KR102256504B1 - Core-shell composites, core-shell composite ion exchange resin for reducing TOC(Total Organic Carbon) and manufacturing method the same - Google Patents

Abstract

One embodiment of the present invention uses a core-shell composite comprising a hydrophilic functional group and a carbon-carbon double bond substituent, and an ion exchange resin in which the core-shell composite is aggregated on the surface thereof, and thus, it is possible to effectively reduce the total organic carbon including nitrogen-based organic compounds in ultrapure water.

Description

Core-shell composites, core-shell composite ion exchange resin for reducing TOC (Total Organic Carbon) and manufacturing method the same}

The present invention relates to a hydrophilic core-shell composite, a core-shell composite ion exchange resin for preparing ultrapure water for reducing total organic carbon, and a method for producing the same.

Nanoparticles exhibit novel material properties that are very different from conventional bulk materials due to their small size. Typical properties include physical properties with a large surface area and chemical properties with excellent reactivity. One of the methods for utilizing these nanoparticles in various fields is to make a core-shell structure using two or more materials.

Nanoparticles having a core-shell structure can express various properties combined with the properties of the two materials by controlling the material of the constituent particles or the thickness ratio between the core and the shell. In addition, it is possible to improve the stability of the entire particle and the dispersibility of the core particle by reducing the reactivity of the core particle by the shell coating, increasing the dispersibility, and increasing the thermal stability.

It is possible to remove environmental pollutants by utilizing the characteristics of such core-shell particles or to make ion exchange resins used in various industrial fields. Ion exchange resins can remove environmental pollutants through cation or anion exchange. Ion exchange resins are generally prepared by preparing polymer particles and then introducing a chemical species having ion exchange capability to the surface of the polymer particles.

For example, core-shell particles with a magnetic material as a core can be used to manufacture ultrapure water (UPW) in electronics, semiconductors, petrochemicals, steel, electricity, textiles, clothing, and medical industries, and can be applied in a variety of ways. . The double bond (vinyl group) of the shell meets the cation and undergoes cationic polymerization to remove impurities.

However, some organic pollutants (Total Organic Carbon, TOC) remain in the ultrapure water used in immersion lithography, which is one of the semiconductor manufacturing processes, causing product defects. In particular, because nitrogen-based organic compounds have hydrophilic properties, there is a problem that it is not easy to react with vinyl groups, so there is a need to develop a shell having a vinyl group and a hydrophilic functional group at the same time.

The technical problem to be achieved by the present invention is to provide a hydrophilic core-shell composite including a hydrophilic functional group and a carbon-carbon double bond substituent and a method for producing the same.

In addition, to provide a core-shell composite ion exchange resin in which a core-shell composite including a hydrophilic functional group and a carbon-carbon double bond substituent is aggregated on the surface of an ion exchange resin matrix.

The technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

In order to achieve the above technical problem, an embodiment of the present invention provides a core-shell composite comprising a hydrophilic functional group and a carbon-carbon double bond substituent.

According to an embodiment of the present invention, a core surface-modified with an intermediate medium and a shell positioned on the core are included, wherein the shell includes a hydrophilic functional group connected to the intermediate medium and a carbon-carbon double bond substituent connected to the hydrophilic functional group. It provides a core-shell composite comprising a.

According to an embodiment of the present invention, the intermediate medium may include a silane-based material.

According to an embodiment of the present invention, the silane-based material may include (3-Chloropropyl) triethoxysilane (CTES), (3-Chloropropyl) trimethoxysilane (CTMS), and (Chloromethyl) triethoxysilane.

According to an embodiment of the present invention, the core may be in the form of a particle or a film.

According to an embodiment of the present invention, the core may include a magnetic material or a metal material, a ceramic material, or a polymer material.

According to an embodiment of the present invention, the core is a metal nanowire, magnetite (Fe ₃ O ₄ ), maghemite (γ-Fe ₂ O ₃ ), cobalt-added magnetic iron oxide, chromium-added magnetic iron oxide and dioxide. It may be any one selected from the group consisting of a chromium magnetic material.

According to an embodiment of the present invention, the hydrophilic functional group may include an ether group.

According to an embodiment of the present invention, the carbon-carbon double bond substituent may include a vinyl group.

In order to achieve the above technical problem, another embodiment of the present invention provides a method for producing a core-shell composite comprising a hydrophilic functional group and a carbon-carbon double bond substituent.

According to an embodiment of the present invention, comprising the steps of forming a surface-modified core by surface-modifying the core with an intermediate medium, and forming a shell by reacting an end of the intermediate medium with a shell part precursor, wherein the shell is It provides a method for producing a core-shell composite comprising a hydrophilic functional group connected to an intermediate medium and a carbon-carbon double bond substituent connected to the hydrophilic functional group.

According to an embodiment of the present invention, in the step of forming the surface-modified core, the intermediate medium may include a silane-based material including a halogen group.

According to an embodiment of the present invention, the silane-based material including a halogen group may include (3-Chloropropyl) triethoxysilane (CTES), (3-Chloropropyl) trimethoxysilane (CTMS), and (Chloromethyl) triethoxysilane.

According to an embodiment of the present invention, the shell part precursor may include an ether including a vinyl group and a hydroxy group at both ends.

According to an embodiment of the present invention, the ether containing a vinyl group and a hydroxyl group at both ends is selected from the group consisting of EGME (Ethylene Glycol Monovinyl Ether), DEGME (Diethylene Glycol Monovinyl Ether), and PEGME (Polyethylene Glycol Monovinyl Ether). It can be one.

In order to achieve the above technical problem, another embodiment of the present invention provides a core-shell composite ion exchange resin.

According to an embodiment of the present invention, there is provided a core-shell composite ion exchange resin comprising an ion exchange resin matrix and the core-shell composite of claim 1 aggregated on the surface of the ion exchange resin matrix.

According to an embodiment of the present invention, the ion exchange resin matrix may include a polystyrene resin, a polymethyl metagrylate resin, or a mixed resin thereof.

According to an embodiment of the present invention, using a core-shell composite comprising a hydrophilic functional group and a carbon-carbon double bond substituent and an ion exchange resin in which the core-shell composite is aggregated on the surface , Total organic carbon including nitrogen-based organic compounds can be effectively reduced in ultrapure water. It can be widely used in fields using ultrapure water (UPW), such as electronics, semiconductors, petrochemicals, steel, electricity, textiles, clothing, and medical industries.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a schematic diagram of a core-shell composite according to an embodiment of the present invention.
2 is a flowchart of a method for manufacturing a core-shell composite according to an embodiment of the present invention.
3 is a schematic diagram of a method for manufacturing a core-shell composite according to an embodiment of the present invention
4 is a schematic diagram of an ion exchange resin according to an embodiment of the present invention.
5 is a flow chart of a method for manufacturing an ion exchange resin according to an embodiment of the present invention.
6 is a schematic diagram of a method for manufacturing an ion exchange resin according to an embodiment of the present invention.
7 is an SEM image of a core-shell composite according to an embodiment of the present invention.
8 is a FT-IR (TM mode) spectrum of a core-shell composite according to an embodiment of the present invention.
9 is an image of an ion exchange resin according to an embodiment of the present invention.
10 is a graph of the performance of an ion exchange resin according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and therefore is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, bonded)" with another part, it is not only "directly connected", but also "indirectly connected" with another member in the middle. "Including the case. In addition, when a part "includes" a certain component, this means that other components may be further provided, not excluding other components, unless specifically stated to the contrary.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof does not preclude in advance.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A core-shell composite according to an embodiment of the present invention will be described.

Referring to FIG. 1, a core-shell composite according to an embodiment of the present invention includes a core surface-modified with an intermediate medium and a shell positioned on the core, wherein the shell is the intermediate It is characterized in that it comprises a hydrophilic functional group connected to the mediator and a carbon-carbon double bond substituent connected to the hydrophilic functional group.

The intermediate medium is characterized in that it contains a silane-based material.

The silane-based material may contain a halogen group.

For example, the silane-based material may include (3-Chloropropyl) triethoxysilane (CTES), (3-Chloropropyl) trimethoxysilane (CTMS), and (Chloromethyl) triethoxysilane.

These intermediates can modify the surface of the core to contain halogen groups, so that the next reaction that forms the shell can take place. For example, the surface of the core may be modified to include a Cl group, and the Cl group may be removed in the form of HCl by meeting hydrogen of a hydroxy group in a reaction to form a shell.

The core may be in the form of particles and films.

The core may include a magnetic material, a metal material, a ceramic material, or a polymer material.

For example, the magnetic material is _{composed of metal nanowires, magnetite (Fe 3} O ₄ ), maghemite (γ-Fe ₂ O ₃ ), magnetic iron oxide added with cobalt, magnetic iron oxide added with chromium, and chromium dioxide magnetic material. It may be any one selected from the group. Preferably, it may be magnetite having excellent magnetic field properties.

For example, the metal material may include Ag, Au, Ni, and Fe.

For example, the ceramic material may include SiO ₂ , Fe ₂ O ₃ , Al ₂ O ₃ , and TiO ₂ .

The hydrophilic functional group may include an ether group. The organic carbon and nitrogen-based organic compounds present in the liquid (for example, ultrapure water) have hydrophilic properties, so it may not be easy to react with vinyl groups.However, by imparting hydrophilicity to the shell, it helps to cause the cationic polymerization reaction better. I can.

The carbon-carbon double bond substituent may include a vinyl group. The double bond of the vinyl group encounters a cation and undergoes cationic polymerization, thereby reducing organic carbon and nitrogen-based organic compounds having cationic properties in a liquid.

A method of manufacturing a core-shell composite according to an embodiment of the present invention will be described.

Referring to Figure 2, the method of manufacturing a core-shell composite according to an embodiment of the present invention, the step of forming a surface-modified core by surface-modifying the core with an intermediate medium (S110), the end and the shell portion of the intermediate medium And forming a shell by reacting a precursor (S120), wherein the shell comprises a hydrophilic functional group connected to the intermediate medium and a carbon-carbon double bond substituent connected to the hydrophilic functional group.

First, the core is surface-modified with an intermediate medium to form a surface-modified core (S110).

The intermediate medium is characterized in that it contains a silane-based material containing a halogen group.

The silane-based material including the halogen group may include (3-Chloropropyl) triethoxysilane (CTES), (3-Chloropropyl) trimethoxysilane (CTMS), and (Chloromethyl) triethoxysilane.

Depending on the material to be adsorbed, the halogen group of the silane-based material may be substituted with another functional group, and through this, a shell having a different functional group may be selectively synthesized.

The silane-based material serves to mediate the surface of the core to synthesize a shell having hydrophilicity and hydrophobicity at the same time.

For example, when the magnetic particle core is reacted with 3-Chloropropyl)triethoxysilane (CTES), which is a silane-based intermediate medium, a surface-modified core having a Cl group at the terminal may be formed.

The surface modification may be performed by reacting the core and the intermediate medium by a sol-gel method.

The sol-gel process is a method of synthesizing a homogeneous and high-purity solid material from precursors such as metal salts or metal alkoxides at room temperature or low temperature. It is mainly used for the synthesis of metal oxide particles, but can also be used for the production of organic-inorganic composites or hybrid materials. The sol-gel process allows control of particle size and shape.

Next, it includes a step (S120) of forming a shell by reacting the end of the intermediate medium and the precursor of the shell portion.

The shell part precursor is characterized in that it contains an ether containing a vinyl group and a hydroxy group at both ends. For example, it may include one selected from the group consisting of Ethylene Glycol Monovinyl Ether (EGME), Diethylene Glycol Monovinyl Ether (DEGME), and Polyethylene Glycol Monovinyl Ether (PEGME).

For example, when the surface-modified core is reacted with EGME (Ethylene Glycol Monovinyl Ether), DEGME (Diethylene Glycol Monovinyl Ether) and PEGME (Polyethylene Glycol Monovinyl Ether), HCl is removed and an ether group connected to the intermediate medium on the core and A core-shell complex including a vinyl group connected to the ether group may be formed.

A core-shell composite ion exchange resin according to an embodiment of the present invention will be described.

Referring to FIG. 4, the ion exchange resin according to an embodiment of the present invention includes an ion exchange resin matrix and a core-shell complex of claim 1 aggregated on the surface of the ion exchange resin matrix.

The parent body of the ion exchange resin is characterized in that it contains a polystyrene resin, a polymethyl metagrylate resin, or a mixed resin thereof.

In the present invention, since the vinyl group in the shell portion plays a role of adsorption, the parent body of the ion exchange resin is not selected according to the purpose of adsorption, the type of adsorbed material, etc., and the core-shell complex must be aggregated on the surface of the ion exchange resin. The appropriate ion exchange resin matrix should be selected. Since it is sufficient as long as it can be charged with (+) on the surface of the ion exchange resin, the selection of the parent body is wider than that of the prior art, and the type of the resin is not limited.

Referring to FIG. 5, the method of manufacturing a core-shell composite ion exchange resin includes the steps of forming a surface-modified core by surface-modifying the core with an intermediate medium (S210), by reacting the end of the intermediate medium with a precursor of the shell portion. It characterized in that it comprises forming a shell to form a core-shell composite (S220) and agglomerating the core-shell composite on the surface of the ion exchange resin (S230).

Aggregating the core-shell composite on the surface of the ion exchange resin may include ultrasonic treatment or stirring. While dropping the solution containing the core-shell composite, it may be stirred using a mechanical stirrer, or vibration may be applied by applying ultrasonic waves to the reactor.

The aggregation may be due to a difference in charge state between the core-shell composite and the ion exchange resin. Aggregation refers to the formation of a large mass by entanglement of negatively charged colloidal particles by the positively charged coagulant and van der Waals attraction. Aggregation can be divided into a step in which the potential of the particle surface is first stabilized to neutralize the charge, and a step in which the neutralized particles are aggregated due to the second stabilization. However, it is not easy to distinguish the monomolecular inorganic polymer coagulant because the first stabilization step and the second stabilization step are performed almost simultaneously.

Hereinafter, a manufacturing example of the present invention will be described in detail with reference to the accompanying drawings.

Throughout the specification, @ is a symbol indicating a material that forms a core-shell complex, meaning a material forming a core in front of the @, and a material forming a shell in the back. The structure of the core-shell consists of a form surrounding the core material in which the material forming the shell is present at the center.

3, a core-shell composite according to an embodiment of the present invention was manufactured.

Preparation Example 1-Core-shell composite Fe ₃ O ₄ @CTES+EGME manufacturing

Fe ₃ O ₄ in the (3-Chloropropyl) of triethoxysilane (CTES) sol-gel method was allowed to react with to form a surface-modified core of Fe ₃ O ₄ @CTES, the Fe ₃ O ₄ and the shell part @CTES precursor EGME (Ethylene Glycol Monovinyl Ether) was reacted to prepare a core-shell composite, Fe ₃ O ₄ @CTES+EGME.

Preparation Example 2-Core-shell composite Fe ₃ O ₄ @CTES+DEGME manufacturing

Fe ₃ O ₄ in the (3-Chloropropyl) of triethoxysilane (CTES) sol-gel method was allowed to react with to form a surface-modified core of Fe ₃ O ₄ @CTES, the Fe ₃ O ₄ and the shell part @CTES precursor DEGME (Diethylene Glycol Monovinyl Ether) was reacted to prepare a core-shell composite, Fe ₃ O ₄ @CTES+DEGME.

6, a core-shell composite ion exchange resin according to an embodiment of the present invention was prepared.

Manufacturing Example A- Ion Exchange Resin IER/Fe ₃ O ₄ @CTES+EGME manufacturing

With reference to Preparation Example 1, the core-shell composite Fe ₃ O ₄ @CTES+EGME was prepared.

_{Next, the core-shell complex ion in which Fe 3} O ₄ @CTES+EGME is physically aggregated on the surface of the ion exchange resin by sonicating the ion exchange resin matrix and the Fe ₃ O _{4 @CTES+EGME in ultrapure water.} Exchange resin IER/Fe ₃ O ₄ @CTES+EGME was prepared.

Manufacturing Example B- Ion Exchange Resin IER/Fe ₃ O ₄ @CTES+DEGME manufacturing

With reference to Preparation Example 2, the core-shell composite Fe ₃ O ₄ @CTES+DEGME was prepared.

Next, the ion exchange resin and the Fe ₃ O ₄ @CTES+DEGME are sonicated in ultrapure water to physically aggregate the core-shell complex _{with Fe 3} O _{4 @CTES+DEGME on the surface of the ion exchange resin.} Resin IER/Fe ₃ O ₄ @CTES+DEGME was prepared.

Comparative example

The ion exchange resin IER/Fe ₃ O ₄ was prepared _{by agglomerating Fe 3} O ₄ in the ion exchange resin matrix.

Experimental example

7 is an SEM image of a core-shell composite according to an embodiment of the present invention.

With reference to Preparation Example 1 and Preparation Example 2, Fe ₃ O ₄ @CTES+EGME, Fe ₃ O ₄ @CTES+DEGME core-shell composite was prepared.

8 is a FT-IR (TM mode) spectrum of a core-shell composite according to an embodiment of the present invention.

8, except for Fe ₃ O _4, Fe ₃ O ₄ @CTES, Fe ₃ O ₄ @ CTES + EGME and Fe ₃ O ₄ to be able to observe the peak of the Si in the + @ CTES DEGME material, wherein It can be seen that the materials have been silanized.

C1s Cl2p Fe2p O1s Si2p Fe ₃ O ₄ @CTES 36.54 5.99 8.84 39.51 9.12 Fe ₃ O ₄ @CTES+EGME (Preparation Example 1) 52.96 1.49 6.49 35.73 3.34 Fe ₃ O ₄ @CTES+DEGME (Preparation Example 2) 49.92 3.46 6.25 34.78 5.6

Table 1 is XPS data for determining whether silane is included in Preparation Examples 1 and 2. Referring to Table 1, it can be seen that a silane-based material is located on the surface of the _{Fe 3} O _{4 particles.}

N1s Fe ₃ O ₄ @CTES+EGME 0 Fe ₃ O ₄ @CTES+EGME +Urea 0.8 Fe ₃ O ₄ @CTES+EGME +TMA 1.16 Fe ₃ O ₄ @CTES+DEGME 0 Fe ₃ O ₄ @CTES+DEGME +Urea 1.16 Fe ₃ O ₄ @CTES+DEGME +TMA 0.73

Table 2 is XPS data for examining the TOC reduction effect of _{Fe 3} O ₄ @CTES+EGME (Preparation Example 1) and Fe ₃ O ₄ @CTES+DEGME (Preparation Example 2) according to the present invention.

Looking at the experimental method in detail, first, _{0.3 g of Fe 3} O ₄ @CTES+EGME and Fe ₃ O ₄ @CTES+DEGME samples were added to 25 ml of 45wt% Urea/TMA (Trimethyl ammonium) solution and stored in a shaker for 4 days. Next, after washing with DI water three times, drying in a vacuum oven at 35°C, XPS analysis was performed.

Looking through the Urea/TMA test in Table 2, the nitrogen peak was confirmed as a result of XPS analysis, and Fe ₃ O ₄ @CTES+EGME and Fe ₃ O ₄ @CTES+DEGME effectively removed nitrogen-based organic compounds to reduce TOC. It was confirmed that it can be increased.

9 is an image of an ion exchange resin according to an embodiment of the present invention.

Referring to FIG. 9, it can be seen that the core-shell complex was aggregated on the surface of the ion exchange resin.

10 is a graph of the performance of an ion exchange resin according to an embodiment of the present invention.

Referring to Figure 10, MIEX, Cationic IER, and Cationic IER/Fe ₃ O ₄ (Comparative Example) is a control, Cationic IER/Fe ₃ O ₄ @CTES+EGME (Preparation Example A) and Cationic IER/Fe ₃ O ₄ @CTES+DEGME (Preparation Example B) is an experimental group.

The terminology description of FIG. 10 is as follows.

MIEX: Magnetic ion exchange resin (made in Australia)

Cationic IER: Cation exchange resin (manufactured by Samyang Corporation)

Cationic IER/Fe ₃ O ₄ : Magnetic ion exchange resin (pure magnetic composite resin)

Cationic IER/Fe ₃ O ₄ @CTES+EGME: Hydrophilic magnetic ion exchange resin

Cationic IER/Fe ₃ O ₄ @CTES+DEGME: Hydrophilic magnetic ion exchange resin

Referring to Figure 10, the experimental group Cationic IER/Fe ₃ O ₄ @CTES+EGME and Cationic IER/Fe ₃ O ₄ @CTES+DEGME are TOC compared to the control groups MIEX, Cationic IER, and Cationic IER/Fe ₃ O ₄ It can be seen that the reduction effect is far superior.

According to an embodiment of the present invention, using a core-shell composite comprising a hydrophilic functional group and a carbon-carbon double bond substituent and an ion exchange resin in which the core-shell composite is aggregated on the surface , Total organic carbon including nitrogen-based organic compounds can be effectively reduced in ultrapure water. It can be widely used in fields using ultrapure water (UPW), such as electronics, semiconductors, petrochemicals, steel, electricity, textiles, clothing, and medical industries.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that other specific forms can be easily modified without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

Claims (15)

A core surface-modified with an intermediate medium; And
A shell located on the core; Including,
The intermediate medium is a silane-based material containing a halogen group,
The shell is a core-shell complex, characterized in that it comprises a hydrophilic functional group connected to the core surface-modified by the intermediate medium by substituting the halogen group, and a carbon-carbon double bond substituent connected to the hydrophilic functional group. delete The method of claim 1, wherein the silane-based material containing a halogen group,
A core-shell composite comprising CTES ((3-Chloropropyl)triethoxysilane), CTMS ((3-Chloropropyl)trimethoxysilane), and (Chloromethyl)triethoxysilane. The method of claim 1, wherein the core,
A core-shell composite, characterized in that it is in the form of particles or films. The method of claim 1, wherein the core,
A core-shell composite comprising a magnetic material, a metal material, a ceramic material, or a polymer material. The method of claim 1, wherein the core,
Any one selected from the group consisting of metal nanowires, magnetite (Fe ₃ O ₄ ), maghemite (γ-Fe ₂ O ₃ ), cobalt-added magnetic iron oxide, chromium-added magnetic iron oxide, and chromium dioxide magnetic material A core-shell composite characterized by. The method of claim 1, wherein the hydrophilic functional group,
A core-shell composite comprising an ether group. The method of claim 1, wherein the carbon-carbon double bond substituent,
A core-shell composite comprising a vinyl group. Forming a surface-modified core by surface-modifying the core with an intermediate medium; And
Forming a shell by reacting an end of the intermediate medium with a precursor of the shell portion; Including,
The intermediate medium is a silane-based material containing a halogen group,
The shell is a method for producing a core-shell composite, characterized in that the shell comprises a hydrophilic functional group connected to the core surface-modified by the intermediate medium by substituting the halogen group, and a carbon-carbon double bond substituent connected to the hydrophilic functional group. delete The method of claim 9, wherein the silane-based material containing a halogen group,
CTES ((3-Chloropropyl) triethoxysilane), CTMS ((3-Chloropropyl) trimethoxysilane), and (Chloromethyl) triethoxysilane, characterized in that it comprises a core-shell composite manufacturing method. The method of claim 9, wherein the shell part precursor material,
A method for producing a core-shell composite, comprising an ether containing a vinyl group and a hydroxy group at both ends. The method of claim 12, wherein the ether containing a vinyl group and a hydroxy group at both ends,
Core-shell composite manufacturing method, characterized in that one selected from the group consisting of EGME (Ethylene Glycol Monovinyl Ether), DEGME (Diethylene Glycol Monovinyl Ether), and PEGME (Polyethylene Glycol Monovinyl Ether). Ion exchange resin matrix; And
The core-shell composite of claim 1 aggregated on the surface of the ion exchange resin matrix; Core-shell complex ion exchange resin comprising a. The method of claim 14,
The ion exchange resin matrix is a core-shell composite ion exchange resin comprising a polystyrene resin, a polymethyl metagrylate resin, or a mixed resin thereof.

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