WO2021149982A1 - 변성 공액디엔계 중합체, 이의 제조방법 및 이를 포함하는 고무 조성물 - Google Patents
변성 공액디엔계 중합체, 이의 제조방법 및 이를 포함하는 고무 조성물 Download PDFInfo
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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- C08F8/00—Chemical modification by after-treatment
- C08F8/42—Introducing metal atoms or metal-containing groups
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- C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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- C08C19/22—Incorporating nitrogen atoms into the molecule
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- C08C19/00—Chemical modification of rubber
- C08C19/30—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
- C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
- C08C19/44—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
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- C08F136/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
- C08F136/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
- C08F136/04—Homopolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
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- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
- C08F8/32—Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
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- C08F8/00—Chemical modification by after-treatment
- C08F8/40—Introducing phosphorus atoms or phosphorus-containing groups
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
- C08L19/006—Rubber characterised by functional groups, e.g. telechelic diene polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Definitions
- the present invention relates to a modified conjugated diene-based polymer, a method for preparing the same, and a rubber composition comprising the same.
- the polymerization active site of the conjugated diene-based polymer obtained by anionic polymerization using organolithium can interact with the inorganic filler.
- the present invention has been devised to solve the problems of the prior art, and satisfies a high denaturation rate and a low glass transition temperature at the same time, a molecular weight distribution curve by gel permeation chromatography has a unimodal shape, and a narrow molecular weight of less than 1.70
- An object of the present invention is to provide a modified conjugated diene-based polymer having a distribution, a high Si content of 100 ppm or more, and excellent cold flow characteristics, and a method for preparing the same.
- the present invention improves viscoelastic properties and abrasion resistance at high and low temperatures at the same time, and in particular, while maintaining rolling resistance at an excellent level, cold flow is improved so that storage stability and formation stability are excellent, a rubber composition containing a modified conjugated diene-based polymer aims to provide
- the present invention is a modified conjugated diene-based polymer satisfying the conditions of a) to d) below, a) Gel permeation chromatography (GPC) has a unimodal shape, b) molecular weight distribution (PDI; MWD) is 1.00 or more and less than 1.70, c) cold flow is 1.00 or less, d) Si content is It provides a modified conjugated diene-based polymer that is 100 ppm or more based on the total weight of the modified conjugated diene-based polymer.
- GPC Gel permeation chromatography
- PDI molecular weight distribution
- MWD molecular weight distribution
- cold flow is 1.00 or less
- Si content is It provides a modified conjugated diene-based polymer that is 100 ppm or more based on the total weight of the modified conjugated diene-based polymer.
- the present invention comprises the steps of preparing an active polymer by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of a polymerization initiator (S1); and a step (S2) of reacting the active polymer prepared in step (S1) with a modifier, wherein the polymerization reaction (S1) and the modification reaction (S2) are carried out continuously, and the step (S1) is two groups
- the polymerization conversion rate in the first polymerization reactor of the polymerization reactor is 50% or less
- the modifier includes a first modifier and a second modifier, and the first modifier can react with the active polymer It provides a method for producing a modified conjugated diene-based polymer that is a modifier having more than 5 reactive functional groups, and the second modifier is a modifier having 5 or less reactive functional groups capable of reacting with the active polymer.
- the present invention provides a rubber composition comprising the modified conjugated diene-based polymer and a filler.
- the modified conjugated diene-based polymer according to the present invention simultaneously satisfies a high denaturation rate and a low glass transition temperature, a molecular weight distribution curve by gel permeation chromatography has a unimodal shape, a narrow molecular weight distribution of less than 1.70, and a high molecular weight distribution of 100 ppm or more. It has a Si content and may have excellent cold flow characteristics.
- the modified conjugated diene-based polymer according to the present invention has a narrow molecular weight distribution even though it is prepared according to a continuous polymerization process, so it can have excellent viscoelastic properties at both high and low temperatures when mixing the rubber composition, and has a low glass transition temperature, thereby improving abrasion resistance. It can be improved to an excellent level.
- the modified conjugated diene-based polymer of the present invention has improved cold flow characteristics, so that the storage stability and formation stability can be greatly improved while maintaining the rolling resistance at an excellent level when compounding the rubber composition.
- modified conjugated diene-based polymer according to the present invention includes a functional group derived from a modifier, tensile properties and viscoelastic properties may be further improved.
- Example 1 shows a molecular weight distribution curve by gel permeation chromatography (GPC) of the modified conjugated diene-based polymer of Example 1 according to an embodiment of the present invention.
- polymer' refers to a polymer compound prepared by polymerizing monomers, whether of the same or a different kind.
- the generic term polymer thus encompasses the term homopolymer, which is commonly used to refer to polymers prepared from only one monomer, and the term copolymer, which is commonly used to refer to polymers prepared from two or more monomers.
- 'vinyl content' refers to the butadiene contained at positions 1 and 2 in the polymer chain, based on the portion of the conjugated diene monomer (butadiene, etc.) (total amount of butadiene polymerized) in the polymer. refers to the percentage by mass (or weight) of
- the term 'monovalent hydrocarbon group' refers to a monovalent atomic group in which carbon and hydrogen are bonded, such as a monovalent alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkyl group containing one or more unsaturated bonds, and an aryl group. and the minimum number of carbon atoms of the substituent represented by the monovalent hydrocarbon may be determined according to the type of each substituent.
- the term 'divalent hydrocarbon group' refers to a divalent alkylene group, an alkenylene group, an alkynylene group, a cycloalkylene group, a cycloalkylene group containing one or more unsaturated bonds, and an arylene group, such as two groups in which carbon and hydrogen are bonded. It may mean a valent atomic group, and the minimum number of carbon atoms of the substituent represented by the divalent hydrocarbon may be determined according to the type of each substituent.
- the term 'alkyl group' may refer to a monovalent aliphatic saturated hydrocarbon, and linear alkyl groups such as methyl, ethyl, propyl and butyl and isopropyl, sec-butyl, ter It may mean including all branched alkyl groups such as tert-butyl and neopentyl.
- alkenyl group' may mean a monovalent aliphatic unsaturated hydrocarbon including one or two or more double bonds.
- the term 'alkynyl group' may mean a monovalent aliphatic unsaturated hydrocarbon including one or two or more triple bonds.
- the term 'alkylene group' may mean a divalent aliphatic saturated hydrocarbon such as methylene, ethylene, propylene, and butylene.
- the term 'aryl group' may mean a cyclic aromatic hydrocarbon, and also a monocyclic aromatic hydrocarbon in which one ring is formed, or a polycyclic aromatic hydrocarbon in which two or more rings are bonded. It may mean including all hydrocarbons.
- heterocyclic group' refers to a carbon atom in a cycloalkyl group or an aryl group in which one or more hetero atoms are substituted, for example, it may mean including both a heterocycloalkyl group or a heteroaryl group.
- compositions claimed through use of the term 'comprising' unless stated to the contrary, contain any additional additives, adjuvants, or compounds, whether polymeric or otherwise. may include
- the term 'consisting essentially of' excludes from the scope of any subsequent description any other component, step or procedure, except that is not essential to operability.
- the term 'consisting of' excludes any component, step or procedure not specifically described or listed.
- '1,2-vinyl bond content means that the content of vinyl (Vinyl) in each polymer is measured and analyzed using Varian VNMRS 500 MHz NMR, and when measuring NMR, the solvent is 1,1,2,2-tetra Chloroethane was used, the solvent peak was calculated as 6.0 ppm, 7.2 ⁇ 6.9 ppm is random styrene, 6.9 ⁇ 6.2 ppm is block styrene, 5.8 ⁇ 5.1 ppm is 1,4-vinyl and 1,2-vinyl, 5.1 ⁇ 4.5 ppm is measured by calculating the 1,2-vinyl bond content in the entire polymer using the peak of 1,2-vinyl.
- 'weight average molecular weight (Mw)', 'number average molecular weight (Mn)' and 'molecular weight distribution (MWD)' are measured through gel permeation chromatohraph (GPC) analysis, and measured by checking the molecular weight distribution curve.
- the molecular weight distribution (PDI, MWD, Mw/Mn) is calculated from each of the measured molecular weights.
- the GPC uses a combination of two PLgel Olexis (Polymer Laboratories) columns and one PLgel mixed-C (Polymer Laboratories) column, and when calculating molecular weight, the GPC standard material is PS (polystyrene).
- GPC measurement solvent is prepared by mixing tetrahydrofuran with 2 wt% of an amine compound, sample concentration of 1 to 2 mg/mL (diluted in THF), flow rate 1 mL/min, injection volume 100 uL, column temperature The condition of 40°C is applied, and the detector uses the Refractive index.
- Mooney viscosity (MV; ML1+4, @100°C MU) is measured using MV-2000 (ALPHA Technologies) at 100°C using a Rotor Speed of 2 ⁇ 0.02 rpm, a Large Rotor. After leaving the sample at room temperature (23 ⁇ 3°C) for more than 30 minutes, collect 27 ⁇ 3 g, fill it in the die cavity, and operate the platen to measure for 4 minutes.
- the glass transition temperature (Tg) is a modified conjugated diene-based polymer as a sample, in accordance with ISO 22768: 2006, using a differential scanning calorimeter (“DSC3200S” manufactured by McScience Co., Ltd.), helium 50 mL/ The DSC curve was recorded while the temperature was raised from -100°C to 10°C/min under the flow of minutes, and the peak top of the DSC differential curve was expressed as the glass transition temperature.
- DSC3200S differential scanning calorimeter
- cold flow uses a modified conjugated diene-based polymer as a sample, and after allowing the sample and the oven to achieve temperature equilibrium in an oven at a temperature of 50° C., it is left for 10 minutes to remove the protruding polymer sample to a steady state. make it become Thereafter, while extruding the polymer sample at a pressure of 34.6 kPa through a 1/4 inch orifice, the extrusion amount of the polymer sample flowing through the orifice was measured at 30 minute intervals for 90 minutes, and the extrusion amount was measured in grams per minute ( mg/min) and expressed as cold flow, and a smaller value indicates better shape stability (storage stability).
- 'Si content' is measured using an inductively coupled plasma emission analyzer (ICP-OES; Optima 7300DV) as an ICP analysis method.
- ICP-OES inductively coupled plasma emission analyzer
- Optima 7300DV an ICP analysis method.
- ICP-OES inductively coupled plasma emission analyzer
- about 0.7 g of the sample is placed in a platinum crucible (Pt crucible), and about 1 mL of concentrated sulfuric acid (98 wt%, Electronic grade) is added, heated at 300° C. for 3 hours, and the sample In an electric furnace (Thermo Scientific, Lindberg Blue M), after painting with the program of steps 1 to 3 below,
- step 1 initial temp 0°C, rate (temp/hr) 180°C/hr, temp(holdtime) 180°C (1hr)
- step 2 initial temp 180°C, rate (temp/hr) 85°C/hr, temp(holdtime) 370°C (1hr)
- step 3 initial temp 370°C, rate (temp/hr) 47°C/hr, temp(holdtime) 510°C (3hr)
- N content' also refers to the N content, for example, may be measured through an NSX analysis method, and the NSX analysis method is measured using a trace nitrogen quantitative analyzer (NSX-2100H).
- a trace nitrogen quantitative analyzer (NSX-2100H).
- the trace nitrogen quantitative analyzer Auto sampler, Horizontal furnace, PMT & Nitrogen detector
- ozonizer 300 ml/min Set the carrier gas flow rate to min, set the heater to 800°C, and wait for about 3 hours to stabilize the analyzer.
- a calibration curve in the range of 5 ppm, 10 ppm, 50 ppm, 100 ppm and 500 ppm was prepared using Nitrogen standard (AccuStandard S-22750-01-5 ml), and the area corresponding to each concentration was obtained. Then, draw a straight line using the ratio of concentration to area. Thereafter, a ceramic boat containing 20 mg of the sample is placed on the auto sampler of the analyzer to obtain an area, and the N content is calculated using the area of the obtained sample and the calibration curve. At this time, the sample is a modified conjugated diene-based polymer in which the solvent is removed by putting it in hot water heated with steam and stirring, and the residual monomer, residual modifier, and oil are removed.
- the present invention provides a modified conjugated diene-based polymer capable of simultaneously improving the compounding properties of the rubber composition, in particular, viscoelastic properties, abrasion resistance, storage stability, and formation stability by being complexly applied to a rubber composition by having a specific range of physical properties.
- a) the molecular weight distribution curve by gel permeation chromatography has a unimodal shape
- b) the molecular weight distribution (PDI; MWD) is 1.00 or more, less than 1.70
- c) cold flow is 1.00 or less
- d) Si content is 100 ppm or more based on the total weight of the modified conjugated diene-based polymer To provide a modified conjugated diene-based polymer characterized by providing do.
- the modified conjugated diene-based polymer may include a repeating unit derived from a conjugated diene-based monomer and a functional group derived from a modifier, wherein the repeating unit derived from the conjugated diene-based monomer is polymerized by the conjugated diene-based monomer. It may mean a repeating unit formed at the time, and the functional group derived from the modifier is a functional group derived from the modifier present at at least one end of the active polymer through a reaction or coupling between an active polymer prepared by polymerization of a conjugated diene-based monomer and a modifier. can mean
- the conjugated diene-based monomer is 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, piperylene, 3-butyl-1,3-octadiene, isoprene, 2 -Phenyl-1,3-butadiene and 2-halo-1,3-butadiene (halo means a halogen atom) may be at least one selected from the group consisting of.
- the modified conjugated diene-based polymer may be a copolymer further comprising a repeating unit derived from an aromatic vinyl-based monomer, in this case, the amount of the repeating unit derived from the aromatic vinyl-based monomer is 30 wt% or more, or 30 wt% to 50 wt% may include
- the present invention may not include a repeating unit derived from an aromatic vinyl-based monomer.
- the aromatic vinyl monomer is, for example, styrene, ⁇ -methylstyrene, 3-methylstyrene, 4-methylstyrene, 4-propylstyrene, 1-vinylnaphthalene, 4- It may be at least one selected from the group consisting of cyclohexylstyrene, 4-(p-methylphenyl)styrene, and 1-vinyl-5-hexylnaphthalene.
- the modified conjugated diene-based polymer may be a copolymer further comprising a repeating unit derived from a diene-based monomer having 1 to 10 carbon atoms together with the repeating unit derived from the conjugated diene-based monomer.
- the repeating unit derived from the diene-based monomer may be a repeating unit derived from a diene-based monomer different from the conjugated diene-based monomer, and the diene-based monomer different from the conjugated diene-based monomer may be, for example, 1,2-butadiene. .
- the modified conjugated diene-based polymer is a copolymer further comprising a diene-based monomer
- the modified conjugated diene-based polymer contains more than 0% by weight to 1% by weight of the repeating unit derived from the diene-based monomer, more than 0% by weight to 0.1% by weight, It may contain more than 0 wt% to 0.01 wt%, or more than 0 wt% to 0.001 wt%, and has the effect of preventing gel formation within this range.
- the modified conjugated diene-based polymer according to an embodiment of the present invention has a number average molecular weight (Mn) of 1,000 g/mol to 2,000,000 g/mol, 10,000 g/mol to 1,000,000 g/mol, or 100,000 g/mol to 1,000,000 g /mol, preferably 200,000 g/mol to 1,000,000 g/mol, or 300,000 g/mol to 700,000 g/mol. Within this range, there is an excellent effect of rolling resistance and wet road resistance.
- Mn number average molecular weight
- the modified conjugated diene-based polymer may have a molecular weight distribution (PDI; MWD; Mw/Mn) of 1.00 to less than 1.70, or 1.10 to less than 1.70, and has excellent tensile properties and viscoelastic properties within this range. , there is an effect excellent in the balance between the respective physical properties.
- the molecular weight distribution curve by gel permeation chromatography (GPC) has a unimodal shape, which is the molecular weight distribution shown in the polymer polymerized by continuous polymerization. As such, it may mean that the modified conjugated diene-based polymer has uniform properties.
- the modified conjugated diene-based polymer according to an embodiment of the present invention is prepared by continuous polymerization, and has a molecular weight distribution curve in a unimodal form, and may have a molecular weight distribution of 1.00 or more and less than 1.70, and the physical properties are simultaneously It may be possible to achieve excellent machinability, but also excellent levels of viscoelastic properties such as rolling resistance and wet road resistance at the same time.
- the modified conjugated diene-based polymer may have a Si content of 100 ppm or more, 100 ppm to 10,000 ppm, 100 ppm to 5,000 ppm, 100 ppm to 1,000 ppm, or 100 ppm to 500 ppm, based on the weight, in this range
- the Si content may mean the content of Si atoms present in the modified conjugated diene-based polymer.
- the Si atom may be derived from a functional group derived from a modifier.
- the Si content may be measured by, for example, an ICP analysis method, and the ICP analysis method may be measured using an inductively coupled plasma emission analyzer (ICP-OES; Optima 7300DV).
- ICP-OES inductively coupled plasma emission analyzer
- about 0.7 g of the sample is placed in a platinum crucible (Pt crucible), and about 1 mL of concentrated sulfuric acid (98 wt%, Electronic grade) is added, heated at 300° C. for 3 hours, and the sample In an electric furnace (Thermo Scientific, Lindberg Blue M), after painting with the program of steps 1 to 3 below,
- step 1 initial temp 0°C, rate (temp/hr) 180°C/hr, temp(holdtime) 180°C (1hr)
- step 2 initial temp 180°C, rate (temp/hr) 85°C/hr, temp(holdtime) 370°C (1hr)
- step 3 initial temp 370°C, rate (temp/hr) 47°C/hr, temp(holdtime) 510°C (3hr)
- the sample is a modified conjugated diene-based polymer in which the solvent is removed by putting it in hot water heated with steam and stirring, and the residual monomer, residual modifier, and oil are removed.
- the modified conjugated diene-based polymer according to an embodiment of the present invention may have a cold flow of 1.00 or less, 0.90 or less, 0.85 or less, or 0.80 or less.
- the lower limit is not particularly limited, 0.10 or more, 0.30 or more, 0.50 or more, or 0.60 or more may be preferable in terms of preventing deterioration of other viscoelastic properties and mechanical properties.
- the modified conjugated diene-based polymer may be one that satisfies the aforementioned molecular weight distribution curve, molecular weight, molecular weight distribution, and Si content while simultaneously satisfying cold flow within the aforementioned range.
- the cold flow may be an indicator of storage stability and formation stability of the modified conjugated diene-based polymer, and specifically, as the cold flow value decreases, it may mean that the rubber composition including the polymer has excellent storage stability and formation stability. If the cold flow of the polymer exceeds 1.00, storage stability and formation stability may be greatly deteriorated, and quality may be affected when stored or used in combination with a rubber composition.
- the polymer chain mainly has a linear structure.
- the proportion of the polymer chains having a linear structure is high, the cold flow increases, thereby increasing the flowability, thereby adversely affecting storage stability and shape stability, and may also affect the quality during storage and use by compounding the rubber composition.
- a modifier capable of forming a branched structure deterioration of cold flow properties can be partially prevented, but there may be a problem that the rolling resistance is greatly reduced when the rubber composition is compounded due to an increase in branched chains.
- the polymerization product is mainly composed of linear polymer chains and some chains form a branched structure to maintain an excellent level of rolling resistance when compounding the rubber composition, and to have a low cold flow value. It is characterized in that it provides a modified conjugated diene-based polymer.
- a modified conjugated diene-based polymer having a low cold flow value and excellent rolling resistance when compounding a rubber composition is expressed by mixing and using two modifiers having different numbers of reactive functional groups that can react with the active polymer as a modifier. It may be Specifically, as described later, the above-described physical properties may be achieved by mixing and using a modifier having 5 or less reactive functional groups and a modifier having more than 5 reactive functional groups.
- the modified conjugated diene-based polymer according to an embodiment of the present invention may have a glass transition temperature (Tg) of -100°C to -50°C, preferably -90°C to -60°C.
- Tg glass transition temperature
- the modified conjugated diene-based polymer may satisfy the aforementioned molecular weight distribution curve, molecular weight, molecular weight distribution, Si content, and cold flow while simultaneously satisfying the glass transition temperature range in the aforementioned range.
- the glass transition temperature may be an indicator of wear properties in a rubber composition including a modified conjugated diene-based polymer, and specifically, the lower the glass transition temperature, the greater the abrasion resistance when compounded into the rubber composition.
- the glass transition temperature of the modified conjugated diene-based polymer meets -100°C to -50°C, the tensile properties and viscoelastic properties are excellent, and the effect of greatly improving the abrasion resistance is there is.
- the modified conjugated diene-based polymer may have an N content of 50 ppm or more, 100 ppm or more, 100 ppm to 10,000 ppm, or 100 ppm to 5,000 ppm based on the total weight, including the modified conjugated diene-based polymer within this range There is an effect excellent in mechanical properties such as tensile properties and viscoelastic properties of the rubber composition.
- the N content may mean the content of N atoms present in the modified conjugated diene-based polymer, wherein the N atoms may be derived from a functional group derived from a modifier.
- the N content may be measured by, for example, an NSX analysis method, and the NSX analysis method may be measured using a trace nitrogen quantitative analyzer (NSX-2100H).
- NSX-2100H a trace nitrogen quantitative analyzer
- the trace nitrogen quantitative analyzer when using the trace nitrogen quantitative analyzer, turn on the trace nitrogen quantitative analyzer (Auto sampler, Horizontal furnace, PMT & Nitrogen detector), Ar 250 ml/min, O 2 350 ml/min, ozonizer 300 ml/min
- the carrier gas flow rate was set to min, and the analyzer was stabilized by waiting for about 3 hours after setting the heater to 800°C.
- a calibration curve in the range of 5 ppm, 10 ppm, 50 ppm, 100 ppm and 500 ppm was prepared using Nitrogen standard (AccuStandard S-22750-01-5 ml), and the area corresponding to each concentration was obtained Afterwards, a straight line was drawn using the ratio of concentration to area. Thereafter, a ceramic boat containing 20 mg of the sample was placed on the auto sampler of the analyzer and measured to obtain an area. The N content was calculated using the area of the obtained sample and the calibration curve.
- the sample used in the NSX analysis method is a modified conjugated diene-based polymer sample obtained by removing the solvent by putting it in hot water heated with steam and stirring, and may be a sample from which residual monomers and residual denaturants are removed.
- oil if oil is added to the above sample, it may be a sample after oil is extracted (removed).
- the modified conjugated diene-based polymer may have a Mooney viscosity of 30 or more, 40 to 150, or 40 to 140 at 100° C., and has excellent processability and productivity within this range.
- the modified conjugated diene-based polymer according to an embodiment of the present invention may preferably satisfy that the content of 1,2-vinyl bonds is 30.0 wt% or less based on the total weight of the polymer.
- the vinyl content may mean the weight % of the 1,2-added conjugated diene-based monomer, not the 1,4-added, with respect to the conjugated diene-based copolymer composed of a monomer having a vinyl group and an aromatic vinyl-based monomer, and during polymerization It may be affected by the reaction environment at the time the polymerization reaction ends and the time at which the polymerization reaction ends.
- the 1,2-vinyl bonding content may be 5 to 30% by weight, preferably 5 to 15% by weight, and depending on the 1,2-vinyl bonding content, wear characteristics and rolling resistance characteristics are affected.
- the 1,2-vinyl bond content is 30% by weight or less, better abrasion resistance can be secured, so when preparing the modified conjugated diene-based polymer, it is recommended that the 1,2-vinyl bond content satisfy the above range. may be desirable.
- the modified conjugated diene-based polymer according to the present invention satisfies all of the above conditions at the same time, it has a high modification rate and is applied to the rubber composition to have excellent viscoelastic properties, abrasion resistance, storage stability and shape stability of the rubber composition. level can be improved.
- the modified conjugated diene-based polymer according to an embodiment of the present invention is a polymerization temperature, polymerization time, to satisfy the above-described unimodal molecular weight distribution curve shape, molecular weight, molecular weight distribution, glass transition temperature, cold flow and Si content, It may be manufactured through a manufacturing method in which the amount of reactants used, etc. is controlled.
- the present invention comprises the steps of preparing an active polymer by polymerizing a conjugated diene-based monomer in a hydrocarbon solvent in the presence of a polymerization initiator (S1); and a step (S2) of reacting the active polymer prepared in step (S1) with a modifier, wherein the polymerization reaction (S1) and the modification reaction (S2) are carried out continuously, and the step (S1) is two groups It is carried out in the above polymerization reactor, the polymerization conversion rate in the first polymerization reactor of the polymerization reactor is 50% or less, and the modifier includes at least two modifiers having different numbers of reactive functional groups.
- a manufacturing method is provided.
- the denaturant includes a first denaturant and a second denaturant, wherein the first denaturant is a denaturant having more than 5 reactive functional groups capable of reacting with the active polymer, and the second denaturant is capable of reacting with the active polymer. It may be a denaturant having 5 or less reactive functional groups.
- modified conjugated diene-based polymer may be prepared by the above method.
- the modifier for modifying the modified conjugated diene-based polymer may be, for example, a silica affinity modifier, and the modified conjugated diene-based polymer may include a unit derived from the modifier at at least one end of the chain.
- the modifier may be a modifier containing a silica-affinity functional group in a compound used as a modifier, and the silica-affinity functional group has excellent affinity with a filler, particularly a silica-based filler, and a functional group derived from the silica-based filler and the modifier. It may mean a functional group capable of interaction between them.
- the modifier may be, for example, an alkoxysilane-based modifier, and a specific example may be an alkoxysilane-based modifier containing at least one hetero atom such as a nitrogen atom, an oxygen atom, or a sulfur atom.
- a substitution reaction between an anionic active site located at one end of the active polymer and the alkoxy group of the alkoxysilane-based modifier one end of the active polymer is modified or coupled to a silyl group. can be carried out.
- the reactive functional group capable of reacting with the active polymer may specifically include an alkoxy group, and specifically, the alkoxy group may be bonded to a silicon (Si) atom.
- the denaturant may include at least two denaturants, a first denaturant and a second denaturant, and specifically, the first denaturant has five reactive functional groups capable of reacting with the active polymer.
- the first denaturant may be a denaturant greater than
- the second denaturant may be a denaturant having 5 or less reactive functional groups capable of reacting with the active polymer.
- the first denaturant may include a compound represented by the following Chemical Formula 1
- the second denaturant may include at least one compound of the compounds represented by the following Chemical Formulas 2 and 3.
- R a1 and R a4 may be each independently a single bond or an alkylene group having 1 to 10 carbon atoms
- R a2 and R a3 may be each independently an alkyl group having 1 to 10 carbon atoms
- R a5 is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, a divalent, trivalent or tetravalent alkylsilyl group substituted with an alkyl group having 1 to 10 carbon atoms, N, O, and S It contains one or more heteroatoms selected from the group consisting of may be a 5-membered heterocyclic group having 2 to 4 carbon atoms, wherein the heterocyclic group may be unsubstituted or substituted with an alkyl group having 1 to 10 carbon atoms or a (trialkoxysilyl)alkyl group, and the (trialkoxysilyl) In the alkyl group, the alkyl group may be an alkyl group having 1 to 10 carbon atoms, the
- the compound represented by Formula 1 may be a compound represented by Formula 1-1 below.
- R d1 may be hydrogen or an alkyl group having 1 to 10 carbon atoms
- R d2 to R d4 may be each independently an alkylene group having 1 to 10 carbon atoms
- R d5 to R d8 are each independently may be an alkyl group having 1 to 10 carbon atoms
- a 3 is or may be, wherein R d9 to R d12 may be each independently hydrogen or an alkyl group having 1 to 10 carbon atoms, and t 1 and t 2 may be 3 independently of each other.
- R a1 and R a4 may be each independently a single bond or an alkylene group having 1 to 5 carbon atoms
- R a2 and R a3 may be each independently an alkyl group having 1 to 5 carbon atoms
- R a5 is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a tetravalent alkylsilyl group substituted with an alkyl group having 1 to 5 carbon atoms, or 1 or more heteroatoms selected from the group consisting of N, O and S having 2 to 4 carbon atoms may be a 5-membered heterocyclic group of, wherein the heterocyclic group is unsubstituted or substituted with an alkyl group having 1 to 5 carbon atoms or a (trialkoxysilyl)alkyl group, and the alkyl group in the (trialkoxysilyl)alkyl group has 1 to carbon atoms It may be an alkyl group of 5, and the alkoxy group may
- the compound represented by Formula 1 may be specifically a compound represented by Formula 1-1, wherein R d1 in Formula 1-1 is hydrogen or a compound having 1 to 5 carbon atoms. may be an alkyl group, R d2 to R d4 may be each independently an alkylene group having 1 to 5 carbon atoms, R d5 to R d8 may be each independently an alkyl group having 1 to 5 carbon atoms, A 3 is or may be, wherein R d9 to R d12 may be each independently hydrogen or an alkyl group having 1 to 5 carbon atoms.
- the compound represented by Formula 1 is N,N-bis(3-(trimethoxysilyl)propyl)-methyl-1-amine(N,N-bis(3-(trimethoxysilyl)propyl)-methyl -1-amine), N,N-bis(3-(triethoxysilyl)propyl)-methyl-1-amine (N,N-bis(3-(triethoxysilyl)propyl)-methyl-1-amine), Tri(trimethoxysilyl)amine), tris(3-(trimethoxysilyl)propyl)amine), N-(3-(1H- imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1-amine (N-(3-(1H-imidazol-1- yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl
- R b1 may be a single bond or an alkylene group having 1 to 10 carbon atoms
- R b2 and R b3 may be each independently an alkyl group having 1 to 10 carbon atoms or -[R b6 O] n3 -R b7 and R b4 may be a single bond, an alkylene group having 1 to 10 carbon atoms, or -[R b6 O] n3
- R b5 is a hydrogen atom, an alkyl group having 1 to 10 carbon atoms, or an alkyl group having 1 to 10 carbon atoms substituted It may be a divalent, trivalent or tetravalent alkylsilyl group
- R b6 may be an alkylene group having 1 to 10 carbon atoms
- R b7 may be an alkyl group having 1 to 10 carbon atoms
- n 1 may be an integer of 1 to 3 and n 2 may be an integer of 0 to 2
- n 3 may be an integer of
- R b1 may be a single bond or an alkylene group having 1 to 5 carbon atoms
- R b2 and R b3 are each independently an alkyl group having 1 to 5 carbon atoms or -[R b6 O] n3 - may be R b7
- R b4 may be a single bond, an alkylene group having 1 to 5 carbon atoms, or -[R b6 O] n3
- R b5 may be a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or an alkyl group having 1 to 5 carbon atoms It may be a tetravalent alkylsilyl group substituted with an alkyl group
- R b6 may be an alkylene group having 1 to 5 carbon atoms
- R b7 may be an alkyl group having 1 to 5 carbon atoms
- n 1 may be an integer of 2 or 3
- n 2 may be an integer from 0 to 2
- n 3 may
- the compound represented by Formula 2 is N,N-bis(3-(dimethoxy(methyl)silyl)propyl)-methyl-1-amine (N,N-bis(3-(dimethoxy(methyl)) silyl)propyl)-methyl-1-amine), N,N-bis(3-(diethoxy(methyl)silyl)propyl)-methyl-1-amine (N,N-bis(3-(diethoxy(methyl) silyl)propyl)-methyl-1-amine), N,N-diethyl-3-(trimethoxysilyl)propan-1-amine (N,N-diethyl-3-(trimethoxysilyl)propan-1-amine) , N,N-diethyl-3-(triethoxysilyl)propan-1-amine (N,N-diethyl-3-(triethoxysilyl)propan-1-amine), N,N-bis(3-(die Toxy (methyl) silyl) propyl)
- a 1 and A 2 may each independently be an alkylene group having 1 to 20 carbon atoms
- R c1 to R c4 may be independently of each other an alkyl group having 1 to 20 carbon atoms
- L 1 to L 4 are Each independently may be a divalent, trivalent or tetravalent alkylsilyl group substituted with an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, or an alkyl group having 1 to 10 carbon atoms.
- a 1 and A 2 may each independently be an alkylene group having 1 to 10 carbon atoms
- R c1 to R c4 may be each independently an alkyl group having 1 to 10 carbon atoms
- L 1 to L 4 may be each independently a tetravalent alkylsilyl group substituted with an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 12 carbon atoms, or an alkyl group having 1 to 5 carbon atoms.
- the compound represented by Formula 3 is 3,3'-(1,1,3,3-tetramethoxydisiloxane-1,3-diyl)bis(N,N-dimethylpropan-1-amine) (3,3'-(1,1,3,3-tetramethoxydisiloxane-1,3-diyl)bis(N,N-dimethylpropan-1-amine)), 3,3'-(1,1,3,3 -Tetraethoxydisiloxane-1,3-diyl)bis(N,N-dimethylpropan-1-amine)(3,3'-(1,1,3,3-tetraethoxydisiloxane-1,3-diyl)bis (N,N-dimethylpropan-1-amine), 3,3'-(1,1,3,3-tetrapropoxydisiloxane-1,3-diyl)bis(N,N-dimethylpropan-1-amine) (3,3'-(1,1,3,3,3-te
- the modified conjugated diene-based polymer according to an embodiment of the present invention is a polymer comprising a denaturant-derived unit represented by Formula 1 and a denaturant-derived unit represented by Formula 2, a denaturant-derived unit represented by Formula 1, and the above formula It may be a polymer including a denaturant-derived unit represented by 3 or a mixture thereof.
- the denaturant is the first denaturant and the second denaturant are 1:9 to 5:5, preferably 1:9 to 4:6, more preferably 1:9 to 3 It may be included in an equivalent ratio of :7.
- the content ratio of the modifier is satisfied, the rolling resistance and cold flow can be further improved.
- the hydrocarbon solvent is not particularly limited, but may be, for example, at least one selected from the group consisting of n-pentane, n-hexane, n-heptane, isooctane, cyclohexane, toluene, benzene and xylene.
- the modification initiator may include an organometallic compound, wherein the organometallic compound is 0.01 to 10 mmol, 0.05 to 5 mmol, 0.1 to 0.1 mmol based on 100 g of the total monomer. 2 mmol, 0.1 mmol to 1 mmol, or 0.15 to 0.8 mmol.
- the organometallic compound is, for example, methyllithium, ethyllithium, propyllithium, isopropyllithium, n-butyllithium, s-butyllithium, t-butyllithium, hexyllithium, n-decyllithium, t-octyllithium, phenyl Lithium, 1-naphthyllithium, n-eicosyllithium, 4-butylphenyllithium, 4-tolylithium, cyclohexyllithium, 3,5-di-n-heptylcyclohexyllithium, 4-cyclopentyllithium, naphthyl It may be at least one selected from the group consisting of sodium, naphthyl potassium, lithium alkoxide, sodium alkoxide, potassium alkoxide, lithium sulfonate, sodium sulfonate, potassium sulfonate, lithium amide, sodium, nap
- the polymerization in step (S1) may be, for example, anionic polymerization, and as a specific example, living anionic polymerization having an anionic active site at the polymerization end by an anion-based growth polymerization reaction.
- the polymerization in step (S1) may be elevated temperature polymerization, isothermal polymerization, or constant temperature polymerization (adiabatic polymerization), and the constant temperature polymerization includes a step of polymerization by its own heat of reaction without optionally applying heat after the organometallic compound is added.
- the temperature rise polymerization may mean a polymerization method to increase the temperature by optionally adding heat after the addition of the organometallic compound, the isothermal polymerization is heat after adding the organometallic compound It may refer to a polymerization method in which the temperature of the polymer is maintained constant by increasing heat by adding or taking heat away.
- the polymerization in step (S1) may be carried out by further including a diene-based compound having 1 to 10 carbon atoms in addition to the conjugated diene-based monomer, and in this case, a gel is formed on the reactor wall during long-term operation. This has the effect of preventing its formation.
- the diene-based compound may be, for example, 1,2-butadiene.
- the polymerization of step (S1) may be carried out, for example, in a temperature range of 100° C. or less, 50° C. to 100° C., or 50° C. to 80° C., and within this range, the conversion rate of the polymerization reaction can be increased, and the Mooney viscosity, number average molecular weight, and molecular weight distribution in the aforementioned range while controlling the molecular weight distribution. Cold flow and glass transition temperature can be satisfied, and there is an excellent effect of improving physical properties.
- the active polymer prepared by the step (S1) may refer to a polymer in which a polymer anion and an organometallic cation are bound.
- the method for producing the modified conjugated diene-based polymer may be carried out by a continuous polymerization method in a plurality of reactors including two or more polymerization reactors and a modification reactor.
- step (S1) may be continuously performed in two or more polymerization reactors including the first reactor, and the number of polymerization reactors may be flexibly determined according to reaction conditions and environment.
- the continuous polymerization method may refer to a reaction process in which reactants are continuously supplied to a reactor and the generated reaction products are continuously discharged. In the case of the continuous polymerization method, there is an effect of excellent productivity and processability, and excellent uniformity of the produced polymer.
- the polymerization conversion in the first reactor may be 50% or less, 10% to 50%, or 20% to 50%.
- Mooney viscosity, number average molecular weight, and molecular weight distribution in the above-described range It can satisfy cold flow and glass transition temperature, so there is an excellent effect of improving physical properties.
- the polymerization conversion rate may be adjusted according to the reaction temperature, the residence time of the reactor, and the like.
- the polymerization conversion rate may be determined, for example, by measuring the concentration of solids in a polymer solution containing the polymer during polymerization of the polymer.
- a cylindrical vessel is mounted at the outlet of each polymerization reactor to secure the polymer solution to be constant.
- a positive polymer solution is filled in a cylindrical container, the cylindrical container is separated from the reactor, the weight (A) of the cylinder filled with the polymer solution is measured, and the polymer solution filled in the cylindrical container is placed in an aluminum container, For example, transfer to an aluminum dish and measure the weight (B) of the cylindrical container from which the polymer solution has been removed, the aluminum container containing the polymer solution is dried in an oven at 140° C. for 30 minutes, and the weight (C) of the dried polymer is measured After the measurement, it may be calculated according to Equation 1 below.
- the polymer polymerized in the first reactor may be sequentially transferred to the polymerization reactor before the modification reactor, and polymerization may proceed until the polymerization conversion ratio is 95% or more.
- the second reactor or the polymerization conversion rate for each reactor from the second reactor to the polymerization reactor before the modification reactor may be appropriately adjusted for each reactor to control the molecular weight distribution.
- the residence time of the polymer in the first reactor may be 1 minute to 40 minutes, 1 minute to 30 minutes, or 5 minutes to 30 minutes, and within this range, the polymerization It is easy to control the conversion rate, and accordingly, Mooney viscosity, number average molecular weight, and molecular weight distribution in the above-mentioned ranges. It can satisfy cold flow and glass transition temperature, so there is an excellent effect of improving physical properties.
- the term 'polymer' means that step (S1) or step (S2) is completed, prior to obtaining an active polymer or a modified conjugated diene-based polymer, during step (S1), polymerization is carried out in each reactor It may mean an intermediate in the form of a polymer being used, and may mean a polymer having a polymerization conversion of less than 90% in which polymerization is being carried out in the reactor.
- the polymerization in step (S1) may be carried out including a polar additive, and the polar additive may be added in a proportion of 0.001 g to 50 g, or 0.002 g to 0.1 g based on 100 g of the total monomer. .
- the polar additive may be added in a ratio of more than 0 g to 1 g, 0.01 g to 1 g, or 0.1 g to 0.9 g based on 100 g of the total organometallic compound.
- the polar additive is, for example, tetrahydrofuran, ditetrahydrofurylpropane, diethyl ether, cyclopentyl ether, dipropyl ether, ethylene methyl ether, ethylene dimethyl ether, diethyl glycol, dimethyl ether, tertiary butoxyethoxyethane , bis(3-dimethylaminoethyl)ether, (dimethylaminoethyl)ethylether, trimethylamine, triethylamine, tripropylamine, and tetramethylethylenediamine may be at least one selected from the group consisting of, preferably triethyl It may be an amine or tetramethylethylenediamine, and when the polar additive is included, when copolymerizing a conjugated diene-based monomer, or a conjugated diene-based monomer and an aromatic vinyl-based monomer, the random copolymer is facilitated by compensating for
- the denaturant in the reaction of step (S2), may be used in an amount of 0.01 mmol to 10 mmol based on 100 g of the total monomer.
- the modifier may be used in a molar ratio of 1:0.1 to 10, 1:0.1 to 5, or 1:0.1 to 1:3 based on 1 mole of the organometallic compound of the modification initiator in step (S1). there is. Since the molar ratio of the modifier and the organometallic compound, and the amount of the modifier input to the monomer may substantially affect the glass transition temperature of the polymer to be prepared, it is preferable to select and apply an appropriate ratio within the above range as much as possible.
- the denaturant may include at least two kinds of denaturant.
- the modifier may include both a modifier capable of forming a polymer chain into a linear structure after modification and a modifier capable of forming a polymer chain into a branched structure.
- linear polymer chains and branched polymer chains may coexist in the prepared polymer, and thus the cold flow of the polymer may be lowered.
- a polymer that satisfies all of the physical properties of can be prepared.
- a rubber composition comprising the modified conjugated diene-based polymer.
- the rubber composition may include the modified conjugated diene-based polymer in an amount of 10 wt% or more, 10 wt% to 100 wt%, or 20 wt% to 90 wt%, within this range, tensile strength, abrasion resistance, etc. It has excellent mechanical properties and an excellent balance between the physical properties.
- the rubber composition may further include other rubber components as needed in addition to the modified conjugated diene-based polymer, wherein the rubber component may be included in an amount of 90% by weight or less based on the total weight of the rubber composition.
- the other rubber component may be included in an amount of 1 to 900 parts by weight based on 100 parts by weight of the modified conjugated diene-based polymer.
- the rubber component may be, for example, natural rubber or synthetic rubber, and specific examples thereof include natural rubber (NR) including cis-1,4-polyisoprene; Modified natural rubbers such as epoxidized natural rubber (ENR), deproteinized natural rubber (DPNR), and hydrogenated natural rubber, which are modified or refined of the general natural rubber; Styrene-butadiene copolymer (SBR), polybutadiene (BR), polyisoprene (IR), butyl rubber (IIR), ethylene-propylene copolymer, polyisobutylene-co-isoprene, neoprene, poly(ethylene-co-) propylene), poly(styrene-co-butadiene), poly(styrene-co-isoprene), poly(styrene-co-isoprene-co-butadiene), poly(isoprene-co-butadiene), poly(ethylene-co-propylene) -co
- the rubber composition may include, for example, 0.1 parts by weight to 200 parts by weight, or 10 parts by weight to 120 parts by weight of a filler based on 100 parts by weight of the modified conjugated diene-based polymer of the present invention.
- the filler may be, for example, a silica-based filler, and specific examples thereof include wet silica (hydrous silicic acid), dry silica (silicic anhydride), calcium silicate, aluminum silicate or colloidal silica, and preferably, the effect of improving the breaking properties and wet Wet silica may be the most excellent in compatibility with wet grip.
- the rubber composition may further include a carbon black-based filler if necessary.
- silane coupling agent for improving reinforcing properties and low heat generation may be used together, and as a specific example, the silane coupling agent is bis(3-triethoxysilylpropyl)tetrasulfide , bis(3-triethoxysilylpropyl)trisulfide, bis(3-triethoxysilylpropyl)disulfide, bis(2-triethoxysilylethyl)tetrasulfide, bis(3-trimethoxysilyl) propyl) tetrasulfide, bis(2-trimethoxysilylethyl)tetrasulfide, 3-mercaptopropyltrimethoxysilane, 3-mercaptopropyltriethoxysilane, 2-mercaptoethyltrimethoxysilane, 2-Mercaptoethyltriethoxysilane, 3-trimethoxys
- it may be bis(3-triethoxysilylpropyl)polysulfide or 3-trimethoxysilylpropylbenzothiazyltetrasulfide.
- a modified conjugated diene-based polymer in which a functional group with high affinity for silica is introduced is used as a rubber component, so the compounding amount of the silane coupling agent is a common may be reduced than the case, and accordingly, the silane coupling agent may be used in an amount of 1 to 20 parts by weight, or 5 to 15 parts by weight, based on 100 parts by weight of silica, and within this range, the effect as a coupling agent is not significant. It has the effect of preventing the gelation of the rubber component while being sufficiently exhibited.
- the rubber composition according to an embodiment of the present invention may be crosslinkable with sulfur, and may further include a vulcanizing agent.
- the vulcanizing agent may be specifically sulfur powder, and may be included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the rubber component. It has an excellent effect.
- the rubber composition according to an embodiment of the present invention includes, in addition to the above components, various additives commonly used in the rubber industry, specifically, a vulcanization accelerator, process oil, plasticizer, anti-aging agent, anti-scorch agent, zinc white, It may further include stearic acid, a thermosetting resin, or a thermoplastic resin.
- the vulcanization accelerator is, for example, a thiazole-based compound such as M (2-mercaptobenzothiazole), DM (dibenzothiazyl disulfide), CZ (N-cyclohexyl-2-benzothiazyl sulfenamide), or DPG
- a thiazole-based compound such as M (2-mercaptobenzothiazole), DM (dibenzothiazyl disulfide), CZ (N-cyclohexyl-2-benzothiazyl sulfenamide), or DPG
- a guanidine-based compound such as (diphenylguanidine) may be used, and may be included in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the rubber component.
- the process oil acts as a softener in the rubber composition, and may be, for example, a paraffinic, naphthenic, or aromatic compound, and when considering tensile strength and abrasion resistance, aromatic process oil price, hysteresis loss and low temperature characteristics Naphthenic or paraffinic process oils may be used.
- the process oil may be included in an amount of 100 parts by weight or less based on 100 parts by weight of the rubber component, for example, and has an effect of preventing deterioration of the tensile strength and low heat generation (low fuel efficiency) of the vulcanized rubber within this range.
- the antioxidant is, for example, N-isopropyl-N'-phenyl-p-phenylenediamine, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine, 6-ethoxy-2 ,2,4-trimethyl-1,2-dihydroquinoline, or a high-temperature condensate of diphenylamine and acetone, etc., may be used in an amount of 0.1 to 6 parts by weight based on 100 parts by weight of the rubber component.
- the rubber composition according to an embodiment of the present invention can be obtained by kneading using a kneader such as a Banbury mixer, a roll, an internal mixer, etc. according to the compounding prescription, and has low heat generation and wear resistance by a vulcanization process after molding processing. This excellent rubber composition can be obtained.
- a kneader such as a Banbury mixer, a roll, an internal mixer, etc.
- the rubber composition may be used for each member of the tire, such as a tire tread, under tread, side wall, carcass coated rubber, belt coated rubber, bead filler, chaff, or bead coated rubber, vibration proof rubber, belt conveyor, hose, etc. It may be useful in the manufacture of various industrial rubber products of
- the present invention provides a tire manufactured using the rubber composition.
- the tire may include a tire or a tire tread.
- a 1,3-butadiene solution in which 60 wt% of 1,3-butadiene is dissolved in n-hexane is injected into the second reactor at a rate of 0.74 kg/h, and the temperature of the second reactor is maintained at 65° C.
- the polymerization conversion rate reached 95% or more by continuing polymerization, the polymer was transferred from the second reactor to the third reactor through a transfer pipe.
- Propyl)propan-1-amine N-(3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1-amine
- 20 N,N-bis(3-(dimethoxy(methyl)silyl)propyl)-methyl-1-amine N,N-bis(3-(dimethoxy (methyl)silyl)propyl)-methyl-1-amine) in which 20 wt% of a solution was mixed in an equivalent ratio of 0.3:0.7 was continuously supplied to carry out the denaturation reaction (n-butyllithium: total amount of denaturant)
- Example 1 N-(3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3- in n-hexane as the first denaturant in the third reactor (triethoxysilyl)propyl)propan-1-amine(N-(3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1 -amine) is dissolved in 20% by weight and N-(3,6,9,12-tetraoxahexadecyl)-N-(3-(triethoxysilyl)propyl) in n-hexane as a second modifier -3,6,9,12-tetrahexadecan-1-amine) (N-(3,6,9,12-tetraoxahexadecyl)-N-(3-(trieth
- Example 1 tris (3- (trimethoxysilyl) propyl) amine (tris (3- (trimethoxysilyl) propyl) amine) in n-hexane as a first modifier in the third reactor was dissolved in 20 wt% N,N-bis(3-(dimethoxy(methyl)silyl)propyl)-methyl-1-amine (N,N-bis(3-(dimethoxy(methyl)silyl) in n-hexane as solution and second denaturant) propyl)-methyl-1-amine) in the same manner as in Example 1, except that the denaturation reaction was performed by continuously supplying a solution in which a solution in which 20% by weight was dissolved in an equivalent ratio of 0.3:0.7 A modified conjugated diene-based polymer was prepared.
- Example 1 when the conversion rate in the first reactor is 47%, it is transferred to the second reactor, and tris(3-(trimethoxysilyl)propyl)amine ( Tris(3-(trimethoxysilyl)propyl amine) is dissolved in 20% by weight and N-(3,6,9,12-tetraoxahexadecyl)-N-(3-( Triethoxysilyl)propyl)-3,6,9,12-tetrahexadecan-1-amine) (N-(3,6,9,12-tetraoxahexadecyl)-N-(3-(triethoxysilyl)propyl)- 3,6,9,12-tetraoxahexadecan-1-amine) in Example 1, except that the denaturation reaction was performed by continuously supplying a solution in which 20 wt% of a solution was mixed in an equivalent ratio of 0.3:0.7. A modified conjugated diene-based polymer was prepared in the
- Example 1 when the conversion rate is 46% in the first reactor, and the temperature is 55 ° C., it is transferred to the second reactor, and tetrachlorosilane (SiCl 4 ) in n-hexane as a coupling agent instead of the first and second modifiers
- SiCl 4 tetrachlorosilane
- a modified conjugated diene-based polymer was prepared in the same manner as in Example 1, except that the solution dissolved in 2.0 wt% was introduced into the third reactor at a rate of 40.0 g/h.
- Example 1 when the conversion rate of the first reactor is 48%, it is transferred to the second reactor, and in the third reactor, N,N-bis(3-(dimethoxy(methyl)silyl)propyl in n-hexane as a modifier) )-methyl-1-amine (N,N-bis(3-(dimethoxy(methyl)silyl)propyl)-methyl-1-amine) in which 20 wt% of a solution is continuously supplied to perform a denaturation reaction
- Example 1 N-(3,6,9,12-tetraoxahexadecyl)-N-(3-(triethoxysilyl)propyl)-3,6,9,12 in n-hexane as a modifier -tetrahexadecan-1-amine) (N-(3,6,9,12-tetraoxahexadecyl)-N-(3-(triethoxysilyl)propyl)-3,6,9,12-tetraoxahexadecan-1-amine)
- Example 1 the TMEDA input amount is doubled and the temperature of the first reactor is changed to 80 ° C. When the conversion rate of the first reactor is 85%, it is transferred to the second reactor, and the first denaturant is n- in the third reactor.
- N-(3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1-amine N- A solution in which (3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1-amine) was dissolved at 20% by weight and a second modifier N-(3,6,9,12-tetraoxahexadecyl)-N-(3-(triethoxysilyl)propyl)-3,6,9,12-tetrahexadecan-1-amine in
- 1,2-vinyl bond content 1,2-vinyl bond content, number average molecular weight (Mn, X10 3 g/mol), weight average molecular weight (Mw, X10 3 g) for each unmodified or modified conjugated diene-based polymer prepared in Examples and Comparative Examples /mol), molecular weight distribution (PDI, MWD), Mooney viscosity (MV), Si content, glass transition temperature (Tg, °C) and cold flow (mg/min) were measured, respectively, and are shown in Tables 1 and 2 below. It was.
- the vinyl (Vinyl) content in each polymer was measured and analyzed using Varian VNMRS 500 MHz NMR.
- 1,1,2,2-tetrachloroethane was used as the solvent, the solvent peak was calculated as 5.97 ppm, 6.9 to 6.2 ppm is block styrene, 5.8 to 5.1 ppm is 1,4-vinyl, and 5.1 to 4.5 ppm was calculated as the peak of 1,2-vinyl, and the 1,2-vinyl bond content (wt%) was calculated.
- the number average molecular weight (Mn), the peak top molecular weight (Mp) and the weight average molecular weight (Mw) were respectively measured under the following conditions by gel permeation chromatography (GPC) (PL GPC220, Agilent Technologies), and The molecular weight distribution was calculated by dividing the weight average molecular weight by the number average molecular weight.
- GPC gel permeation chromatography
- Mooney viscosity (MV, (ML1+4, @100°C MU) was measured using MV-2000 (ALPHA Technologies) at 100°C using a Rotor Speed 2 ⁇ 0.02 rpm, Large Rotor, and the sample used at this time was left at room temperature (23 ⁇ 3°C) for more than 30 minutes, and then collected 27 ⁇ 3 g, filled it in the die cavity, and operated the platen to measure for 4 minutes.
- a modified conjugated diene-based polymer was used as a sample, and in accordance with ISO 22768:2006, it was measured using a differential scanning calorimeter (trade name "DSC3200S” manufactured by McScience Corporation). Specifically, the DSC curve was recorded while the temperature was raised from -100°C to 10°C/min under the flow of helium 50 mL/min, and the peak top (Inflection point) of the DSC differential curve was expressed as the glass transition temperature.
- the ICP analysis method was measured using an inductively coupled plasma emission analyzer (ICP-OES; Optima 7300DV). Specifically, about 0.7 g of the sample is placed in a platinum crucible (Pt crucible), and about 1 mL of concentrated sulfuric acid (98 wt%, Electronic grade) is added, heated at 300° C. for 3 hours, and the sample is heated in an electric furnace (Thermo Scientific, Lindberg Blue M), after conducting the conversation with the program of the following steps 1 to 3,
- ICP-OES inductively coupled plasma emission analyzer
- step 1 initial temp 0°C, rate (temp/hr) 180°C/hr, temp(holdtime) 180°C (1hr)
- step 2 initial temp 180°C, rate (temp/hr) 85°C/hr, temp(holdtime) 370°C (1hr)
- step 3 initial temp 370°C, rate (temp/hr) 47°C/hr, temp(holdtime) 510°C (3hr)
- the sample and the oven were allowed to temperature in an oven at a temperature of 50° C., and then left to stand for 10 minutes to remove the protruding polymer sample to obtain a steady state. Thereafter, while extruding the polymer sample at a pressure of 34.6 kPa through a 1/4 inch orifice, the extrusion amount of the polymer sample flowing through the orifice was measured at 30 minute intervals for 90 minutes, and the extrusion amount was measured in grams per minute ( mg/min) and expressed as cold flow. The cold flow value indicates that the smaller the value, the better the shape stability (storage stability).
- N-(3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1-amine N- (3-(1H-imidazol-1-yl)propyl)-3-(triethoxysilyl)-N-(3-(triethoxysilyl)propyl)propan-1-amine
- B tris(3-(trimethoxysilyl)propyl )amine (tris(3-(trimethoxysilyl)propyl) amine)
- Example 1 of the present invention it can be confirmed that the molecular weight distribution (PDI) is less than 1.70, and the cold flow value is 1.00 or less.
- PDI molecular weight distribution
- FIG. 1 in Example 1 of the present invention, it can be confirmed that the molecular weight distribution curve by gel permeation chromatography (GPC) has a unimodal shape.
- Comparative Examples 1 and 2 which are unmodified polymers in Comparative Examples, the cold flow value satisfies 1.00 or less, but the molecular weight distribution value is 1.70 or more, which is outside the scope of the present invention.
- the molecular weight distribution value satisfies less than 1.70, but the cold flow value is 1.00 or more, out of the scope of the present invention, or when the cold flow value is 1.00 or less, the molecular weight distribution value It can be confirmed that exceeding 1.70 is outside the scope of the present invention.
- Each modified or unmodified conjugated diene-based polymer of Examples and Comparative Examples was compounded under the compounding conditions shown in Table 3 below as raw rubber.
- the content of the raw material in Table 3 is each part by weight based on 100 parts by weight of the raw rubber.
- the rubber specimen is kneaded through the first stage kneading and the second stage kneading.
- first stage kneading raw rubber, silica (filler), organosilane coupling agent (X50S, Evonik), process oil (TDAE oil), zinc oxide (ZnO), stearic acid using a Banbari mixer with a temperature control device is used.
- antioxidant (TMQ(RD) (2,2,4-trimethyl-1,2-dihydroquinoline polymer), antioxidant (6PPD ((dimethylbutyl)-N-phenyl-phenylenediamine) and wax (Microcrystaline Wax) ) was kneaded.At this time, the initial temperature of the kneader was controlled to 70° C., and after the mixing was completed, a first formulation was obtained at a discharge temperature of 145° C. to 155° C. In the second stage of kneading, the first formulation was cooled to room temperature.
- the tan ⁇ value was confirmed by measuring the viscoelastic behavior with respect to dynamic deformation at a frequency of 10 Hz and each measurement temperature (-60°C to 60°C) in Film Tension mode using a dynamic mechanical analyzer (GABO).
- GBO dynamic mechanical analyzer
- abrasion resistance For abrasion resistance, a load of 10 N was applied to a rotating drum to which abrasion paper was attached using a DIN abrasion tester, and the rubber specimen was moved in a direction perpendicular to the rotational direction of the drum, and then the amount of lost weight was measured.
- the rotational speed of the drum is 40 rpm, and the total travel distance of the specimen at the completion of the test is 40 m.
- Example comparative example One 2 3 4 5 One 2 3 4 5 6 Tan ⁇ 60°C (Index) 118 122 119 120 123 100 86 118 120 112 109 wear resistance (Index) 116 113 115 115 114 100 115 112 114 120 117
- Examples 1 to 5 can confirm that both the viscoelastic properties and the abrasion resistance are improved at the same time. In particular, it can be confirmed that both the viscoelastic properties and the abrasion resistance are significantly improved compared to Comparative Examples 1 and 2 using an unmodified polymer. and a modifier was applied, but it was confirmed that the viscoelastic properties were improved compared to Comparative Example 5, in which the polymer of a branched structure was mainly used. In addition, Comparative Examples 3 and 4 using only one modifier are shown in Table 2 As shown, it was confirmed that the cold flow exceeded 1.00 and the storage stability and shape stability were very poor, and it could be confirmed that the viscoelastic properties and abrasion resistance were also poor compared to the examples. Even if the viscoelastic properties or abrasion resistance are equivalent to those of the Examples, it can be seen that the polymer has poor performance compared to the Examples if the effects of storage stability and shape stability are considered.
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Abstract
Description
구분 | 실시예 | |||||
1 | 2 | 3 | 4 | 5 | ||
반응 조건 | 반응기 개수 | 3 | 3 | 3 | 3 | 3 |
극성첨가제 | TMEDA | TMEDA | TMEDA | TMEDA | TMEDA | |
변성제 또는 커플링제 | A+C | A+D | A+E | B+C | B+E | |
제1 반응기 온도(℃) | 65 | 65 | 65 | 65 | 65 | |
제1 반응기 중합 전환율(%) | 48 | 48 | 48 | 48 | 47 | |
NMR (중량%) | Vinyl | 10 | 10 | 10 | 10 | 10 |
GPC | Mw(X103 g/mol) | 505 | 533 | 512 | 576 | 593 |
Mn(X103 g/mol) | 330 | 331 | 330 | 341 | 353 | |
PDI | 1.53 | 1.61 | 1.55 | 1.69 | 1.68 | |
분자량 분포 곡선 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | |
무니점도(MV) | 60 | 63 | 62 | 67 | 68 | |
Si 함량(ppm) | 230 | 219 | 215 | 270 | 234 | |
Tg(℃) | -91 | -90 | -90 | -90 | -90 | |
콜드플로우(mg/min) | 0.77 | 0.75 | 0.74 | 0.68 | 0.69 |
구분 | 비교예 | ||||||
1 | 2 | 3 | 4 | 5 | 6 | ||
반응 조건 | 반응기 개수 | 3 | CB24 | 3 | 3 | 3 | 3 |
극성첨가제 | TMEDA | TMEDA | TMEDA | TMEDA | TMEDA | ||
변성제 또는 커플링제 | H | C | E | B | A+E | ||
제1 반응기 온도(℃) | 55 | 65 | 65 | 65 | 80 | ||
제1 반응기 중합 전환율(%) | 46 | 43 | 48 | 47 | 85 | ||
NMR (중량%) |
Vinyl | 10 | 0.5 | 10 | 10 | 10 | 9 |
GPC | Mw(X103 g/mol) | 893 | 605 | 561 | 371 | 672 | 696 |
Mn(X103 g/mol) | 350 | 248 | 340 | 231 | 320 | 312 | |
PDI | 2.55 | 2.44 | 1.65 | 1.61 | 2.10 | 2.23 | |
분자량 분포 곡선 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | 유니모달 | |
무니점도(MV) | 43 | 45 | 65 | 45 | 68 | 72 | |
Si 함량(ppm) | 23 | 39 | 249 | 219 | 105 | 185 | |
Tg(℃) | -90 | -107 | -90 | -90 | -90 | -91 | |
콜드플로우(mg/min) | 0.80 | 0.71 | 1.12 | 1.02 | 0.10 | 0.65 |
구분 | 원료 | 함량(중량부) |
제1단 혼련 | 고무 | 100 |
실리카 | 70 | |
커플링제(X50S) | 11.2 | |
공정유 | 37.5 | |
아연화제 | 3 | |
스테아르산 | 2 | |
산화 방지제 | 2 | |
노화 방지제 | 2 | |
왁스 | 1 | |
제2단 혼련 | 황 | 1.5 |
고무촉진제 | 1.75 | |
가황촉진제 | 2 |
실시예 | 비교예 | ||||||||||
1 | 2 | 3 | 4 | 5 | 1 | 2 | 3 | 4 | 5 | 6 | |
Tanδ60 ℃ (Index) |
118 | 122 | 119 | 120 | 123 | 100 | 86 | 118 | 120 | 112 | 109 |
내마모성 (Index) |
116 | 113 | 115 | 115 | 114 | 100 | 115 | 112 | 114 | 120 | 117 |
Claims (13)
- a) 겔 투과 크로마토그래피(GPC, Gel permeation chromatography)에 의한 분자량 분포 곡선이 유니모달(unimodal) 형태를 갖고,b) 분자량 분포(PDI; MWD)가 1.00 이상, 1.70 미만이고,c) 콜드 플로우(cold flow)가 1.00 이하이며,d) Si 함량이 변성 공액디엔계 중합체 총 중량을 기준으로 100 ppm 이상인 것인 변성 공액디엔계 중합체.
- 제1항에 있어서,상기 변성 공액디엔계 중합체는 유리전이온도가 -100℃ 내지 -50℃인 것인 변성 공액디엔계 중합체.
- 제1항에 있어서,상기 변성 공액디엔계 중합체는 수평균 분자량이 200,000 g/mol 내지 1,000,000 g/mol인 것인 변성 공액디엔계 중합체.
- 제1항에 있어서,상기 변성 공액디엔계 중합체는 방향족 비닐계 단량체 유래 반복단위를 포함하지 않는 것인 변성 공액디엔계 중합체.
- 제1항에 있어서,상기 변성 공액디엔계 중합체 내 1,2-비닐 결합 함량이 5 중량% 내지 30 중량%인 것인 변성 공액디엔계 중합체.
- 제1항에 있어서,상기 변성 공액디엔계 중합체 분자 내 N 원자를 포함하며, 상기 N 원자의 함유량이 중합체 총 중량을 기준으로 50 ppm 이상인 것인 변성 공액디엔계 중합체.
- 탄화수소 용매 중에서, 중합 개시제의 존재 하에, 공액디엔계 단량체를 중합하여 활성 중합체를 제조하는 단계(S1); 및상기 (S1) 단계에서 제조된 활성 중합체와 변성제를 반응시키는 단계(S2)를 포함하고,중합 반응(S1) 및 변성 반응(S2)은 연속식으로 실시되고,상기 (S1) 단계는 2기 이상의 중합 반응기에서 실시되며,상기 중합 반응기 중 제1 중합 반응기에서의 중합 전환율은 50% 이하이며,상기 변성제는 제1 변성제 및 제2 변성제를 포함하고,상기 제1 변성제는 활성 중합체와 반응할 수 있는 반응성 작용기가 5개를 초과하는 변성제이며,상기 제2 변성제는 활성 중합체와 반응할 수 있는 반응성 작용기가 5개 이하인 변성제인 것인 변성 공액디엔계 중합체의 제조방법.
- 제7항에 있어서,상기 활성 중합체와 반응할 수 있는 반응성 작용기는 알콕시기인 것인 변성 공액디엔계 중합체의 제조방법.
- 제7항에 있어서,상기 제1 변성제는 하기 화학식 1로 표시되는 화합물을 포함하고,상기 제2 변성제는 하기 화학식 2 및 화학식 3으로 표시되는 화합물 중 적어도 하나 이상의 화합물을 포함하는 것인 변성 공액디엔계 중합체의 제조방법:[화학식 1]상기 화학식 1에서,Ra1 및 Ra4는 서로 독립적으로 단일결합, 또는 탄소수 1 내지 10의 알킬렌기이고,Ra2 및 Ra3는 서로 독립적으로 탄소수 1 내지 10의 알킬기이고,Ra5는 수소 원자, 탄소수 1 내지 10의 알킬기, 탄소수 1 내지 10의 알킬기로 치환된 2가, 3가 또는 4가의 알킬실릴기, N, O 및 S로 이루어진 군으로부터 선택되는 1종 이상의 헤테로 원자를 포함하는 탄소수 2 내지 4의 5원 헤테로고리기이고, 여기에서 상기 헤테로고리기는 탄소수 1 내지 10의 알킬기 또는 (트리알콕시실릴)알킬기로 치환되거나 또는 비치환된 것일 수 있고, 상기 (트리알콕시실릴)알킬기에서 알킬기는 탄소수 1 내지 10의 알킬기이고, 상기 알콕시기는 탄소수 1 내지 10의 알콕시기이며,m1은 1 내지 3의 정수이고, m2는 0 내지 2의 정수이되, -(ORa2)기가 총 5개를 초과하며,[화학식 2]상기 화학식 2에서,Rb1 단일결합, 또는 탄소수 1 내지 10의 알킬렌기이고,Rb2 및 Rb3는 서로 독립적으로 탄소수 1 내지 10의 알킬기 또는 -[Rb6O]n3-Rb7이며,Rb4는 단일결합, 탄소수 1 내지 10의 알킬렌기, 또는 -[Rb6O]n3이고,Rb5는 수소 원자, 탄소수 1 내지 10의 알킬기 또는 탄소수 1 내지 10의 알킬기로 치환된 2가, 3가 또는 4가의 알킬실릴기이고,Rb6는 탄소수 1 내지 10의 알킬렌기이고,Rb7은 탄소수 1 내지 10의 알킬기이며,n1은 1 내지 3의 정수일 수 있고, n2는 0 내지 2의 정수이며, n3은 1 내지 30의 정수이되, -(ORb2)기가 총 5개 이하이며,[화학식 3]상기 화학식 3에서,A1 및 A2는 서로 독립적으로 탄소수 1 내지 20의 알킬렌기이고,Rc1 내지 Rc4는 서로 독립적으로 탄소수 1 내지 20의 알킬기이고,L1 내지 L4는 서로 독립적으로 탄소수 1 내지 20의 알킬기, 탄소수 6 내지 20의 아릴기 또는 탄소수 1 내지 10의 알킬기로 치환된 2가, 3가 또는 4가의 알킬실릴기이다.
- 제7항에 있어서,상기 제1 변성제와 제2 변성제는 1:9 내지 5:5의 당량비로 포함되는 것인 변성 공액디엔계 중합체의 제조방법.
- 제1항에 따른 변성 공액디엔계 중합체 및 충진제를 포함하는 고무 조성물.
- 제11항에 있어서,상기 변성 공액디엔계 중합체 100 중량부에 대하여, 0.1 중량부 내지 200 중량부의 충진제를 포함하는 것인 고무 조성물.
- 제12항에 있어서,상기 충진제는 실리카계 충진제 또는 카본블랙계 충진제인 고무 조성물.
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KR20090091807A (ko) * | 2006-12-27 | 2009-08-28 | 제이에스알 가부시끼가이샤 | 변성 공액 디엔계 중합체의 제조 방법, 변성 공액 디엔계 중합체, 및 고무 조성물 |
JP2013082842A (ja) * | 2011-10-12 | 2013-05-09 | Asahi Kasei Chemicals Corp | 変性共役ジエン系重合体の製造方法、変性共役ジエン系重合体、変性共役ジエン系重合体組成物、及びタイヤ |
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KR20180088340A (ko) * | 2017-01-03 | 2018-08-03 | 주식회사 엘지화학 | 변성 공액디엔계 중합체 및 이를 포함하는 고무 조성물 |
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JP4367590B2 (ja) * | 1999-11-12 | 2009-11-18 | Jsr株式会社 | 共役ジエン系重合体の製造方法およびゴム組成物 |
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KR20190128584A (ko) * | 2018-05-08 | 2019-11-18 | 주식회사 엘지화학 | 변성 공액디엔계 중합체 및 이를 포함하는 고무 조성물 |
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- 2021-01-18 TW TW110101811A patent/TW202140579A/zh unknown
- 2021-01-18 CN CN202180005563.8A patent/CN114450319A/zh active Pending
- 2021-01-18 US US17/763,305 patent/US20220348700A1/en active Pending
- 2021-01-18 BR BR112022007329A patent/BR112022007329A2/pt unknown
- 2021-01-18 WO PCT/KR2021/000643 patent/WO2021149982A1/ko unknown
- 2021-01-18 JP JP2022523215A patent/JP7407280B2/ja active Active
- 2021-01-18 EP EP21743667.4A patent/EP4095166A4/en active Pending
- 2021-01-18 KR KR1020210006500A patent/KR20210093770A/ko not_active Application Discontinuation
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KR20190020061A (ko) * | 2016-09-23 | 2019-02-27 | 닛뽕 엘라스토마 가부시끼가이샤 | 변성 공액 디엔계 중합체, 변성 공액 디엔계 중합체 조성물, 타이어 및 변성 공액 디엔계 중합체의 제조 방법 |
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See also references of EP4095166A4 * |
Also Published As
Publication number | Publication date |
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TW202140579A (zh) | 2021-11-01 |
KR20210093770A (ko) | 2021-07-28 |
EP4095166A4 (en) | 2023-06-28 |
EP4095166A1 (en) | 2022-11-30 |
JP7407280B2 (ja) | 2023-12-28 |
JP2022553036A (ja) | 2022-12-21 |
CN114450319A (zh) | 2022-05-06 |
BR112022007329A2 (pt) | 2022-08-02 |
US20220348700A1 (en) | 2022-11-03 |
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