefin-polystyrene multiblock copolymer.
  • the polyolefin-polystyrene multi-block copolymer provided by the present invention has excellent mechanical properties such as tensile strength and elongation modulus, and thus can be usefully used in various industrial applications.
  • 1 shows 1 H NMR and 13 C NMR spectra of a ligand compound according to an embodiment of the present invention.
  • Equation 1 is a graph showing a polyolefin-polystyrene multi-block copolymer according to an embodiment of the present invention by Equation 1.
  • composition includes reaction products and decomposition products formed from the materials of the composition as well as mixtures of materials comprising the composition.
  • polymer refers to a polymer compound prepared by polymerizing monomers.
  • the generic term polymer in this way encompasses the term homopolymer, which is commonly used to refer to polymers made from only one monomer, and the term interpolymer as defined below.
  • interpolymer refers to a polymer prepared by polymerization of at least two different monomers.
  • generic term interpolymer includes copolymers commonly used to refer to polymers made from two different monomers, and polymers made from two or more different monomers.
  • the polyolefin-polystyrene multi-block copolymer of the present invention is the following (a) to (c) conditions measured by gel permeation chromatography (GPC), and 13 C NMR (500 MHz, tetrachloroethane-d2, standard material It is characterized by satisfying the following (d) condition in the TMS) spectrum.
  • Equation 1 a Gaussian function modeled from a graph in which the x-axis is logMw and the y-axis is dw/dlogMw is expressed by Equation 1 below, and in Equation 1, each constant value is 0.006 ⁇ A ⁇ 0.04, 4.6 ⁇ B ⁇ 5.0, 0.9 ⁇ C ⁇ 1, 0.5 ⁇ D ⁇ 0.9,
  • the polyolefin block included in the polyolefin-polystyrene multi-block copolymer includes one or more branch points, wherein the branch point carbon atoms exhibit a peak of 36 to 40 ppm, and the branched chain branched from the branch point Terminal carbon atom shows a peak of 13 to 15 ppm
  • Mw represents the weight average molecular weight of the polyolefin-polystyrene multiblock copolymer.
  • the polyolefin-polystyrene multi-block copolymer of the present invention is prepared by using a specific transition metal compound of a novel structure as a catalyst as described below, and the weight average molecular weight, which is an important factor determining the physical properties of the copolymer, is Equation 1
  • tensile properties eg, tensile strength, elongation, modulus, etc.
  • the weight average molecular weight of the polyolefin-polystyrene multiblock copolymer is 50,000 to 150,000 g/mol, specifically 60,000 to 120,000 g/mol, or 70,000 to 120,000 g/mol, or 70,000 To 100,000 g/mol.
  • the molecular weight distribution of the polyolefin-polystyrene multiblock copolymer may be 1.5 to 3.0, specifically 1.6 to 2.3, or 1.6 to 2.2.
  • the weight average molecular weight and number average molecular weight are molecular weights in terms of polystyrene analyzed by gel permeation chromatography (GPC), and the molecular weight distribution is calculated from the ratio of (weight average molecular weight)/(number average molecular weight).
  • Equation 1 of condition (c) represents a Gaussian distribution
  • constants B to D included therein are used as constant values representing the weight average molecular weight and molecular weight distribution of the copolymer, and the copolymer of the present invention is While satisfying the numerical range of A to D, the weight average molecular weight and molecular weight distribution values of conditions (a) and (b) are simultaneously satisfied.
  • Equation 1 when the following Equation 1 is derived from a Gaussian function modeled from a graph in which the x-axis is logMw and the y-axis is dw/dlogMw for the gel permeation chromatography measurement result, Each included constant value satisfies 0.006 ⁇ A ⁇ 0.04, 4.6 ⁇ B ⁇ 5.0, 0.9 ⁇ C ⁇ 1, and 0.5 ⁇ D ⁇ 0.9.
  • the constant A may be more than 0.006, more than 0.007, less than 0.040, less than 0.035
  • the constant B may be more than 4.6, less than 5.0, less than 4.9
  • the constant C may be more than 0.90, more than 0.91, less than 1.00, less than 0.99
  • the constant D may be greater than 0.5, greater than 0.6, less than 0.9, and less than 0.8.
  • Equation 1 is obtained by measuring by gel permeation chromatography based on polystyrene conversion as described above, and the horizontal axis is "(log(Mw))", which is the logarithmic value of the weight average molecular weight (Mw), and the vertical axis is the concentration fraction.
  • (w) represents a differential molecular weight distribution curve representing ⁇ dw/dlog(Mw),'' which is a value obtained by differentiating the logarithm of the weight average molecular weight (log(Mw)), which indicates the corresponding molecular weight according to the logarithmic value of the weight average molecular weight. Branches can be seen to represent the weight fraction of the polymer.
  • Equation 1 a Gaussian function modeled from a graph having an x-axis as logMw and a y-axis as dw/dlogMw is expressed by Equation 1, and at this time, constants A to D are calculated to each fall within a specific range. I figured it out.
  • the constants A to D are constants representing a curve represented by a Gaussian distribution, and show the height of the distribution curve, the width of the half of the maximum peak, and the center position of the maximum peak. More specifically, the constant A included in the Gaussian distribution represents the y-intercept, and the constant C represents the arithmetic meaning of the graph area. In addition, constants B and D represent the physical properties of the copolymer corresponding to the weight average molecular weight and molecular weight distribution.
  • the polyolefin block included in the polyolefin-polystyrene multiblock copolymer includes at least one branching point, wherein the branching point carbon atom exhibits a peak of 36 to 40 ppm, and the branching point The terminal carbon atom of the branched chain branched from shows a peak of 13 to 15 ppm.
  • the branch point carbon atom may be 36.0 ppm or more, 37.0 ppm or more, 37.5 ppm or more, and 40.0 ppm or less, 39.0 ppm or less, or 38.5 ppm or less.
  • the terminal carbon atom of the branched chain branched from the branching point may be 13.0 ppm or more, 13.5 ppm or more, 15.0 ppm or less, 14.5 ppm or less.
  • the polyolefin-polystyrene multi-block copolymer of the present invention has a branched chain characterized by a long length in the polyolefin block, which is a unique peak region in 13 C NMR of the terminal carbon atom of the branched chain branched from the branch point. Can be confirmed by Through these characteristics, the polyolefin-polystyrene multi-block copolymer of the present invention exhibits excellent physical properties such as high impact strength compared to the conventional copolymer.
  • the polyolefin-polystyrene multi-block copolymer is polystyrene-poly(ethylene-co-propylene)-polystyrene block copolymer, polystyrene-poly(ethylene-co-1-butene)-polystyrene block copolymer, polystyrene-poly(ethylene- co-1-pentene)-polystyrene block copolymer, polystyrene-poly(ethylene-co-1-hexene)-polystyrene block copolymer, polystyrene-poly(ethylene-co-1-heptene)-polystyrene block copolymer and polystyrene- It may be one or more selected from the group consisting of poly(ethylene-co-1-octene)-polystyrene block copolymers.
  • polyolefin-polystyrene multi-block copolymer of the present invention may have the following tensile properties by satisfying the conditions (a) to (d).
  • the polyolefin-polystyrene-based multi-block copolymer may have a tensile strength representing the maximum tensile stress at the time of pulling and breaking to apply a load uniformly to the cross-sectional area of 10 to 100 MPa, and specifically 10 To 50 Mpa, more specifically 20 to 40 Mpa.
  • the polyolefin-polystyrene multi-block copolymer has an elongation at break, expressed as a percentage, of the ratio of the lengthened to the original length as a deformation in the direction of tensioning caused by tensioning is 500 to 3,000%, 600 to 2,800% , 800 to 2,500% may be.
  • the polyolefin-polystyrene multi-block copolymer exhibits excellent strength and elasticity as a tensile stress when 300% elongation is applied and has a 300% modulus expressed as an average force per unit area of 2.1 to 10.0 Mpa. Have characteristics.
  • Tensile properties such as tensile strength, elongation, and 300% modulus may be measured by the method of standard measurement ASTM D412.
  • the polyolefin-polystyrene multi-block copolymer of the present invention satisfies the above ranges of tensile strength, elongation, and 300% modulus, and exhibits excellent physical properties compared to the conventional copolymer, and the manufacturing method provided by the present invention
  • polyolefin block of the copolymer of the present invention may include one or more repeating units represented by the following formula (a).
  • R 1 is hydrogen; Alkyl of 1 to 20 carbon atoms; Alkyl having 1 to 20 carbon atoms substituted with silyl; Arylalkyl having 7 to 20 carbon atoms; Or a C7 to C20 arylalkyl substituted with silyl,
  • n may be an integer from 1 to 10,000.
  • the R 1 is hydrogen; It may be an alkyl having 3 to 20 carbon atoms.
  • the R 1 is hydrogen; Or it may be an alkyl having 3 to 12 carbon atoms, specifically, R 1 may be hydrogen or an alkyl having 4 to 12 carbon atoms.
  • n may be an integer of 10 to 10,000, and specifically, may be an integer of 500 to 7,000.
  • the polyolefin block may include a repeating unit represented by Formula b below.
  • R 1 ′ and R 1 ′′ are each independently hydrogen, alkyl having 1 to 20 carbon atoms; alkyl having 1 to 20 carbon atoms substituted with silyl; Arylalkyl having 7 to 20 carbon atoms; Or arylalkyl having 7 to 20 carbon atoms substituted with silyl;
  • the R 1 ′ and R 1 ′′ are different from each other,
  • n' may be an integer of 1 to 10,000.
  • the R 1 ′ and R 1 ′′ may each independently be hydrogen or an alkyl having 3 to 20 carbon atoms, and specifically, each independently hydrogen or an alkyl having 3 to 12 carbon atoms And, more specifically, each may independently be hydrogen or alkyl having 4 to 12 carbon atoms.
  • n' may be an integer of 10 to 10,000, and more specifically, may be an integer of 500 to 7,000.
  • one of R 1 ′ and R 1 ”in Formula b may be hydrogen, and the other may be a substituent other than hydrogen among the aforementioned substituents.
  • the polyolefin blocks in this case comprise a repeating unit represented by the formula (a) two or more thereof, R 1 is an alkyl of the structure and R 1 is 1 to 20 carbon atoms other than a hydrogen hydrogen; Alkyl having 1 to 20 carbon atoms substituted with silyl; Arylalkyl having 7 to 20 carbon atoms; Or a silyl group of a carbon number of arylalkyl is a structure of 7 to 20 may be connected at random (random), specifically, R 1 is an alkyl structure of the structure and R 1 is 3 to 20 carbon atoms other than a hydrogen hydrogen substituted with May be randomly connected.
  • R 1 is an alkyl of the structure and R 1 is 1 to 20 carbon atoms other than a hydrogen hydrogen substituted with May be randomly connected.
  • the polyolefin block may have a structure in which R 1 is hydrogen and a structure in which R 1 is alkyl having 3 to 12 carbon atoms are randomly connected in the formula (a), and more specifically, the polyolefin block is In the formula (a), a structure in which R 1 is hydrogen and a structure in which R 1 is an alkyl having 4 to 12 carbon atoms may be randomly connected.
  • the polyolefin blocks are of the structure R 1 R 1 is hydrogen in the formula (a) 30:90 a structure having a substituent other than hydrogen It may be included in a weight ratio of 70:10, specifically, it may be included in a weight ratio of 40:60 to 60:40, and more specifically, it may be included in a weight ratio of 45:75 to 55:25.
  • the said polyolefin block comprises a branch (branch) suitable degree in the case to contain the structure in which R 1 is hydrogen in the structure and R 1 in the formula (a) has a substituent other than hydrogen in the above range, to be produced a block copolymer structure , It has a high 300% modulus value and elongation at break value, so that excellent elastic properties can be exhibited, and also exhibits a wide molecular weight distribution with a high molecular weight, so that it can have excellent processability.
  • first polystyrene block of the copolymer of the present invention may include one or more repeating units represented by the following formula (c).
  • R 2 is aryl having 6 to 20 carbon atoms; Or a halogen, C 1 to C 12 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted with aryl,
  • l is independently an integer from 10 to 1,000.
  • R 2 is phenyl; Or halogen, C 1 to C 8 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted or unsubstituted phenyl may be, and R 2 may be phenyl have.
  • l is an integer of 10 to 1,000, specifically may be an integer of 50 to 700, and when l is in the above range, the viscosity of the polyolefin-polystyrene block copolymer prepared by the production method of the present invention may have an appropriate level. have.
  • the copolymer of the present invention comprises a composite block represented by the following formula (d) formed by combining a polyolefin block comprising a repeating unit represented by Formula a and a first polystyrene block comprising a repeating unit represented by Formula c. Can be formed.
  • R 1 is hydrogen; Alkyl of 1 to 20 carbon atoms; Alkyl having 1 to 20 carbon atoms substituted with silyl; Arylalkyl having 7 to 20 carbon atoms; Or a C7 to C20 arylalkyl substituted with silyl,
  • R 2 is aryl having 6 to 20 carbon atoms; Or a halogen, C 1 to C 12 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted with aryl,
  • l is an integer from 10 to 1,000
  • n is an integer from 1 to 10,000.
  • R 1 , R 2 , l and n are as defined in Formulas a and c, respectively.
  • the composite block formed by bonding the first polystyrene block including the repeating unit represented by Formula c may be represented by Formula e below.
  • a styrene-based monomer forms a polyolefin block, and at the same time, the styrene-based monomer is bonded to an organic zinc compound and polymerized to form a separate styrene-based polymer block.
  • the separate styrene-based polymer block is referred to as a second polystyrene block.
  • the second polystyrene block may include a repeating unit represented by Formula f below.
  • R 3 is aryl having 6 to 20 carbon atoms; Or a halogen, C 1 to C 12 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted with aryl,
  • n is independently an integer from 10 to 1,000.
  • R 3 is phenyl; Or halogen, C 1 to C 8 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl may be substituted or unsubstituted phenyl, and, in addition, R 3 is phenylyl I can.
  • the m is an integer of 10 to 1,000, and specifically may be an integer of 50 to 700.
  • the copolymer of the present invention may include a first polystyrene block including a repeating unit represented by Formula c and a second polystyrene block represented by Formula f.
  • the block copolymer composition may include a polyolefin block including one or more repeating units represented by the following formula (a); A first polystyrene block comprising a repeating unit represented by the following formula (c); And a triblock copolymer including a second polystyrene block including a repeating unit represented by Formula f below.
  • R 1 is hydrogen; Alkyl of 1 to 20 carbon atoms; Alkyl having 1 to 20 carbon atoms substituted with silyl; Arylalkyl having 7 to 20 carbon atoms; Or a C7 to C20 arylalkyl substituted with silyl,
  • R 2 and R 3 is aryl having 6 to 20 carbon atoms; Or a halogen, C 1 to C 12 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted with aryl,
  • n is an integer from 10 to 10,000
  • l and m are each independently an integer of 10 to 1,000.
  • R 1 , R 2 , R 3 , n, l and m are as defined in the formulas a, c and f, respectively.
  • the method for preparing a polyolefin-polystyrene multi-block copolymer of the present invention (S1) is a polyolefin block by polymerizing an olefin-based monomer using an organic zinc compound as a chain transfer agent in the presence of a catalyst composition containing a transition metal compound represented by Formula 1 below. Forming a; And (S2) forming a polystyrene block by anionic polymerization of the polyolefin block and a styrene-based monomer in the presence of an alkyl lithium compound and a triamine compound containing a silicon atom.
  • the production method of the present invention forms a polyolefin chain by using a transition metal compound represented by Formula 1 efficiently used in polymerization of an olefinic monomer as a catalyst, and then continuously performs styrene anionic polymerization to obtain polyolefin-polystyrene.
  • a transition metal compound represented by Formula 1 efficiently used in polymerization of an olefinic monomer as a catalyst, and then continuously performs styrene anionic polymerization to obtain polyolefin-polystyrene.
  • a block it is possible to form a polyolefin-polystyrene multiblock copolymer having a specific height of a tan ⁇ peak and a half width of a tan ⁇ peak.
  • Step (S1) is a step of forming a polyolefin block by polymerizing an olefin-based monomer using an organic zinc compound as a chain transfer agent in the presence of a catalyst composition including a transition metal compound represented by Formula 1 below.
  • R 1 to R 11 are each independently hydrogen; An alkyl group having 1 to 20 carbon atoms; An alkenyl group having 2 to 20 carbon atoms; Alkynyl group having 2 to 20 carbon atoms; A cycloalkyl group having 3 to 20 carbon atoms; Aryl group having 6 to 20 carbon atoms; Arylalkoxy group having 7 to 20 carbon atoms; An alkoxy group having 1 to 20 carbon atoms; An alkylaryl group having 7 to 20 carbon atoms; An alkylsilyl group having 1 to 20 carbon atoms; Or an arylalkyl group having 7 to 20 carbon atoms,
  • R 1 to R 11 may be connected to each other to form an aliphatic ring having 3 to 20 carbon atoms or an aromatic ring having 6 to 20 carbon atoms,
  • X 1 and X 2 are each independently hydrogen; halogen; Hydroxy group; Amino group; Pyo; Silyl group; Cyano group; Nitro group; An alkyl group having 1 to 20 carbon atoms; An alkenyl group having 2 to 20 carbon atoms; Alkynyl group having 2 to 20 carbon atoms; A cycloalkyl group having 3 to 20 carbon atoms; Aryl group having 6 to 20 carbon atoms; An alkylaryl group having 7 to 20 carbon atoms; Arylalkyl group having 7 to 20 carbon atoms; A heteroaryl group having 5 to 20 carbon atoms; An alkoxy group having 1 to 20 carbon atoms; Aryloxy group having 6 to 20 carbon atoms; An alkylamino group having 1 to 20 carbon atoms; Arylamino group having 6 to 20 carbon atoms; Alkylthio groups having 1 to 20 carbon atoms; Arylthio groups having 6 to 20 carbon atoms; An alkylsilyl group having
  • CCTP coordinative chain transfer polymerization
  • Metallocene catalysts used in the past cannot be subjected to living polymerization through a ⁇ -elimination process, and a few catalysts known to be applicable to CCTP are only capable of single polymerization of ethylene, ethylene and alpha-olefins. Since it was very difficult to carry out the copolymerization of CCTP as a catalyst, it was very difficult to perform living polymerization through CCTP and prepare a block copolymer using a general transition metal compound as a catalyst.
  • an excess chain transfer agent e.g., (Et) 2 Zn
  • the hafnium compound represented by Formula 1 is 1,2,3,4-tetrahydro-1,10-phenanthroline (1,2,3,4-tetrahydro-1,10-phenanthroline) skeleton and Hf- As a [N amido ,N,C aryl ]HfMe 2 -type complex containing a C(aryl) bond, it exhibits excellent alpha-olefin mixing ability in the polymerization reaction of ethylene and alpha-olefin, and in particular, depending on the content of the chain transfer agent.
  • the molecular weight of the olefin polymer or the content of the alpha-olefin varies, indicating that the compound is used successfully in CCTP and that the ⁇ -elimination reaction rarely occurs to a negligible degree. That is, it is possible to carry out the copolymerization of ethylene and alpha-olefin monomers by CCTP using the hafnium compound represented by Formula 1 to perform living polymerization, and a block copolymer having various block compositions can be successfully prepared.
  • the hafnium compound can be usefully used as a catalyst for the production of an olefin polymer, which is a unique feature that can be achieved with a novel structure of the hafnium compound represented by Formula 1.
  • R 1 to R 11 are each independently hydrogen; An alkyl group having 1 to 20 carbon atoms; A cycloalkyl group having 3 to 20 carbon atoms; Or it may be an aryl group having 6 to 20 carbon atoms, preferably R 1 to R 10 are hydrogen, and at the same time R 11 is hydrogen; An alkyl group having 1 to 20 carbon atoms; Or it may be an aryl group having 6 to 20 carbon atoms, more preferably, R 1 to R 10 are hydrogen, and at the same time R 11 is hydrogen; Or it may be an alkyl group having 1 to 20 carbon atoms.
  • the R 1 to R 11 are each independently hydrogen; An alkyl group having 1 to 20 carbon atoms; Or it may be an aryl group having 6 to 20 carbon atoms, in which case, R 3 and R 4 may be connected to each other to form an aromatic ring having 5 to 20 carbon atoms, such as a benzene ring, preferably R 3 and R 4 are each Is connected to form a benzene ring, and at the same time, R 11 is an alkyl group having 1 to 20 carbon atoms; Or it may be an aryl group having 6 to 20 carbon atoms.
  • R 1 , R 2 , and R 5 to R 10 are hydrogen, and R 3 , R 4 and R 11 are each independently hydrogen; Or an alkyl group having 1 to 20 carbon atoms, and R 3 and R 4 may be connected to each other to form an aromatic ring having 5 to 20 carbon atoms, such as a benzene ring.
  • X 1 and X 2 are each independently hydrogen; An alkyl group having 1 to 20 carbon atoms; A cycloalkyl group having 3 to 20 carbon atoms; Alternatively, it may be an aryl group having 6 to 20 carbon atoms, and preferably each independently may be an alkyl group having 1 to 20 carbon atoms, and X 1 and X 2 may be the same as each other.
  • alkyl means a straight or branched chain hydrocarbon residue.
  • alkenyl means a linear or branched alkenyl group.
  • aryl preferably has 6 to 20 carbon atoms, and specifically, phenyl, naphthyl, anthracenyl, pyridyl, dimethylanilinyl, anisolyl, and the like, but are not limited thereto.
  • alkylaryl means an aryl group substituted by the alkyl group.
  • arylalkyl refers to an alkyl group substituted by the aryl group.
  • alkylsilyl may be silyl substituted with alkyl having 1 to 20 carbon atoms, for example, trimethylsilyl or triethylsilyl.
  • alkylamino refers to an amino group substituted by the alkyl group, and includes a dimethylamino group and a diethylamino group, but is not limited thereto.
  • hydrocarbyl unless otherwise stated, alkyl, aryl, alkenyl, alkynyl, cycloalkyl, alkylaryl or arylalkyl, regardless of its structure, consisting of only carbon and hydrogen, monovalent monovalent It means a hydrocarbon group.
  • hafnium compound represented by Formula 1 may be a hafnium compound represented by Formula 1a or 1b below:
  • R 11 is hydrogen; An alkyl group having 1 to 20 carbon atoms; An alkenyl group having 2 to 20 carbon atoms; Alkynyl group having 2 to 20 carbon atoms; A cycloalkyl group having 3 to 20 carbon atoms; Aryl group having 6 to 20 carbon atoms; Arylalkoxy group having 7 to 20 carbon atoms; An alkoxy group having 1 to 20 carbon atoms; An alkylaryl group having 7 to 20 carbon atoms; An alkylsilyl group having 1 to 20 carbon atoms; Or an arylalkyl group having 7 to 20 carbon atoms,
  • X 1 and X 2 are each independently hydrogen; halogen; Hydroxy group; Amino group; Pyo; Silyl group; Cyano group; Nitro group; An alkyl group having 1 to 20 carbon atoms; An alkenyl group having 2 to 20 carbon atoms; Alkynyl group having 2 to 20 carbon atoms; A cycloalkyl group having 3 to 20 carbon atoms; Aryl group having 6 to 20 carbon atoms; An alkylaryl group having 7 to 20 carbon atoms; Arylalkyl group having 7 to 20 carbon atoms; A heteroaryl group having 5 to 20 carbon atoms; An alkoxy group having 1 to 20 carbon atoms; Aryloxy group having 6 to 20 carbon atoms; An alkylamino group having 1 to 20 carbon atoms; Arylamino group having 6 to 20 carbon atoms; Alkylthio groups having 1 to 20 carbon atoms; Arylthio groups having 6 to 20 carbon atoms; An alkylsilyl group having
  • the hafnium compound may be specifically represented by any one of Formulas 1-1 to 1-5, but is not limited thereto, and all hafnium compounds corresponding to Formula 1 are included in the present invention.
  • the hafnium compound of the present invention may be prepared including a step of reacting a compound represented by the following formula (2) and a compound represented by formula (3).
  • the steps of preparing a ligand compound may be performed differently as follows according to the structure of the finally prepared hafnium compound.
  • R 3 and R 4 in the ligand compound do not form a ring with each other and R 11 is a hydrogen atom
  • hydrogenation is performed under a ruthenium catalyst to prepare a ligand compound and then reacted with the compound represented by Formula 3, which is a hafnium precursor.
  • Hafnium compounds can be prepared.
  • R 11 is first introduced using an organolithium compound as shown in Scheme 2 below, and then under a ruthenium catalyst. Hydrogenation produces a ligand compound.
  • R 11 is a substituent other than a hydrogen atom
  • R 11 is first introduced using an organolithium compound as follows. Thereafter, in order to prevent hydrogenation of an aromatic ring such as a naphthyl group, a ligand compound may be prepared by hydrogenation under a Pd/C catalyst.
  • the hafnium compound may be prepared by preparing a ligand compound through alkylation and hydrogenation under appropriate reagents and reaction conditions for a compound that is a precursor of the ligand compound, and then introducing hafnium thereto, and specific types of alkylation reagents, reaction temperature, and Pressure and the like can be appropriately changed by a person skilled in the art in consideration of the structure and experimental conditions of the final compound.
  • the organic zinc compound is a material that is used as a chain transfer agent to induce a copolymer to be prepared by allowing chain transfer to occur during production in a polymerization reaction, specifically, a compound represented by the following formula (4). I can.
  • A is an alkylene having 1 to 20 carbon atoms; Arylene having 6 to 20 carbon atoms; Or a halogen, C 1 to C 12 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted with C 6 to C 20 arylene,
  • B is an arylene having 6 to 12 carbon atoms substituted with alkenyl having 2 to 12 carbon atoms.
  • A is an alkylene having 1 to 12 carbon atoms; Arylene having 6 to 12 carbon atoms; Or halogen, C 1 to C 12 alkyl, C 3 to C 12 cycloalkyl, C 1 to C 8 alkoxy or C 6 to C 12 aryl substituted with C 6 to C 12 arylene,
  • B may be an arylene having 6 to 12 carbon atoms substituted with alkenyl having 2 to 8 carbon atoms.
  • Formula 4 may have a structure in which both ends of the formula are double bonds.
  • B is an arylene substituted with alkenyl
  • the arylene is connected to the A, and the double of alkenyl substituted with the arylene
  • the bond may be located at the outermost portion in Formula 4.
  • polymerization may be performed while the olefinic monomer is inserted between the zinc (Zn) and the organic group (A) of the organic zinc compound.
  • the organozinc compound may be mixed in an amount of 1 to 200 equivalents per equivalent of the transition metal compound of Formula 1, and specifically, may be mixed in an amount of 10 to 100 equivalents per equivalent of the transition metal compound of Formula 1 I can.
  • the organozinc compound does not contain impurities such as THF and a large amount of magnesium salt, it can be provided with high purity, and thus can be used as a chain transfer agent, and is advantageous for use in olefin polymerization.
  • the catalyst composition may further include a cocatalyst compound.
  • the cocatalyst compound plays a role of activating the transition metal compound represented by Formula 1, and a cocatalyst known in the art may be used, for example, one selected from Formulas 5 to 7 below as a cocatalyst. You can use the above.
  • Each R a is independently a halogen radical; A hydrocarbyl radical having 1 to 20 carbon atoms; Or a hydrocarbyl radical having 1 to 20 carbon atoms substituted with a halogen,
  • n is an integer of 2 or more
  • D is aluminum or boron
  • L is a neutral or cationic Lewis acid
  • Z is a group 13 element
  • Each A is independently aryl having 6 to 20 carbon atoms in which one or more hydrogen atoms may be substituted with a substituent; Or alkyl having 1 to 20 carbon atoms,
  • the substituent of A is halogen; Hydrocarbyl having 1 to 20 carbon atoms; Alkoxy having 1 to 20 carbon atoms; Or aryloxy having 6 to 20 carbon atoms.
  • the compound represented by Chemical Formula 5 is not particularly limited as long as it is an alkylaluminoxane.
  • Preferred examples include methylaluminoxane, ethylaluminoxane, isobutylaluminoxane, butylaluminoxane, and the like, and a particularly preferred compound is methylaluminoxane.
  • the compound represented by Formula 6 is not particularly limited, but preferred examples include trimethyl aluminum, triethyl aluminum, triisobutyl aluminum, tripropyl aluminum, tributyl aluminum, dimethyl chloro aluminum, triisopropyl aluminum, tri-s-butyl aluminum.
  • Examples of the compound represented by Formula 7 are when Z is boron, for example, dioctadecylmethylammonium tetrakis(pentafluorophenyl)borate [(C 18 H 37 ) 2 N(H)Me] + [B(C 6 F 5 ) 4 ] - , Dioctadecylmethylammonium tetrakis(phenyl)borate, dioctadecylmethylammonium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate tetrakis(phenyl)borate, tri Ethyl ammonium tetraphenylborate, tributylammonium tetraphenylborate, trimethylammonium tetraphenylborate, tripropylammonium tetraphenylborate, trimethylammonium tetra(p-tolyl)borate, trimethylammonium
  • the cocatalyst used in the present invention may be a compound represented by Formula 7 above, and specifically, may be dioctadecylmethylammonium dioctadecylmethylammonium tetrakis(pentafluorophenyl)borate.
  • the cocatalyst used in the present invention may be prepared in anhydrous hydrocarbon solvent.
  • the hydrocarbon solvent may be one or more selected from the group consisting of butane, pentane, neopentane, hexane, cyclohexane, methylcyclohexane, heptane, octane, benzene, toluene, xylene and ethylbenzene, but limited thereto. It is not, and all hydrocarbon solvents available in the art can be used in anhydrous form.
  • the cocatalyst when the cocatalyst is prepared in anhydrous hydrocarbon solvent, in the 1 H NMR spectrum, at least one peak appears in the range of 1.75 ppm to 1.90 ppm and 1.90 ppm to 2.00 ppm, respectively.
  • the compound represented by Formula 1 is [(C 18 H 37 ) 2 N(H)Me] + [B(C 6 F 5 ) 4 ] - , in its 1 H NMR spectrum, it is present in NC H 2
  • Each of the two protons can represent different signals.
  • hafnium compound and cocatalyst represented by Formula 1 may be used in a form supported on a carrier.
  • Silica or alumina may be used as the carrier, but is not limited thereto.
  • the olefin monomer introduced as a reactant in the step (S1) is ethylene, propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, 1-decene , 1-undecene, 1-dodecene, 1-tetradecene, 1-hexadecene and 1-eicosene, or a monomer formed from a mixture thereof, and the like.
  • the olefin monomer may be used alone or in combination of two or more.
  • the step (S1) may be performed, for example, in a homogeneous solution state.
  • a hydrocarbon solvent or an olefin monomer itself may be used as the solvent.
  • the hydrocarbon solvent include an aliphatic hydrocarbon solvent having 4 to 20 carbon atoms, specifically isobutane, hexane, cyclohexane, methylcyclohexane, and the like. The above solvents may be used alone or in combination of two or more.
  • the polymerization temperature in step (S1) may vary depending on the reaction material, reaction conditions, and the like, but may be performed at 70 to 170°C, specifically 80 to 150°C, or 90 to 120°C. Within the above range, it is possible to thermally stabilize the catalyst while increasing the solubility of the polymer.
  • step (S1) may be carried out batchwise, semi-continuously or continuously, and may also be carried out in two or more steps having different reaction conditions.
  • step (S1) may serve as a precursor for preparing the polyolefin-polystyrene-based multiblock copolymer of the present invention by anionic polymerization reaction of step (S2) described later.
  • the step (S2) is an anionic polymerization of the polyolefin block and a styrene-based monomer in the presence of an alkyl lithium compound and a triamine compound including a silicon atom in succession to step (S1) to form a polystyrene block, thereby forming a polyolefin-polystyrene multiplex
  • This is a step of preparing a block copolymer.
  • a styrene-based monomer may be continuously inserted between the zinc-carbon bonds of (polyolefinyl) 2 Zn contained in the compound formed by the above-described step (S1), and at the same time, in step (S1).
  • the styrene group present in the terminal of the compound thus formed may participate as a site for copolymerization with a styrene-based monomer to be linked to the polystyrene chain.
  • the multi-block copolymer produced through the above process can be easily quenched by reacting with water, oxygen, or organic acid in the end group, and through this, it is converted into an industrially useful polyolefin-polystyrene multi-block copolymer.
  • the styrene-based monomer may be a styrene-based monomer having 6 to 20 carbon atoms. More specifically, it may be a styrene-based monomer including ethylene substituted with an aryl group having 6 to 20 carbon atoms or ethylene substituted with a phenyl group, such as styrene.
  • the alkyl lithium compound including the silicon atom may be a compound represented by Formula 8 below.
  • the alkyl lithium compound containing such a silicon atom is a material widely used as an initiator of anionic polymerization and is readily available for use in the present invention.
  • the triamine compound may be a compound represented by Formula 9 below.
  • the triamine compound is a compound used for the purpose of improving the reactivity as a base or as a nucleophile of the alkyl lithium compound by coordinating well with lithium, and is readily available and inexpensive.
  • the present invention is a polystyrene homopolymer, polyolefin homopolymer, polyolefin-polystyrene diblock copolymer by newly using the compounds of Formulas 8 and 9 (e.g., Me 3 SiCH 2 Li ⁇ (PMDETA)) as the initiator of step (S2). While suppressing the amount of coalescence, it is possible to maximize the production of the polyolefin-polystyrene multi-block copolymer, which is the object of the present invention.
  • the compounds of Formulas 8 and 9 e.g., Me 3 SiCH 2 Li ⁇ (PMDETA)
  • the alkyl lithium compound containing a silicon atom represented by Formula 8 and the triamine compound represented by Formula 9 may be mixed and introduced in an aliphatic hydrocarbon solvent, or alkyl lithium containing a silicon atom represented by Formula 8 in the reactor.
  • the compound and the triamine compound represented by Chemical Formula 9 may be sequentially added.
  • the anionic polymerization temperature of the step (S2) may vary depending on the reaction material and reaction conditions, but may be performed at 40 to 170°C, more specifically 60 to 150°C, or 90 to 100°C.
  • step (S2) may be carried out in a batch mode, semi-continuous mode or continuously, and may also be carried out in two or more steps having different reaction conditions.
  • the anionic polymerization time of the step (S2) may vary depending on the reaction material and reaction conditions, but may be specifically 0.5 to 10 hours, 1 to 8 hours, 2 to 7 hours, or 4 to 6 hours. Within the above range, it is advantageous to convert the total amount of the introduced styrene-based monomer into a multiblock copolymer.
  • a polyolefin-polystyrene multi-block through a method of continuously performing styrene anionic polymerization after growing a polyolefin chain through olefin polymerization using an organic zinc compound represented by Formula 4 above.
  • a copolymer is prepared, and through this, a polyolefin-polystyrene multi-block copolymer that is easy to be used in industry because of improved physical properties than the conventional one can be efficiently prepared.
  • MeMgBr (1.24 mL, 3.11 M in diethyl ether) was added dropwise to a stirred suspension (0.300 g, 0.938 mmol) of HfCl 4 in toluene (8 mL) at -78°C. After stirring for 1 hour at a temperature range of -40°C and -35°C, the solution was cooled to -78°C again. A solution (0.24 g, 0.94 mmol) of a ligand compound (0.366 g, 1.00 mmol) in toluene (4 mL) was added dropwise.
  • the Parr reactor (600mL) was vacuum-dried at 120°C for 2 hours. A solution of Oc3Al (349.0 mg, 238 ⁇ mol-Al) in methylcyclohexane (200 g) was added to the reactor. The mixture was stirred at 120° C. for 1 hour using a heating jacket, and then the solution was removed using a cannula.
  • Me 3 SiCH 2 Li (64.6 mg, 0.686 mmol) and PMDETA (130.7 mg, 0.755 mmol) were mixed with methylcyclohexane (3.85 g) to prepare Me 3 SiCH 2 Li ⁇ (PMDETA ) Solution was added.
  • styrene (15.0 g) was injected. The temperature was controlled in the range of 90 ⁇ 100 °C using a heating jacket.
  • transition metal compound a compound represented by the following formula was used and prepared in the following manner.
  • a solution of trimethylaluminum (14.4 mg, 200 umol-Al) dissolved in methylcyclohexane (17 g) was injected into a high-pressure reactor.
  • the catalyst poison in the high-pressure reactor was purged at 100° C. for 1 hour, and the solution was removed using a cannula.
  • the organic zinc compound (49.1 mg, 150 ⁇ mol) was dissolved in methylcyclohexane (40 g) and added to a high-pressure reactor, and the temperature was raised to 80°C.
  • the transition metal compound and (C 18 H 37 )N(Me)H + [B(C 6 F 5 ) 4 ] - (4.0 ⁇ mol) were stirred in benzene for 2 hours, and a solution of trioctyl aluminum (50 ⁇ mol, 18.3 mg) was diluted with a solution (1.0 g) dissolved in methylcyclohexane (15 g).
  • an ethylene-propylene mixed gas was immediately injected at a pressure of 20 bar.
  • the temperature was adjusted in the range of 95 to 115°C.
  • the pressure was gradually decreased due to consumption of the monomer, and after performing the polymerization process at 45° C. for 55 minutes, the remaining gas was discharged.
  • Me 3 SiCH 2 Li 150 ⁇ mol, 14.1 mg
  • PMDETA 150 ⁇ mol, 26 mg
  • the stirring temperature was maintained from 90°C to 100°C.
  • Styrene (7.8 g) was injected into a high-pressure reactor, maintained between 90°C and 100°C, and reacted over 5 hours to convert all styrene monomers. After complete conversion of the styrene monomer, acetic acid and ethanol were continuously injected. After the polymer was obtained, it was dried in a vacuum oven at 180° C. overnight.
  • a copolymer was prepared in the same manner as in Comparative Example 5, except that the polymerization conditions were changed as shown in Table 2 below.
  • Catalyst type Catalyst input amount (umol) Cocatalyst (umol) Zn(umol) Alpha-olefin Styrene (g) Chain transfer reaction temperature, timekinds input
  • Example 1 Formula 1-3 5.0 5.0 479.5 1-hexene 50.475g 15.0 90 ⁇ 120°C, 40 min
  • Example 2 Formula 1-3 5.0 5.0 479.5 1-hexene 40.38g 16.0 90 ⁇ 120°C, 40 min
  • Example 3 Formula 1-3 1.5 1.5 144.3 1-hexene 33.65g 16.0 90 ⁇ 120°C, 40 min
  • Example 4 Formula 1-3 1.5 1.5 144.3 1-hexene 40.38g 16.0 90 ⁇ 120°C, 40 min
  • Example 5 Formula 1-3 1.5 1.5 196.8 1-hexene 47.11g 16.0 90 ⁇ 120°C, 40 min
  • Example 6 Formula 1-3 1.5 1.5 481.0 1-hexene 47.11g 16.0 90 ⁇ 120°C, 40 min
  • Example 7 Formula 1-3 1.5 1.5 481.0 1-he
  • the weight average molecular weight (Mw, g/mol) and number average molecular weight (Mn, g/mol) were measured using gel permeation chromatography (GPC), and the weight average molecular weight was divided by the number average molecular weight to obtain the molecular weight.
  • the distribution (polydispersity index, PDI) was calculated.
  • GPC measurement data was fitted with Gaussian function using Origin's Nonlinear Curve Fit.
  • a Bruker AVANCEIII 500 MHz NMR was used, and about 50 mg of a sample was put in 1.2 mL of a TCE-d2 (tetrachloroethane-d2) solvent and heated at 100° C. for 1 hour in a heating block, followed by vortexing 2-3 times in the middle. After confirming that the sample was uniformly dissolved, the sample was transferred to an NMR tube, and a 13 C NMR spectrum was measured at 100°C.
  • TCE-d2 tetrachloroethane-d2
  • test piece was prepared according to the tensile test method of ASTM D412, and tensile strength, elongation, and 300% modulus were measured.

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Abstract

La présente invention concerne un copolymère multiblocs à base de polyoléfine-polystyrène ayant une structure dans laquelle des chaînes de polystyrène sont liées aux deux extrémités terminales de chaînes de polyoléfine et un procédé de préparation s'y rapportant. Le copolymère multiblocs à base de polyoléfine-polystyrène selon la présente invention présente des propriétés mécaniques supérieures, telles que la résistance à la traction, l'allongement, le module, etc., et peut ainsi être utilisé efficacement à diverses fins industrielles.
PCT/KR2020/006448 2019-05-17 2020-05-15 Copolymère multiblocs à base de polyoléfine-polystyrène et procédé de préparation s'y rapportant WO2020235887A1 (fr)

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US17/599,036 US20220177634A1 (en) 2019-05-17 2020-05-15 Polyolefin-Polystyrene Multi-Block Copolymer and Method for Producing Same
EP20808843.5A EP3929227A4 (fr) 2019-05-17 2020-05-15 Copolymère multiblocs à base de polyoléfine-polystyrène et procédé de préparation s'y rapportant
CN202080023230.3A CN113631604B (zh) 2019-05-17 2020-05-15 聚烯烃-聚苯乙烯多嵌段共聚物及其制备方法

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227162B2 (fr) * 1971-05-14 1977-07-19
KR20100134571A (ko) * 2008-01-30 2010-12-23 다우 글로벌 테크놀로지스 인크. 에틸렌/α-올레핀 블록 혼성중합체
KR101657925B1 (ko) 2015-02-10 2016-09-20 아주대학교산학협력단 폴리올레핀-폴리스티렌 블록공중합체를 포함하는 유기 아연 화합물 및 이의 제조 방법
US20170037174A1 (en) * 2014-04-03 2017-02-09 Denka Company Limited Cross-copolymer, and resin composition
KR101732418B1 (ko) * 2016-03-15 2017-05-24 아주대학교 산학협력단 폴리올레핀-폴리스티렌 다중블록 공중합체 및 그 제조 방법
KR101848781B1 (ko) * 2017-03-31 2018-04-17 아주대학교산학협력단 폴리스티렌-폴리올레핀-폴리스티렌 삼중블록 공중합체 및 이의 제조 방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5227162B2 (fr) * 1971-05-14 1977-07-19
KR20100134571A (ko) * 2008-01-30 2010-12-23 다우 글로벌 테크놀로지스 인크. 에틸렌/α-올레핀 블록 혼성중합체
US20170037174A1 (en) * 2014-04-03 2017-02-09 Denka Company Limited Cross-copolymer, and resin composition
KR101657925B1 (ko) 2015-02-10 2016-09-20 아주대학교산학협력단 폴리올레핀-폴리스티렌 블록공중합체를 포함하는 유기 아연 화합물 및 이의 제조 방법
KR101732418B1 (ko) * 2016-03-15 2017-05-24 아주대학교 산학협력단 폴리올레핀-폴리스티렌 다중블록 공중합체 및 그 제조 방법
KR101848781B1 (ko) * 2017-03-31 2018-04-17 아주대학교산학협력단 폴리스티렌-폴리올레핀-폴리스티렌 삼중블록 공중합체 및 이의 제조 방법

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