WO2015183040A1 - 양친매성 이방성 분체 및 그 제조방법 - Google Patents
양친매성 이방성 분체 및 그 제조방법 Download PDFInfo
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- WO2015183040A1 WO2015183040A1 PCT/KR2015/005430 KR2015005430W WO2015183040A1 WO 2015183040 A1 WO2015183040 A1 WO 2015183040A1 KR 2015005430 W KR2015005430 W KR 2015005430W WO 2015183040 A1 WO2015183040 A1 WO 2015183040A1
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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
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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
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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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
- C08F8/00—Chemical modification by after-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/02—Compositions of unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
Definitions
- amphiphilic anisotropic powder and a method for producing the same are disclosed herein.
- the present specification aims to provide an amphiphilic anisotropic powder that maximizes the chemical surface activity and the physical surface activity by adjusting the degree of geometry, chemical hydrophilicity.
- the present specification is to provide a method for producing an amphiphilic anisotropic powder is simple and maximized yield is possible mass production.
- the technology disclosed herein includes a hydrophilic first polymeric spheroid and a hydrophobic second polymeric spheroid, wherein the first polymeric spheroid and the second polymeric spheroid at least partially form a relative polymeric spheroid.
- the first polymer spheroid Coupling in a penetrating structure, the first polymer spheroid has a core-shell structure and the shell provides an amphipathic anisotropic powder comprising a functional group.
- the core of the first polymer spheroid and the second polymer spheroid may include a vinyl polymer
- the shell of the first polymer spheroid may include a copolymer of a vinyl monomer and a functional group.
- the vinyl polymer may be a vinyl aromatic polymer.
- the functional group may be a siloxane.
- the shell of the first polymer spheroid may be further introduced with a hydrophilic functional group.
- the hydrophilic functional group may be at least one selected from the group consisting of carboxylic acid group, sulfone group, phosphate group, amino group, alkoxy group, ester group, acetate group, polyethylene glycol group and hydroxyl group. .
- the amphiphilic anisotropic powder may have a symmetrical shape, an asymmetrical snowman shape, or an asymmetrical inverse snowman shape based on the bonding portion where the first polymer spheroid and the second polymer spheroid are bonded to each other. Can be.
- the amphiphilic anisotropic powder may have a particle size of 100 to 2500 nm.
- the amphiphilic anisotropic powder may form large emulsified particles of 2 to 200 ⁇ m.
- the technology disclosed herein is a method of preparing the amphipathic anisotropic powder, the method comprising the steps of (1) preparing a core of the first polymer spheroid by stirring the first monomer and the polymerization initiator; (2) stirring the core of the prepared first polymeric spheroid with a compound including a first monomer, a polymerization initiator, and a functional group to prepare a coated first polymer spheroid having a core-shell structure; (3) stirring the prepared first polymer spheroid having a core-shell structure with a second monomer and a polymerization initiator to prepare an anisotropic powder having a second polymer spheroid formed thereon; And (4) introducing a hydrophilic functional group into the prepared anisotropic powder.
- the first monomer and the polymerization initiator may be mixed in a weight ratio of 100 to 1000: 1.
- the compound containing a functional group in the step (2) may be a siloxane-containing (meth) acrylate.
- the compound including the first monomer, the polymerization initiator and the functional group in the step (2) may be mixed in a weight ratio of 80 to 98: 0.2 to 1.0: 1 to 20.
- the second monomer and the polymerization initiator may be mixed in a weight ratio of 150 to 250: 1.
- the second monomer content in the step (3) may be mixed to 40 to 300 parts by weight when the weight of the first polymer spheroid of the core-shell structure is 100 parts by weight.
- the hydrophilic functional group may be introduced using a silane coupling agent and a reaction regulator.
- the silane coupling agent may be N- [3- (trimethoxysilyl) propyl] ethylenediamine.
- the reaction modifier may be ammonium hydroxide.
- the technique disclosed in the present specification by adjusting the geometric properties of the amphiphilic and macromolecular particles characteristic of the conventional surfactant, to maximize the chemical surfactant and physical surfactant activity at the same time to maximize the amphiphilic anisotropic powder It is effective to provide.
- the technology disclosed herein is simple and excellent in yield, enabling mass production, and has an effect of providing a method for preparing amphipathic anisotropic powders capable of controlling particle size to about 100 to 2500 nm.
- 1 is a schematic diagram showing the formulation of the formulation of the pickling emulsion according to the change in contact angle at the interface of the spherical solid powder.
- Figure 2 is a schematic diagram of forming an amphiphilic anisotropic powder according to an embodiment of the present invention.
- FIG. 3 is a photograph and a schematic view of a cylindrical rotary reactor used in the preparation of amphipathic anisotropic powder according to an embodiment of the present invention.
- Figure 4 is a schematic diagram of the amphipathic anisotropic powder combined with an electron micrograph (scale bar 1 ⁇ m) of the amphiphilic anisotropic powder and the first polymer spheroid and the second polymer spheroid according to an embodiment of the present invention.
- Figure 5 is a micrograph showing the emulsification capacity and emulsified particles according to the presence or absence of amphiphilic anisotropic powder according to an embodiment of the present invention.
- FIG. 6 is a table showing a silane coupling agent compound used in Preparation Example 4.
- (meth) acryl may mean acryl and / or methacryl.
- the particle size of the amphipathic powder is a measure of the maximum length, which is the longest length in the powder particles.
- the technology disclosed herein includes a hydrophilic first polymeric spheroid and a hydrophobic second polymeric spheroid, wherein the first polymeric spheroid and the second polymeric spheroid at least partially form a relative polymeric spheroid.
- the first polymer spheroid Coupling in a penetrating structure, the first polymer spheroid has a core-shell structure and the shell provides an amphipathic anisotropic powder comprising a functional group.
- a spheroid is a body composed of a polymer, and may be, for example, a sphere, globoid, or oval shape, and based on the longest length in the body cross section. Or have a long axis length in nano units.
- the core of the first polymer spheroid and the second polymer spheroid may include a vinyl polymer
- the shell of the first polymer spheroid may include a copolymer of a vinyl monomer and a functional group.
- the vinyl polymer may be a vinyl aromatic polymer, for example, may be polystyrene.
- the functional group may be a siloxane.
- the shell of the first polymer spheroid may be further introduced with a hydrophilic functional group.
- the hydrophilic functional group may be a functional group having a negative or positive charge or polyethylene glycol (PEG) series, a carboxylic acid group, sulfone group, phosphate group, amino group, alkoxy group, ester group, acetate group, It may be at least one selected from the group consisting of a polyethylene glycol group and a hydroxyl group.
- PEG polyethylene glycol
- the amphiphilic anisotropic powder may have a symmetrical shape, an asymmetrical snowman shape, or an asymmetrical inverse snowman shape based on the bonding portion where the first polymer spheroid and the second polymer spheroid are bonded to each other.
- the snowman shape means that the first and second polymer spheroids having different sizes are bonded to each other.
- the amphiphilic anisotropic powder may have a particle size of 100 to 2500 nm.
- the amphipathic powder may have a particle size of 100 to 1500 nm, 100 to 500 nm, or 200 to 300 nm.
- the amphiphilic powder has a particle size of 100 nm or more, 200 nm or more, 300 nm or more, 400 nm or more, 500 nm or more, 600 nm or more, 700 nm or more, 800 nm or more, 900 nm or more, or 1000 nm or more.
- the amphiphilic anisotropic powder may form large emulsified particles of 2 to 200 ⁇ m.
- the amphipathic powder may be to form a large emulsion particles of 5 to 200 ⁇ m, 10 to 100 ⁇ m, 10 to 50 ⁇ m, or 25 ⁇ m.
- the amphipathic powder is 2 ⁇ m or more, 5 ⁇ m or more, 10 ⁇ m or more, 15 ⁇ m or more, 20 ⁇ m or more, 25 ⁇ m or more, 30 ⁇ m or more, 40 ⁇ m or more, 50 ⁇ m or more, 80 ⁇ m or more, 100 ⁇ m 130 ⁇ m or more, 150 ⁇ m or more and 180 ⁇ m or more, 200 ⁇ m or less, 180 ⁇ m or less, 150 ⁇ m or less, 130 ⁇ m or less, 100 ⁇ m or less, 80 ⁇ m or less, 50 ⁇ m or less, 40 ⁇ m or less, 30 ⁇ m or less , Emulsified particles of 25 ⁇ m or less, 20 ⁇ m or less, 15 ⁇ m or less, 10 ⁇ m or less, or 5 ⁇ m or less can be formed.
- the hydrophobic and hydrophilic portions of the amphiphilic anisotropic powder have different orientations with respect to the interface to form large emulsion particles, thereby enabling the implementation of a formulation having excellent usability.
- Conventional molecular-level surfactants have made it difficult to produce stabilized large emulsion particles having a particle diameter of several tens of micrometers, and the surface thickness of the surfactant was about several nm, whereas the surface thickness of the amphiphilic anisotropic powder disclosed herein Is increased to about several hundred nm and the emulsion stability can be greatly improved as the stabilized interfacial film is formed due to the strong bonding between the powders.
- the technology disclosed herein is a method of preparing the amphipathic anisotropic powder, the method comprising the steps of (1) preparing a core of the first polymer spheroid by stirring the first monomer and the polymerization initiator; (2) stirring the core of the prepared first polymeric spheroid with a compound including a first monomer, a polymerization initiator, and a functional group to prepare a coated first polymer spheroid having a core-shell structure; (3) stirring the prepared first polymer spheroid having a core-shell structure with a second monomer and a polymerization initiator to prepare an anisotropic powder having a second polymer spheroid formed thereon; And (4) introducing a hydrophilic functional group into the prepared anisotropic powder.
- the stirring may be rotary stirring.
- Rotational agitation is preferred because uniform mechanical mixing is required along with chemical modification to produce uniform particles.
- the rotary stirring may be rotary stirring in a cylindrical rotary reactor, but the rotary stirring method is not limited thereto.
- the size and location of the baffles in the cylindrical rotary reactor and the degree of spacing with the impeller greatly affect the uniformity of the particles produced. It is desirable to minimize the blade gap between the inner wing and the impeller to equalize the convective flow and its strength, and to supply the powder reaction liquid below the wing length and maintain the impeller rotation speed at a high speed. It may be rotated at a highway of 200 rpm or more, and the ratio of the length of the diameter and the height of the reactor may be 1 to 3: 1 to 5, more specifically, 10 to 30 cm in diameter and 10 to 50 cm in height. The reactor size can vary in proportion to the reaction capacity. In addition, the material of the cylindrical rotary reactor may be a ceramic, glass, and the like, the temperature of the stirring is preferably 50 to 90 °C.
- the simple rotary method enables the production of uniform particles and is a low energy method that requires less energy, and has a characteristic of enabling mass production by maximizing reaction efficiency.
- the tumbling method in which the reactor itself rotates in the related art requires high energy and rotates the reactor at a predetermined angle, thus requiring high energy and restricting the size of the reactor. Due to the limitations of the reactor size, the amount produced is also limited to small amounts of about several hundred mg to several g, making it unsuitable for mass production.
- the first monomer and the second monomer may be the same or different, specifically, may be a vinyl monomer.
- the first monomer added in step (2) is the same as the first monomer used in step (1), the polymerization initiator used in each step may be the same or different.
- the vinyl monomer may be vinyl aromatic.
- the vinyl monomer may be substituted or unsubstituted styrene.
- the polymerization initiator may be a radical polymerization initiator, specifically, may be a peroxide-based, azo-based or a mixture thereof. Moreover, ammonium persulfate, sodium persulfate, potassium persulfate can also be used.
- the first monomer and the polymerization initiator may be mixed in a weight ratio of 100 to 1000: 1.
- the first monomer and the polymerization initiator may be mixed in a weight ratio of 100 to 750: 1, or 100 to 500: 1, or 100 to 250: 1.
- a stabilizer may be added together with the first monomer and the polymerization initiator to mix the first monomer, the polymerization initiator, and the stabilizer in a weight ratio of 100 to 1000: 1: 0.001 to 5.
- the powder size and shape are determined according to the size adjustment of the first polymer spheroid in the initial stage (1), and the first polymer spheroid size can be adjusted according to the weight ratio of the first monomer, the polymerization initiator and the stabilizer.
- the weight ratio of the said range there exists an effect which can raise the uniformity of anisotropic powder.
- the stabilizer may be an ionic vinyl monomer, specifically, sodium 4-vinylbenzenesulfonate may be used.
- Stabilizers prevent swelling of the resulting particles and impart positive or negative charges to the surface of the powder to electrostatically prevent mutual coalescence (bonding) during particle generation.
- the first ratio of the weight ratio of the first monomer, the polymerization initiator and the stabilizer is 110 to 130: 1: 1 to 5, specifically 115 to 125: 1: 1-2 to 4 It can be prepared from polymeric spheroids.
- the weight ratio of the first monomer, the polymerization initiator and the stabilizer is 225 to 240: 1: 1 to 3, specifically 230 to 235: 1: 1 to 3 It can be prepared from the first polymer spheroid.
- the amphiphilic powder has a size of 1100 to 2500 nm
- the first polymer spar having a weight ratio of the first monomer, the polymerization initiator, and the stabilizer is 110 to 130: 1: 0, specifically 115 to 125: 1: 0 It can be prepared from Lloyd.
- the asymmetric snowman-like amphiphilic powder has a weight ratio of the first monomer, the polymerization initiator, and the stabilizer of 100 to 140: 1: 8 to 12, specifically 110 to 130: 1: 9 to 11 of the first polymer It can be prepared from spheroids.
- the asymmetric inverse snowman-like amphiphilic powder has a weight ratio of the first monomer, the polymerization initiator, and the stabilizer is 100 to 140: 1: 1 to 5, specifically 110 to 130: 1: 2 to 4 It can be prepared from polymeric spheroids.
- the compound containing a functional group in the step (2) may be a siloxane-containing (meth) acrylate, specifically, 3- (trimethoxysilyl) propyl acrylate, 3- (tri Methoxysilyl) propyl methacrylate, vinyltriethoxysilane, vinyltrimethoxysilane or mixtures thereof.
- the compound including the first monomer, the polymerization initiator and the functional group in the step (2) may be mixed in a weight ratio of 80 to 98: 0.2 to 1.0: 1 to 20.
- the compound including the first monomer, the polymerization initiator and the functional group may be mixed in a weight ratio of 160 to 200: 1: 6 to 40.
- the degree of coating can be adjusted according to the weight ratio, and the amphiphilic anisotropic powder is formed according to the degree of coating. When reacting with the weight ratio, the coating thickness increases to about 10 to 30%, specifically 20%, relative to the initial thickness. The coating is too thick so that powdering does not proceed or is too thin so that the powdering proceeds well without the problem of powdering in multiple directions. Moreover, by mixing in the weight ratio of the said range, there exists an effect which can raise the uniformity of anisotropic powder.
- the second monomer and the polymerization initiator may be mixed in a weight ratio of 150 to 250: 1.
- the second monomer and the polymerization initiator are 160 to 250: 1, or 170 to 250: 1, or 180 to 250: 1, or 190 to 250: 1, or 200 to 250: 1, or 210 to 250 It can be mixed in a weight ratio of: 1, or 220 to 250: 1, or 230 to 250: 1, or 240 to 250: 1.
- the second monomer, the polymerization initiator and the stabilizer may be added together with the second monomer and the polymerization initiator to mix the second monomer, the polymerization initiator and the stabilizer in a weight ratio of 150 to 250: 1: 1: 0.001 to 5.
- the specific kind of stabilizer is as above-mentioned.
- the second monomer content in the step (3) may be mixed to 40 to 300 parts by weight when the weight of the first polymer spheroid of the core-shell structure is 100 parts by weight.
- the second monomer content is 40 to 100 parts by weight when the weight of the first polymer spheroid of the core-shell structure is 100 parts by weight, an asymmetric snowman type powder is obtained, and 100 to 150 parts by weight, or 110 to 150 parts by weight.
- parts by weight a symmetrical powder is obtained, and in the case of 150 to 300 parts by weight, or in the case of 160 to 300 parts by weight, an asymmetric inverse snowman type powder is obtained.
- by mixing in the weight ratio of the said range there exists an effect which can raise the uniformity of anisotropic powder.
- the hydrophilic functional group in step (4) is not limited thereto, but may be introduced using a silane coupling agent and a reaction modifier.
- the silane coupling agent is (3-aminopropyl) trimethoxysilane, N- [3- (trimethoxysilyl) propyl] ethylenediamine, N- [3- (trimethoxysilyl ) Propyl] ethylenediammonium chloride, (N-succinyl-3-aminopropyl) trimethoxysilane, 1- [3- (trimethoxysilyl) propyl] urea and 3-[(trimethoxysilyl) propyloxy ] -1,2-propanediol may be one or more selected from the group consisting of, specifically N- [3- (trimethoxysilyl) propyl] ethylenediamine.
- the silane coupling agent may be mixed in an amount of 35 to 65 parts by weight, for example 40 to 60 parts by weight, based on 100 parts by weight of the anisotropic powder prepared in step (3).
- Hydrophilization can be suitably made within the said range.
- the reaction modifier may be ammonium hydroxide.
- the reaction modifier may be mixed in an amount of 85 parts by weight to 115 parts by weight, for example, 90 parts by weight to 110 parts by weight, based on 100 parts by weight of the anisotropic powder prepared in step (3). Hydrophilization can be suitably made within the said range.
- polystyrene-coreshell (PS-CS) aqueous dispersion solution obtained as a result of the reaction 40 g of styrene as a monomer, 0.35 g of sodium 4-vinylbenzenesulfonate as a stabilizer, and azo as a polymerization initiator 0.2 g of bisisobutyronitrile (Azobisisobutyronitrile, AIBN) was mixed and heated to 75 ° C. for 8 hours. The reaction was stirred in a cylindrical rotary reactor.
- PS-CS polystyrene-coreshell
- the emulsion composition contained 1% by weight of the anisotropic powder and 20% by weight of diisostearylmaleate based on the total weight of the composition.
- Figure 5 (a) is an anisotropic powder before the hydrophilic modification according to Preparation Example 3, it was confirmed that the powder is present as an aqueous dispersion without emulsification.
- Figure 5 (b) is an anisotropic powder after the hydrophilic modification according to Preparation Example 4, the anisotropic powder after the hydrophilic modification ((N- [3- (trimethoxysilyl) propyl] ethylenediamine)) is huge It was confirmed that the emulsified particles were stably formed and, as time passed, the emulsified particles moved unified to the upper layer.
- Amphiphilic anisotropic prepared using 30 g of N- [3- (trimethoxysilyl) propyl] ethylenediamine as a silane coupling agent and 60g of ammonium hydroxide as a reaction regulator The powder was observed.
- Table 1 Composition ratio (g) -average powder size 250nm per 1L reactor PS (1L shake reactor) CS DB Water 300 PS 300 CS 240 MeOH 40 Water 250 Water 350 Styrene 50 TMSPA 6 AIBN 0.2 KPS 0.5 Styrene 50 Styrene 40 SVBS 1.0 AIBN 0.2 SVBS 0.35
- KPS Potassium persulfate (initiator)
- SVBS Sodium vinyl benzene sulfonate (stabilizer)
- AIBN Azobisisobutyronitrile (polymerization initiator)
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Abstract
Description
1L 반응기 기준 조성비(g)-평균 분체 사이즈 250nm | |||||
PS(1L 진탕형 반응조) | CS | DB | |||
Water | 300 | PS | 300 | CS | 240 |
MeOH | 40 | Water | 250 | Water | 350 |
Styrene | 50 | TMSPA | 6 | AIBN | 0.2 |
KPS | 0.5 | Styrene | 50 | Styrene | 40 |
SVBS | 1.0 | AIBN | 0.2 | SVBS | 0.35 |
1L 반응기 기준 조성비(g)-평균 분체 사이즈 450nm | |||||
PS(1L 진탕형 반응조) | CS | DB | |||
Water | 700 | PS 용액 | 250 | CS | 200 |
MeOH | 200 | Water | 200 | Water | 300 |
Styrene | 130 | TMSPA | 5 | AIBN | 0.1 |
KPS | 0.6 | Styrene | 30 | Styrene | 20 |
SVBS | 1 | AIBN | 0.2 | SVBS | 0.2 |
1L 반응기 기준 조성비(g)-평균 분체 사이즈 1300nm | |||||
PS(1L 진탕형 반응조) | CS | DB | |||
Water | 420 | PS | 400 | CS | 200 |
MeOH | 120 | Water | 300 | Water | 290 |
Styrene | 85 | TMSPA | 5 | AIBN | 0.2 |
KPS | 0.7 | Styrene | 40 | Styrene | 40 |
SVBS | 0.5 | AIBN | 0.2 | SVBS | 0.5 |
1L 반응기 기준 조성비(g)-스노우 맨 타입 | |||||
PS(1L 진탕형 반응조) | CS | DB | |||
Water | 600 | PS | 300 | CS | 240 |
MeOH | 70 | Water | 240 | Water | 350 |
Styrene | 100 | TMSPA | 6 | AIBN | 0.1 |
KPS | 0.1 | Styrene | 30 | Styrene | 30 |
SVBS | 0.8 | AIBN | 0.2 | SVBS | 0.2 |
1L 반응기 기준 조성비(g)-역스노우 맨 타입 | |||||
PS(1L 진탕형 반응조) | CS | DB | |||
Water | 300 | PS | 400 | CS | 200 |
MeOH | 35 | Water | 300 | Water | 290 |
Styrene | 50 | TMSPA | 5 | AIBN | 0.4 |
KPS | 0.4 | Styrene | 40 | Styrene | 70 |
SVBS | 1.0 | AIBN | 0.25 | SVBS | 0.6 |
Claims (18)
- 친수성인 제1 고분자 스페로이드 및 소수성인 제2 고분자 스페로이드를 포함하며,상기 제1 고분자 스페로이드 및 제2 고분자 스페로이드는 적어도 부분적으로 상대 고분자 스페로이드를 침투하는 구조로 결합하며,상기 제1 고분자 스페로이드는 코어-쉘 구조를 갖고 상기 쉘은 관능기를 포함하는, 양친매성 이방성 분체.
- 제 1항에 있어서,상기 제1 고분자 스페로이드의 코어와 제2 고분자 스페로이드는 비닐 고분자를 포함하며,상기 제1 고분자 스페로이드의 쉘은 비닐 모노머와 관능기의 공중합체를 포함하는 것을 특징으로 하는 양친매성 이방성 분체.
- 제 2항에 있어서,상기 비닐 고분자는 비닐 방향족계 고분자인 것을 특징으로 하는 양친매성 이방성 분체.
- 제 1항에 있어서,상기 관능기는 실록산인 것을 특징으로 하는 양친매성 이방성 분체.
- 제 1항에 있어서,상기 제1 고분자 스페로이드의 쉘은 친수성 관능기가 추가적으로 도입된 것을 특징으로 하는 양친매성 이방성 분체.
- 제 5항에 있어서,상기 친수성 관능기는 카르복실산기, 설폰기, 포스페이트기, 아미노기, 알콕시기, 에스테르기, 아세테이트기, 폴리에틸렌글리콜기 및 하이드록실기로 이루어진 군에서 선택되는 1 이상인 것을 특징으로 하는 양친매성 이방성 분체.
- 제 1항에 있어서,상기 양친매성 이방성 분체는 제1 고분자 스페로이드 및 제2 고분자 스페로이드가 결합된 결합부를 기준으로 대칭 형상, 비대칭 스노우맨(snowman) 형상 또는 비대칭 역스노우맨 형상을 갖는 것을 특징으로 양친매성 이방성 분체.
- 제 1항에 있어서,상기 양친매성 이방성 분체는 입자 크기가 100 내지 2500 nm인 것을 특징으로 하는 양친매성 이방성 분체.
- 제 1항에 있어서,상기 양친매성 이방성 분체는 2 내지 200 ㎛의 거대 유화 입자를 형성하는 것을 특징으로 하는 양친매성 이방성 분체.
- 제 1항 내지 제 9항 중 어느 한 항의 양친매성 이방성 분체의 제조방법으로서, 상기 방법은(1) 제1 모노머 및 중합 개시제를 교반하여 제1 고분자 스페로이드의 코어를 제조하는 단계;(2) 상기 제조된 제1 고분자 스페로이드의 코어를, 제1 모노머, 중합 개시제 및 관능기를 포함하는 화합물과 교반하여 코팅된 코어-쉘 구조의 제1 고분자 스페로이드를 제조하는 단계;(3) 상기 제조된 코어-쉘 구조의 제1 고분자 스페로이드를, 제2 모노머 및 중합 개시제와 교반하여 제2 고분자 스페로이드가 형성된 이방성 분체를 제조하는 단계; 및(4) 상기 제조된 이방성 분체에 친수성 관능기를 도입하는 단계;를 포함하는 양친매성 이방성 분체의 제조방법.
- 제 10항에 있어서,상기 (1)단계에서 제1 모노머 및 중합 개시제는 100 내지 1000 : 1의 중량비로 혼합하는 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 10항에 있어서,상기 (2)단계에서 관능기를 포함하는 화합물은 실록산 함유 (메타)아크릴레이트인 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 10항에 있어서,상기 (2)단계에서 제1 모노머, 중합 개시제 및 관능기를 포함하는 화합물은 80 내지 98 : 0.2 내지 1.0 : 1 내지 20의 중량비로 혼합하는 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 10항에 있어서,상기 (3)단계에서 제2 모노머 및 중합 개시제는 150 내지 250 : 1의 중량비로 혼합하는 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 10항에 있어서,상기 (3)단계에서 제2 모노머 함량은 코어-쉘 구조의 제1 고분자 스페로이드 중량이 100 중량부일 때 40 내지 300 중량부로 혼합하는 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 10항에 있어서,상기 (4)단계에서 친수성 관능기는 실란 커플링제와 반응 조절제를 이용하여 도입하는 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 16항에 있어서,상기 실란 커플링제는 N-[3-(트리메톡시실릴)프로필]에틸렌디아민인 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
- 제 16항에 있어서,상기 반응 조절제는 암모늄 하이드록사이드인 것을 특징으로 하는 양친매성 이방성 분체의 제조방법.
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JP2017515648A JP2017516912A (ja) | 2014-05-30 | 2015-05-29 | 両親媒性異方性粉体およびその製造方法 |
US15/314,869 US20170190846A1 (en) | 2014-05-30 | 2015-05-29 | Amphiphilic anisotropic powder and method for manufacturing same |
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