KR20140112775A - Microporous polymer and fabricating method thereof - Google Patents

Abstract

Provided are a porous polymer having a hypercrosslinked bonding structure by an aromatic ring and a crosslinking agent and comprising micro pores, and a carbon dioxide absorbent including the porous polymer. The aromatic ring is one or more kind of porous polymer selected from a group composed of a substituted or unsubstituted mononuclear, a substituted or unsubstituted dinuclear, and a substituted or unsubstituted polynuclear. The porous polymer according to an embodiment of the present invention has quinoids composing a polymer matrix having a flat form, being stiff, forming micro pores, and maintaining constant diameter of pores.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a microporous polymer,

The present invention relates to a microporous polymer and a method of manufacturing the same. More particularly, the present invention relates to a method for separating carbon dioxide, which is the most important influence on global warming, as an adsorbent using adsorption and absorption processes, The present invention relates to a porous polymer having micropores capable of adsorbing and controlling toxic gases such as compounds, nitrogen compounds, and sulfur compounds, and capable of adsorption control on heavy metals and the like, and a method for producing the same.

Recent methods for the reduction and treatment of carbon dioxide include absorption, adsorption, and membrane separation as post-combustion separation processes, and decarbonization is a pre-combustion separation process.

The absorption method, which is currently being commercialized in the process of separation after combustion, is a method of absorbing and separating carbon dioxide using a liquid amine-based absorbent, desorbing it by heat-applying the carbon dioxide chemically bonded to the amine, and isolating the carbon dioxide at a high concentration. At this time, the amine-based absorbent is used together with water, and the mass transfer in the solution of carbon dioxide acts as a rate-determining step. In addition, a large amount of energy is required in the separation process of the carbon dioxide-absorbed solution, and an additional purification process according to the oxidation of the used amine is indispensably required. Therefore, the process is very complicated, so facility and equipment costs are the highest among the existing CO2 separation methods. Therefore, it is advantageous in separation from a large-sized source but it is difficult to apply to a small-scale source. In addition, in the case of using a high-temperature dry absorbent (Korean Patent No. 10-060209), there is an advantage in that a high concentration of carbon dioxide can be directly obtained in a separation process of carbon dioxide and a dry absorbent, but the operation temperature is very high, This has big disadvantages. In addition, the membrane separation method is very expensive, and the equipment cost of the pretreatment apparatus for purifying the combustion gas is very high, and the cost for replacement and purification due to contamination of the separation membrane is very large. In the case of the adsorption method, the presently used method mainly uses the pressure change and the temperature change, and the separation step is operated by changing the pressure and the temperature at the same time. At this time, zeolite molecular sieve or activated carbon, carbon molecular sieve and potassium system are mainly used as an adsorbent. In the case of zeolite molecular sieve, the adsorption efficiency is high, but the problem is caused by contamination by other components contained in the combustion gas and the desorption temperature is relatively high. In the case of activated carbon, the adsorption amount is lower than that of zeolite, High temperature is required for thermal desorption and additional energy cost is required by performing adsorption at high pressure for efficient use. Therefore, in order to increase the efficiency of adsorbing and separating carbon dioxide, it is operated at a high pressure in most cases, and since a high concentration of carbon dioxide can not be separated during the separation process, a high concentration of carbon dioxide is separated through a number of steps. In addition, since the adsorption amount of the adsorbent is greatly influenced by the temperature, the adsorption amount of the adsorbent is cooled to be supplied at a low temperature before the separation step, and the amount of adsorption due to moisture is greatly decreased. There is a disadvantage that a lot of power ratio is required due to such a driving method and restrictions, and it is difficult to increase the size. In addition, since the inorganic solid adsorbent is manufactured using a binder to prepare particles, the adsorbent per unit weight is decreased and the durability is low in the fluidized bed or moving bed due to high abrasion, so that the lifetime of the adsorbent is small. In the case of an adsorbent prepared using a transition metal such as potassium, the reaction and separation occur repeatedly in the solid phase during the chemical absorption process, so that fatigue accumulates in the structure, resulting in fracture, and poisoning by acid gas occurs. In addition, most of the solid adsorbents have a disadvantage in that the separation efficiency is low due to high energy selectivity due to high energy consumption due to separation of adsorbed or absorbed carbon dioxide at high temperature.

The present invention has been made in order to overcome the above problems of the adsorbent, and it is an object of the present invention to provide an adsorbent for absorbing and absorbing carbon dioxide, The amount of adsorption of the porous polymer is very small. Also, it shows a high adsorption amount at 50 ~ 80 ℃ after passing through the removal device of polluting gas such as sulfur compound due to exhaust gas regulation in the emission source of fossil fuel use, and the influence due to the water present in partial pressure corresponding to the vapor pressure of water at the temperature And a porous polymer capable of desorbing carbon dioxide at 150 ° C or lower.

The porous polymer having micropores of the present invention is intended not only for separation of carbon dioxide but also for various uses. For example, it can be used as various adsorbents and catalysts by separation of various organic compounds such as gaseous or liquid phase, adsorption and absorption of acidic gas, alkali gas, heavy metals, etc. and polymerization of the present adsorbent and functional groups or carrying various catalyst precursors A porous polymer which can be used as a microporous polymer adsorbent which can be used as a medicine, and a process for producing the same.

According to one embodiment of the present invention, there is provided a porous polymer having a microcapsule having a super-crosslinked structure by an aromatic ring and a crosslinking agent.

According to another embodiment of the present invention, there is provided a carbon dioxide adsorbent comprising the porous polymer.

According to another embodiment of the present invention, there is provided a carbon dioxide adsorbent comprising a porous polymer having a super-crosslinked structure selected from the following Chemical Formulas 1 to 5 and containing micropores.

    [Chemical Formula 1] < EMI ID =

    [Chemical Formula 3]

    [Chemical Formula 5]

According to another embodiment of the present invention, there is provided a method for preparing a mixed solution, comprising: mixing an aromatic ring compound, a crosslinking agent and a redox catalyst in an organic solvent to form a mixed solution; Forming a porous polymer having a super-crosslinked structure by reacting the mixed solution by heating; And purifying and drying the polymer to obtain a final product.

According to another embodiment of the present invention, there is provided a method for producing a porous polymer, comprising: providing a porous polymer having a super-crosslinked structure by an aromatic ring and a crosslinking agent, the porous polymer comprising micropores; Absorbing a volatile organic compound, an acid gas, an alkali gas or a heavy metal using the micropores of the porous polymer; And a step of raising the temperature of the porous polymer to separate a volatile organic compound, an acid gas, an alkali gas or a heavy metal.

In the porous polymer according to an embodiment of the present invention, the quinoids constituting the polymer matrix are planar and rigid to form micropores, and the diameter of the pores is kept constant. In addition, a high selection of the CO ₂ to N ₂ is very large surface area because there is no amino group also, a low moisture influence other exhibits excellent absorption capacity at a temperature higher than the operating temperature of the adsorbent. Since the desorption temperature is lower than the desorption temperature of the solid adsorbent, it is possible to switch the operation of quick sucking and desorption.

When the present adsorbent is applied to the separation process of carbon dioxide, it can exhibit a high operation effect, and it is possible to operate the separation process smoothly and economically by supplementing the disadvantages of the chemical absorption method using amine and the adsorption method using solid adsorbent. Therefore, the separation of carbon dioxide, which is a main cause of global warming, can be performed and a cleaner indoor environment can be provided when a small indoor is applied.

1 is a process flow chart showing a method for producing a porous polymer having micropores.
2 is an FT-IR spectrum showing anthracene, phenanthrene and super-crosslinked polymers thereof.
3 shows the FT-IR spectrum of a polymer synthesized using a non-redox catalyst ZnCl ₂ .
Figure 4 shows the DRS UV-Vis spectrum of a super-crosslinked naphthalene polymer synthesized using a ZnCl ₂ catalyst.
5 shows the structure of a super-crosslinked naphthalene polymer synthesized using a ZnCl ₂ catalyst.

The adsorbent of the present invention is an adsorbent capable of compensating for the disadvantages of the adsorbents listed above and enhancing the adsorption separation efficiency. In addition, the adsorbent can be used for various purposes other than separation of carbon dioxide. It is possible to adsorb and separate volatile organic compounds, acidic and alkaline gases, heavy metals, etc. using micropores, which can be done in gas phase and liquid phase. In addition, since it has a polymer structure, it is resistant to abrasion and has elasticity. Therefore, it can be used in various powder processes. It exhibits high adsorption efficiency at a temperature range of 30 ° C. to 90 ° C. than that of the existing adsorbent, Since the bonding energy between the surface of the polymer structure adsorbent of the present invention and carbon dioxide is small during the adsorption process, desorption energy amount is much lower than other adsorbents. Therefore, the carbon dioxide separation process shows better performance than other solid adsorbents and solid absorbents due to low energy consumption, high resolution, and excellent selectivity.

Hereinafter, various embodiments of the present invention will be described in detail.

According to one embodiment of the present invention, there is provided a porous polymer having a microcapsule having a super-crosslinked structure by an aromatic ring and a crosslinking agent.

The super-crosslinked structure is formed such that the aromatic rings are connected to each other by the crosslinking agent, and the surface area and the void volume of the porous polymer can be controlled by adjusting the molar ratio of the crosslinking agent to the aromatic ring.

The aromatic ring may be at least one member selected from the group consisting of substituted or unsubstituted mononuclear, substituted or unsubstituted dinuclear, and substituted or unsubstituted polynuclear aromatic rings. The aromatic ring may have a cyclic structure having 6 or more carbon atoms, for example, 6 to 50 carbon atoms, preferably 6 to 14 carbon atoms.

"Substituted" in the expression " substituted or unsubstituted ", as used herein, means that at least one hydrogen atom in the hydrocarbon is each independently replaced with the same or different substituents. Useful substituents include, but are not limited to:

Such substituents include, but are not limited to, -F; -Cl; -Br; -CN; -NO ₂ -OH; A C ₁ -C ₂₀ alkyl group which is unsubstituted or substituted by -F, -Cl, -Br, -CN, -NO ₂ or -OH; A C ₁ -C ₂₀ alkoxy group unsubstituted or substituted with -F, -Cl, -Br, -CN, -NO ₂ or -OH; A C ₆ -C ₃₀ aryl group which is unsubstituted or substituted by a C ₁ -C ₂₀ alkyl group, a C ₁ -C ₂₀ alkoxy group, -F, -Cl, -Br, -CN, -NO ₂ or -OH; A C ₆ -C ₃₀ heteroaryl group which is unsubstituted or substituted by a C ₁ -C ₂₀ alkyl group, a C ₁ -C ₂₀ alkoxy group, -F, -Cl, -Br, -CN, -NO ₂ or -OH; C ₁ -C ₂₀ alkyl, C ₁ -C ₂₀ alkoxy group, -F, -Cl, -Br, -CN , -NO 2 , or substituted by -OH or unsubstituted C ₅ -C ₂₀ cycloalkyl group; C ₁ -C ₂₀ alkyl, C ₁ -C ₂₀ alkoxy group, -F, -Cl, -Br, -CN , -NO 2 , or substituted by -OH or unsubstituted C ₅ -C ₃₀ heterocycloalkyl group; And a group represented by -N (G ₁ ) (G ₂ ). Wherein G ₁ and G ₂ are each independently selected from the group consisting of hydrogen; A C ₁ -C ₁₀ alkyl group; Or a C ₆ -C ₃₀ aryl group substituted or unsubstituted with a C ₁ -C ₁₀ alkyl group.

Specifically, for example, the aromatic ring may be selected from the group consisting of benzene, toluene, xylene, mesitylene, chlorobenzene, phenol, biphenyl, naphthalene, fluorene, anthracene, phenanthrene, 1,3,5-triphenylbenzene and polystyrene And the like.

The matrix of the porous polymer forms a super-crosslinked structure by the reaction between the aromatic ring and the crosslinking agent, and the wide ring structure can provide a large surface area when adsorbing CO ₂ . The super-crosslinked structure has the form of a conjugated quinonoid chromophore. The aromatic rings of the super-crosslinked structure can not be freely rotated by the conjugated structure and the pore structure can be irreversibly fixed. Thus, for gases such as CO ₂ Sorption performance can be maintained.

The surface area of the fine pores varies depending on the kind of the aromatic ring and the crosslinking agent used, but may be 10 to 2,000 m ² / g, preferably 50 to 1,500 m ² / g. If the surface area is less than 50 m < ² > / g, the adsorption amount of carbon dioxide may be low due to a lack of specific surface area, and if the surface area exceeds 1,500 m < ² > / g, .

The average pore diameter of the micropores varies depending on the kind of the aromatic ring and the crosslinking agent used, but may be 0.01 to 100 nm, preferably 0.1 to 50 nm. When the average pore diameter is less than 0.1 nm, the adsorption material can not freely enter and exit according to the pore resistance. If the pore diameter exceeds 50 nm, the adsorption power is decreased and the surface area is decreased.

The porous polymer may have excellent CO ₂ absorption ability. Thus, according to one embodiment of the present invention, there is provided a carbon dioxide adsorbent comprising the porous polymer. For example, the carbon dioxide adsorbent may have a pressure of 1 bar and a CO ₂ adsorption amount of at least 6 wt% as measured by a thermogravimetric analyzer at 25 ° C. The desorption temperature of CO ₂ adsorbed on the carbon dioxide adsorbent may be 150 ° C or less.

According to an embodiment of the present invention, there is provided a carbon dioxide adsorbent comprising a porous polymer having a super-crosslinked structure selected from the following Chemical Formulas 1 to 5 and containing micropores.

 [Chemical Formula 1] < EMI ID =

    [Chemical Formula 3]

    [Chemical Formula 5]

According to one embodiment, the porous polymer having super-crosslinked structures of the above-described Formulas 1 to 5 can be prepared by the following method. 1 is a process flow chart showing a method for producing a porous polymer having micropores. Referring to FIG. 1, in step S1, an aromatic ring compound, a crosslinking agent, and a redox catalyst are mixed in an organic solvent to form a mixed solution. In step S2, the mixed solution is heated to react to form a porous polymer having a super-crosslinked structure. In the next step S3, the polymer is purified and dried to obtain the final product.

Wherein the crosslinking agent is selected from the group consisting of dimethoxymethane, 1,3,5-trioxane, paraformaldehyde?,? '-Dichloro-o-xylene and?,? Or more. Preferably, 1,3,5-trioxane or paraformaldehyde can be used in view of economical efficiency. The redox catalyst may be a Friedel-Crafts catalyst. For example, as a redox catalyst, FeCl ₃ may be used. The -CH ₂ -linkage can be oxidized by the redox catalyst. The super-crosslinked structure thus formed has the form of a conjugated quinoid chromophore.

As a specific example of the above-mentioned production method, there is a method in which monocyclic, binuclear or polynuclear aromatic compounds such as benzene, naphthalene, anthracene or phenanthrene are reacted with 1,3,5-trioxane using FeCl ₃ catalyst, . The final polymer can have a high CO ₂ adsorption capacity of more than 6% by weight of a microporous. The resulting polymer has a conjugated planar rigid superconjugation structure that is not in the form of aromatic rings and -CH ₂ -linked bonds therebetween. As a result, it exhibits a brown color having a broad light absorption ranging from 1100 to 200 nm, which is not colorless.

2 is an FT-IR spectrum showing anthracene, phenanthrene and super-crosslinked polymers thereof. In the anthracene and phenanthrene spectra, peaks due to aromatic CH stretching at 3000 cm <" ¹ > or higher were weak and ring vibrations below 1000 cm < ^-1 > Between 1600 and 1700 cm ^-1 peak represent the characteristics of the skeletal vibration CUNAULT cannabinoid chromotherapy pores (quinonoid chromophores). The peaks due to the -CH ₂ -stretching mode of less than 3000 cm ^-1 and the bending modes between 1500 and 1300 cm ^-1 were very weak.

If ZnCl ₂ , which is not a redox catalyst such as FeCl ₃ , is used as a catalyst, the -CH ₂ - linkage can not be oxidized, so the -CH ₂ - link separates the aromatic nuclei and inhibits the conjugation between them So that the light absorption characteristics of the respective achromatic aromatic monomers are maintained. In this case, since the aromatic ring enables free rotation may be less CO ₂ adsorption capacity.

To confirm this, naphthalene was synthesized in 1,2-dichloroethane using a non-redox catalyst ZnCl ₂ instead of FeCl _{3 in} order to synthesize a super-crosslinked structure of naphthalene by α, α'-dichloro- And crosslinked with xylene. Unlike the redox FeCl ₃ catalyst, ZnCl ₂ can not oxidize the cross-linking with the non-oxidizing ring. It is because of ZnCl ₂ catalyst that α, α'-dichloro-p-xylene was used instead of 1,3,5-trioxane.

3 shows the FT-IR spectrum of a polymer synthesized using a non-redox catalyst ZnCl ₂ . Referring to FIG. 3, the aromatic and aliphatic CH stretching vibrations exhibit characteristic peaks of 3005 and 2903 cm ^-1 , respectively. The aromatic vibrations occur at 1598 and 1509 cm ^-1 . The -CH ₂ -bending mode broadens at 1430 cm ^-1 , which is also common in aromatic ring oscillations. Most major characteristic peaks for the quinoid were not observed above 1600 cm ^-1 .

The light absorption characteristics were also observed by using diffuse reflection ultraviolet-visible light (DRS UV-Vis) spectroscopy. Figure 4 shows the DRS UV-Vis spectrum of a super-crosslinked naphthalene polymer synthesized using a ZnCl ₂ catalyst. Referring to FIG. 4, the polymer showed a pale yellow color and a weak absorption near 500 nm. No major absorption was observed in the entire visible light region and in the vicinity of 1100 nm. As a result, it was found that in the case of this polymer, since ZnCl ₂ is a non-acid cyclic catalyst, it does not affect the crosslinking and quinoid chromophore is not formed. 5 shows the structure of a super-crosslinked naphthalene polymer synthesized using a ZnCl ₂ catalyst.

Hereinafter, the present invention will be described with reference to specific embodiments, but the technical idea of the present invention is not limited by the following embodiments.

≪ Example 1 >

Preparation of Porous Polymer Using Benzene and Paraformaldehyde (BF Porous Tumor)

1.56 g of benzene [Aldrich Chemical Co., USA] and 4.56 g of paraformaldehyde [Aldrich Chemical Co., USA] were added to 100 ml of dichloroethane and 13.949 g of anhydrous ferric chloride [Aldrich Chemical, USA] was added. After the addition, they were mixed so as to be completely mixed at room temperature. After mixing, the mixture was reacted under reflux conditions at 45 DEG C for 5 hours with mixing and then stirred at 80 DEG C for 19 hours or more. After completion of the reaction, the resulting reaction product containing the polymer substance in which paraformaldehyde was cross-linked to the synthesized benzene was allowed to cool and then cooled to room temperature. Then, it was washed three times with methanol, washed once more with acetone solution containing 5% hydrochloric acid, and then washed once more with purified water and finally with methanol. After washing, the obtained product was vacuum dried at 100 ° C to prepare brown porous polymer according to the present invention.

≪ Example 2 >

Preparation of Porous Polymer Using Naphthalene and Paraformaldehyde (NF Porous Tumor)

The porous polymer was prepared in the same manner as in Example 1 except that naphthalene was used instead of benzene. 1.5 g of naphthalene [Aldrich Chemical, USA] was used, and 3.14 g of paraformaldehyde was used.

≪ Example 3 >

Preparation of Porous Polymer Using Toluene and Paraformaldehyde (TF Porous Tumor)

The procedure of Example 1 was repeated except that toluene was used instead of benzene to prepare a porous polymer. 1.5 g of toluene [Aldrich Chemical, USA] was used and 4.37 g of paraformaldehyde was used.

<Example 4>

Preparation of porous polymer using mesitylene and paraformaldehyde (MF porous fine powder)

The porous polymer was prepared in the same manner as in Example 1 except that mesitylene was used instead of benzene. 1.5 g of mesitylene [Aldrich Chemical, USA] was used, and 3.35 g of paraformaldehyde was used.

&Lt; Examples 5 to 8 >

Preparation of Porous Polymers Using Naphthalene and Benzene Mixtures and Paraformaldehyde (NBF Porous Tumor)

(Example 5), 0.6 mol of naphthalene / 0.4 mol of benzene (Example 6), 0.4 mol of naphthalene / 0.2 mol of benzene (Example 5) (Example 7), 0.2 mol of naphthalene / 0.8 mol of benzene (Example 8), and 0.06 mol of paraformaldehyde, respectively, to prepare a porous polymer.

<Comparative Example>

Preparation of Porous Polymer Using Naphthalene Oxide Catalyst and Naphthalene (NF Porous Tumor)

Except that 2.12 g of a non-redox catalyst ZnCl ₂ was used instead of FeCl ₃ , and 0.5 g of naphthalene was dissolved in 20 ml of 1,2-dichloroethane in the presence of α, α'-dichloro and crosslinked with 1.36 g of -p-xylene to prepare a porous polymer.

As a result of observing the polymers obtained from Examples 1 to 8 and Comparative Examples, light brown or dark brown polymers were obtained in Examples 1 to 8. This is because, when the redox type FeCl ₃ catalyst is used, dehydrogenation occurs due to the initial process of crosslinking between aromatic monomers and the extraction of hydride ions. The resulting conjugated quinoid chromophore is colored by this cross-linking and oxidation process.

On the other hand, unlike the redox FeCl ₃ catalyst, ZnCl ₂ can not oxidize the crosslinking due to the non-oxidizing ring. The use of α, α'-dichloro-p-xylene in place of paraformaldehyde is due to the ZnCl ₂ catalyst. As a result, the polymer of Comparative Example was colorless.

<Evaluation>

Diffuse reflective ultraviolet-visible light (DRS UV-Vis) spectra of the samples obtained in the Examples and Comparative Examples were recorded with a SCINCO Neosys 2000 spectrometer. Between FT-IR spectrometer (Nicolet IR 200) 4000 and 400cm ^-1 at room temperature with a resolution of 4cm ^-1 it was recorded transform infrared (FT-IR) spectrum Fourier.

From the results of DRS UV-Vis spectrum and FT-IR spectrum, it can be seen that the polymer of the comparative example exclusively generates π → π ^* electron excitation in the ultraviolet region, while the polymer of the Example exhibits broad absorption in the region of 1100 to 200 nm And the polymer of the examples showed skeletal vibrations of the quinoid chromophore unlike the polymer of the comparative example.

The nitrogen adsorption / desorption isotherms were measured at -196 ° C using a Belsorp mini II sorption analyzer. Before each adsorption measure, the samples were degassed at 150 ° C in a vacuum of less than 10 ^-5 mbar. The surface area was measured from the linear portion of the Brunauer-Emmett-Teller (BET) equation. CO ₂ adsorption / desorption measurements were performed using CO ₂ (99.999% purity) and N ₂ for each sample using a thermogravimetric analyzer (Scinco TGA N1000). Approximately 10 mg of sample was loaded into a platinum sample pan and initial activation was performed at 150 캜 in an N ₂ atmosphere. And lowered to 25 ° C for CO ₂ adsorption. The desorption was carried out by gradually raising the temperature to 25 to 150 캜 while flowing N ₂ .

The BET surface area and CO ₂ sorption capacity of the above Examples and Comparative Examples are shown in Table 1.

Referring to Table 1, the surface area and the carbon dioxide adsorption amount differ depending on the raw materials according to the respective examples, and it can be controlled by the reaction time and the mixing ratio. By the synthesis mixture produced by various combinations of the raw materials It can be seen that it exhibits more excellent adsorption ability.

[Table 1] Pore characteristics and amount of adsorbed carbon dioxide

Claims (16)

A porous polymer having micropores formed by aromatic rings and cross-linking agents and containing micropores. The method according to claim 1,
Wherein the aromatic ring is at least one selected from the group consisting of substituted or unsubstituted mononuclear, substituted or unsubstituted dinuclear, and substituted or unsubstituted polynuclear aromatic rings. The method according to claim 1,
Wherein the aromatic ring is selected from the group consisting of benzene, toluene, xylene, mesitylene, chlorobenzene, phenol, biphenyl, naphthalene, fluorene, anthracene, phenanthrene, 1,3,5-triphenylbenzene and polystyrene Porous polymer. The method according to claim 1,
Wherein the super-crosslinked structure is in the form of a conjugated quinoid chromophore. The method according to claim 1,
Wherein the surface area of the micropores is 50 to 1,800 m ² / g. The method according to claim 1,
Wherein the average pore diameter of the micropores is 0.1 to 50 nm. A carbon dioxide adsorbent comprising the porous polymer according to any one of claims 1 to 6. 8. The method of claim 7,
A carbon dioxide adsorbent having a pressure of 1 bar and an adsorption amount of CO ₂ of 6 wt% or more as measured by a thermogravimetric analyzer at 25 ° C. A carbon dioxide adsorbent comprising a porous polymer having a super-crosslinked structure selected from the following Chemical Formulas 1 to 5 and containing micropores.
[Chemical Formula 1] &lt; EMI ID =

[Chemical Formula 3]

[Chemical Formula 5]

10. The method of claim 9,
A pressure of 1 bar and an adsorption amount of CO ₂ as measured by a thermogravimetric analyzer at 25 ° C of not less than 6% by weight and a desorption temperature of adsorbed CO ₂ of not more than 150 ° C. Mixing an aromatic ring compound, a cross-linking agent and a redox catalyst in an organic solvent to form a mixed solution;
Forming a porous polymer having a super-crosslinked structure by reacting the mixed solution by heating; And
And purifying and drying the polymer to obtain a final product. 12. The method of claim 11,
Wherein the crosslinking agent is selected from the group consisting of dimethoxymethane, 1,3,5-trioxane, paraformaldehyde,?,? '-Dichloro-o-xylene and?,? Wherein the porous polymer is at least one species selected from the group consisting of. 12. The method of claim 11,
Wherein the redox catalyst is a Friedel-Crafts catalyst. 12. The method of claim 11,
Wherein the -CH ₂ - crosslinking is oxidized by the redox catalyst. 12. The method of claim 11,
Wherein the super-crosslinked structure has the form of a conjugated quinoid chromophore. Providing a porous polymer having a super-crosslinked structure by an aromatic ring and a crosslinking agent and containing micropores;
Absorbing a volatile organic compound, an acid gas, an alkali gas or a heavy metal using the micropores of the porous polymer; And
And heating the porous polymer to separate a volatile organic compound, an acid gas, an alkali gas or a heavy metal.

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