High polyaromatic disulfide type organic solvent absorbent and preparation method thereof

Abstract

The invention relates to the technical field of materials, and discloses a high polyaromatic disulfide type organic solvent absorbent and a preparation method thereof, and the preparation method specifically comprises the following steps: 1, dissolving a raw material TDSR solid in ultra-dry dichloromethane to obtain a TDSR solution; 2, adding 20.0-25.0 [mu] L of an organic solvent I and a TDSR solution into a sample bottle, sealing, standing for 10-20 days, opening the sample bottle, and naturally volatilizing the ultra-dry dichloromethane and the organic solvent I to obtain the high polyaromatic disulfide type organic solvent absorbent HDSC; wherein the raw material TDSR is prepared by the following specific steps: dissolving 50-55 mg of a sulfydryl monomer compound in 60-65 mL of an organic solvent II, stirring, and reacting for 6-8 days; and adding silica gel powder, carrying out rotary evaporation to remove the organic solvent II, carrying out column purification, and separating to obtain the trimeric alkoxylated aromatic disulfide TDSR. The preparation method has the innovation points that the preparation method is simple, the energy consumption is low, the condition is mild, the obtained absorbent can absorb an organic solvent instead of water, and the removal efficiency of the absorbent on the organic solvent is improved.

Description

Technical Field

[0001] The invention relates to the technical field of materials, and in particular to a high-polymer aromatic disulfide type organic solvent absorbent and a preparation method thereof. Background Art

[0002] Industrial wastewater often contains volatile organic compounds (organic solvents) such as benzene, esters, ketones, and halogenated hydrocarbons, which can seriously damage the kidneys, liver, brain, nervous system, and reproductive system of human beings, causing serious consequences such as memory loss and infertility, and may even cause cancer. Therefore, it is particularly important to control volatile organic compounds (organic solvents) in industrial wastewater. Common methods for controlling organic compounds in wastewater include: adsorption, biodegradation, gas stripping, pervaporation, extraction, ultrasonication, hydrolysis, photodegradation, etc. Absorption has become an important means of controlling volatile organic compounds due to its large absorption capacity, recyclability, fast absorption rate, high removal efficiency, and strong enrichment ability. Absorption usually uses oil-absorbing materials as absorbents to absorb harmful substances to achieve the purpose of removing pollution.

[0003] At present, the research on oil-absorbing materials has made a series of gratifying progress. The types of oil-absorbing materials for treating volatile organic compounds in wastewater are becoming increasingly diverse. However, most absorbents, such as inorganic absorbents such as activated carbon and diatomaceous earth and organic absorbents such as wood fiber, straw, and sponge, have a common disadvantage: they absorb both organic solvents and water, which greatly reduces the absorption of volatile organic compounds by the absorbent, reduces the removal efficiency of volatile organic compounds by the absorbent, and limits the application and development of absorbents.

[0004] Therefore, developing an absorbent that absorbs organic solvents but does not absorb water is a problem that those skilled in the art urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a high-polymer aromatic disulfide type organic solvent absorbent and a preparation method thereof to solve the technical problem that the existing absorbent absorbs both organic solvents and water, reduces the absorption amount of volatile organic compounds, and reduces the removal efficiency of volatile organic compounds.

[0006] The present invention provides a method for preparing a high-polymer aromatic disulfide type organic solvent absorbent, comprising the following steps:

[0007] Step 1: dissolving the raw material TDSR solid in ultra-dry dichloromethane to obtain a TDSR solution;

[0008] Step 2: Add 20.0-25.0 μL of organic solvent 1 and TDSR solution into a sample bottle, seal it, and let it stand for 10-20 days, preferably 15-20 days, to generate different types of thiol free radicals, which undergo polymerization to generate polymers. Open the sample bottle and wait for the organic solvent 1 to evaporate naturally to obtain a high-polymer aromatic disulfide organic solvent absorbent HDSC.

[0009] Preferably, in the above-mentioned method for preparing the high-poly aromatic disulfide type organic solvent absorbent, the raw material TDSR is prepared by the following method:

[0010] Step 1: dissolving 50-55 mg of thiol monomer compound 1 in 60-65 mL of organic solvent 2, stirring and reacting for 6-8 days;

[0011] Step 2: Add silica gel powder, remove organic solvent 2 by rotary evaporation, and separate and obtain trimerized alkoxylated aromatic disulfide TDSR by column purification.

[0012] Preferably, in the preparation method of the above-mentioned high-polymer aromatic disulfide-type organic solvent absorbent, the TDSR solid is 2.5-3.5 mg, the ultra-dry dichloromethane is 70-78 μL, and the concentration of the TDSR solution is 35-45 g / L.

[0013] Preferably, in the preparation method of the above-mentioned high-polymer aromatic disulfide type organic solvent absorbent, the organic solvent one is any one of acetonitrile, ethanol and methanol, preferably acetonitrile; the thiol radicals include thiol radical one, thiol radical two and thiol radical three.

[0014] Preferably, in the above-mentioned method for preparing the high-poly aromatic disulfide type organic solvent absorbent (preparation of TDSR), the second organic solvent is any one of ethyl acetate and methyl acetate, preferably ethyl acetate.

[0015] Preferably, in the preparation method of the above-mentioned high-polymer aromatic disulfide type organic solvent absorbent, an eluent is added in the column purification, and the eluent is pure petroleum ether.

[0016] Preferably, in the preparation method of the above-mentioned high-poly aromatic disulfide type organic solvent absorbent, the monomer structure of the high-poly aromatic disulfide type organic solvent absorbent is alkoxylated aromatic disulfide, and the organic solvent absorbent only absorbs organic solvents but does not absorb water.

[0017] Preferably, in the preparation method of the above-mentioned high-poly aromatic disulfide type organic solvent absorbent, TDSR is affected by light during the static process to produce different types of thiol free radicals, and the different types of thiol free radicals are polymerized to obtain a high-poly aromatic disulfide type organic solvent absorbent (HDSC).

[0018] The present invention also provides a high-polymer aromatic disulfide type organic solvent absorbent prepared by the above method.

[0019] The advantages of the present invention are:

[0020] (1) The preparation method of the high-poly aromatic disulfide type organic solvent absorbent of the present invention is simple, low-energy consuming, and mild in conditions, which lays a solid foundation for its future industrial production.

[0021] (2) The monomer structure of the high-polymer aromatic disulfide-type organic solvent absorbent of the present invention is an alkoxylated aromatic disulfide, which makes it have good lipophilicity and hydrophobicity, and can absorb organic solvents in water without absorbing water, effectively solving the problem of weakened organic solvent absorption performance and low removal efficiency caused by water absorption of the absorbent;

[0022] (3) After the high-poly aromatic disulfide organic solvent absorbent (HDSC) of the present invention absorbs the organic solvent, it can be restored to its original state and continue to be recycled after the organic solvent is completely volatilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the NMR image of TDSR, a raw material of high-poly aromatic disulfide organic solvent absorbent;

[0024] Figure 2 This is the mass spectrum of TDSR, a raw material of a high-poly aromatic disulfide type organic solvent absorbent;

[0025] Figure 3 This is a picture of the high-polymer aromatic disulfide organic solvent absorbent HDSC prepared by the present invention;

[0026] Figure 4 is the EPR signal diagram of thiol free radical;

[0027] Figure 5 is the XPS graph of sulfur in HDSC;

[0028] Figure 6 This is the NMR contrast inference image after TDSR was converted to HDSC;

[0029] Figure 7 This is the mass spectrum of thiol free radical captured by TEMPO;

[0030] Figure 8 This is the mass spectrum of thiol radical 2 captured by TEMPO;

[0031] Fig. 9 This is the mass spectrum of thiol radical three after being captured by TEMPO. DETAILED DESCRIPTION

[0032] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples. The experimental methods in the following examples without specifying specific conditions are carried out according to conventional methods and conditions, or selected according to the product specifications.

[0033] In a first aspect, the present invention provides a method for preparing a high-polymer aromatic disulfide type organic solvent absorbent, comprising the following steps:

[0034] Step 1: dissolving the raw material TDSR solid in ultra-dry dichloromethane to obtain a TDSR solution;

[0035] Step 2: Add 20.0-25.0 μL of organic solvent 1 and TDSR solution into a sample bottle, seal it, and let it stand for 10-20 days to generate different types of thiol free radicals. The thiol free radicals undergo polymerization reaction. Open the sample bottle and wait for the ultra-dry dichloromethane and organic solvent 1 to evaporate naturally to obtain a high-polymer aromatic disulfide type organic solvent absorbent HDSC, wherein the monomer structure of the absorbent is alkoxylated aromatic disulfide.

[0036] Specifically, the present invention provides a method for preparing a high-poly aromatic disulfide type organic solvent absorbent, wherein the raw material TDSR is prepared by the following method:

[0037] (1) dissolving 50-55 mg of thiol monomer compound 1 in 60-65 ml of organic solvent 2, stirring and reacting for 6-8 days;

[0038] (2) adding silica gel powder, removing the organic solvent by rotary evaporation, and performing column purification to separate and obtain the trimerized alkoxylated aromatic disulfide TDSR.

[0039] Specifically, the present invention provides a method for preparing a high-polymer aromatic disulfide-type organic solvent absorbent, wherein the TDSR solid in step 1 is 2.5-3.5 MG, and the ultra-dry dichloromethane is 70-78 ΜL.

[0040] Specifically, the present invention provides a method for preparing a high-poly aromatic disulfide type organic solvent absorbent, wherein the organic solvent 1 in step 2 is any one of acetonitrile, ethanol and methanol;

[0041] The thiol free radical includes thiol free radical 1, thiol free radical 2 and thiol free radical 3. The thiol free radical 1, thiol free radical 2 and thiol free radical 3 are shown in the following figure respectively:

[0042]

[0043] Thiol free radical one, thiol free radical two and thiol free radical three Specifically, the present invention provides a method for preparing a high-polymer aromatic disulfide type organic solvent absorbent, wherein the organic solvent two is any one of ethyl acetate and methyl acetate.

[0044] Specifically, the present invention provides a method for preparing a high-polymer aromatic disulfide type organic solvent absorbent, wherein the eluent in the column purification process is pure petroleum ether.

[0045] In a second aspect, the present invention further provides a high-polymerized aromatic disulfide type organic solvent absorbent, specifically a high-polymerized aromatic disulfide type organic solvent absorbent prepared by the preparation method of the high-polymerized aromatic disulfide type organic solvent absorbent.

[0046] Preparation steps of raw material TDSR: dissolve 50-55 mg of mercapto monomer compound 1 in 60-65 ml of organic solvent 2 (such as ethyl acetate or methyl acetate), stir and react for 6-8 days.

[0047] Add silica gel powder and remove the organic solvent by rotary evaporation.

[0048] Pure trimerized alkoxylated aromatic disulfide TDSR was isolated and purified by column purification using pure petroleum ether as eluent.

[0049] Preparation of raw material TDSR: This step is the key to prepare the raw material TDSR required for the high-poly aromatic disulfide type organic solvent absorbent. By reacting and purifying in an organic solvent, we can obtain high-quality trimerized alkoxylated aromatic disulfide TDSR, which provides a basis for subsequent steps.

[0050] The preparation steps of the high-polymer aromatic disulfide type organic solvent absorbent are as follows: 2.5-3.5MG of TDSR solid is dissolved in 70-78ΜL of ultra-dry dichloromethane to prepare a TDSR solution.

[0051] Mix 20.0-25.0 μL of an organic solvent (such as acetonitrile, ethanol or methanol) with the TDSR solution and add it to the sample bottle.

[0052] The sample bottle is sealed and allowed to stand for 10-20 days, during which time different types of thiol radicals (including thiol radical 1, thiol radical 2 and thiol radical 3) are generated, which then undergo polymerization reactions.

[0053] Open the sample bottle and wait for the ultra-dry dichloromethane and the organic solvent to evaporate naturally, and then you can get the high-polymer aromatic disulfide type organic solvent absorbent HDSC.

[0054] Preparation and effect of high-poly aromatic disulfide organic solvent absorbent: In this step, TDSR reacts with an organic solvent under specific conditions to generate a high-poly aromatic disulfide organic solvent absorbent HDSC with specific properties. This method not only has mild conditions and low energy consumption, but also the absorbent prepared can selectively absorb organic solvents without absorbing water, thereby significantly improving the removal efficiency of organic solvents. The monomer structure of this absorbent is alkoxylated aromatic disulfide, which gives it good lipophilic and hydrophobic properties.

[0055] The present invention provides a high-polymer aromatic disulfide type organic solvent absorbent and a preparation method thereof:

[0056] 1. Dissolve 50-55 mg of thiol monomer compound 1 in 60-65 mL of organic solvent 2, stir and react for 6-8 days, and monitor the reaction with a TLC plate; after sufficient reaction, add silica gel powder, remove organic solvent 2 by rotary evaporation, and then add eluent pure petroleum ether for column purification to separate and obtain trimerized alkoxylated aromatic disulfide TDSR. The reaction process can be represented by the following formula:

[0057]

[0058] 2. Weigh 2.5-3.5 mg of the raw material TDSR solid and dissolve it in 70-78 μL of ultra-dry dichloromethane to obtain a TDSR solution with a concentration of 35-45 g / L; then add 20.0-25.0 μL of organic solvent 1 and the TDSR solution into a sample bottle, seal it, and let it stand for 10-20 days to generate different types of thiol free radicals, which will polymerize. Open the sample bottle, and after the ultra-dry dichloromethane and the organic solvent 1 evaporate naturally, an elastic transparent substance is obtained, that is, a high-polymer aromatic disulfide type organic solvent absorbent HDSC is obtained.

[0059] The thiol free radicals include thiol free radical 1, thiol free radical 2 and thiol free radical 3. The thiol free radical 1, thiol free radical 2 and thiol free radical 3 mentioned in the present invention refer to different types of thiol free radicals generated by thiol monomer compounds under specific reaction conditions. The thiol free radicals may have different effects in the polymerization reaction, affecting the properties and performance of the final high-polymerized aromatic disulfide type organic solvent absorbent.

[0060] The above reaction process can be expressed by the following formula:

[0061]

[0062] In some embodiments of the present invention, the first organic solvent is any one of acetonitrile, ethanol and methanol, preferably acetonitrile; the second organic solvent is any one of ethyl acetate and methyl acetate, preferably ethyl acetate.

[0063] In some embodiments of the present invention, the high polymer aromatic disulfide organic solvent absorbent (HDSC) only absorbs organic solvents but does not absorb water; the absorbent monomer structure is alkoxylated aromatic disulfide.

[0064] Highly polymerized aromatic disulfide organic solvent absorbent (HDSC) only absorbs organic solvents and does not absorb water. Its proof data are mainly reflected in the following aspects:

[0065] The monomer structure of HDSC is alkoxylated aromatic disulfide. This specific structure gives it good lipophilicity and hydrophobicity, which is the key to its ability to absorb only organic solvents but not water.

[0066] In the related examples, Examples 5 to 8, it is described that the prepared HDSC is an absorbent that only absorbs organic solvents but not water.

[0067] The specific preparation method and experimental results also provide proof. For example, experiments were conducted in different organic solvents (such as acetonitrile, ethanol, methanol, etc.), and observations were made after standing for 10-20 days, which confirmed that HDSC can effectively absorb these organic solvents. And after the organic solvent evaporates, HDSC can return to its initial state, which further shows that it only has an absorption effect on organic solvents, but not on water. It is proved that the high-poly aromatic disulfide organic solvent absorbent (HDSC) has the characteristics of only absorbing organic solvents and not absorbing water.

[0068] The reason why the high-poly aromatic disulfide organic solvent absorbent can absorb only organic solvents but not water is that its monomer structure is alkoxylated aromatic disulfide. This special structure gives the absorbent good lipophilicity and hydrophobicity, allowing it to selectively absorb organic solvents in water and avoid absorbing water. This feature effectively solves the problem of weakened organic solvent absorption performance and low removal efficiency caused by water absorption in traditional absorbents.

[0069] The innovative points of the present invention mainly include the following points: first, it provides a simple, low-energy and mild preparation method, which lays a foundation for the industrial production of high-polymer aromatic disulfide type organic solvent absorbent; second, the absorbent has good lipophilicity and hydrophobicity, and can selectively absorb organic solvents in water without absorbing water, thereby solving the problem of performance degradation of traditional absorbents due to water absorption; finally, this absorbent can be restored to its original state after absorbing the organic solvent and can be recycled, which not only improves the economy but also enhances the environmental protection.

[0070] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0071] Example 1 Preparation of TDSR:

[0072] 50 mg of the thiol monomer compound 1 was dissolved in 60 mL of ethyl acetate, stirred and reacted for 6 days, and the reaction was monitored by a TLC plate; after sufficient reaction, silica gel powder was added, and the ethyl acetate was removed by rotary evaporation, and then pure petroleum ether was added as an eluent for column purification to separate the trimerized alkoxylated aromatic disulfide TDSR.

[0073] Figure 1 This is the NMR image of the high-poly aromatic disulfide type organic solvent absorbent raw material TDSR prepared in this embodiment, and the results are as follows:

[0074] 1 H NMR (400MHz, CDCl3, δ:) 7.23 (t, J=1.6Hz, 1H), 6.91 (d, J=1.6Hz, 2H), 3.94 (t, J= 8.5, 4.4Hz, 2H), 1.78-1.68 (m, 2H), 1.53-1.40 (m, 2H), 0.97ppm (t, J=7.4Hz, 3H); 13 CNMR (101MHz, CDCl3, δ:) 159.73, 138.67, 119.90, 114.48, 68.13, 31.15, 19.19, 13.83.MS: m / z: calcd: 635.0916; found: 635.0907 [MH + ].

[0075] Figure 2 This is the mass spectrum of the high-polymer aromatic disulfide type organic solvent absorbent raw material TDSR prepared in this example.

[0076] Example 2 Preparation of TDSR:

[0077] 53.5 mg of the thiol monomer compound 1 was dissolved in 63 mL of ethyl acetate, stirred and reacted for 7 days, and the reaction was monitored by a TLC plate; after sufficient reaction, silica gel powder was added, and the ethyl acetate was removed by rotary evaporation, and then pure petroleum ether was added as an eluent for column purification to separate the trimerized alkoxylated aromatic disulfide TDSR.

[0078] Example 3 Preparation of TDSR:

[0079] 53.5 mg of the thiol monomer compound 1 was dissolved in 63 mL of ethyl acetate, stirred and reacted for 8 days, and the reaction was monitored by a TLC plate; after sufficient reaction, silica gel powder was added, and the ethyl acetate was removed by rotary evaporation, and then pure petroleum ether was added as an eluent for column purification to separate the trimerized alkoxylated aromatic disulfide TDSR.

[0080] Example 4 Preparation of TDSR:

[0081] 53.5 mg of the thiol monomer compound 1 was dissolved in 125 mL of ethyl acetate, stirred and reacted for 8 days, and the reaction was monitored by a TLC plate; after sufficient reaction, silica gel powder was added, and the ethyl acetate was removed by rotary evaporation, and then pure petroleum ether was added as an eluent for column purification to separate the trimerized alkoxylated aromatic disulfide TDSR.

[0082] Example 5 Preparation of HDSC:

[0083] 2.5 mg of the raw material TDSR solid prepared in Example 1 was weighed and dissolved in 70 μL of ultra-dry dichloromethane to obtain a colorless and transparent TDSR solution with a concentration of 35 g / L; then 20.0 μL of acetonitrile and TDSR solution were added to a 1.5 ml sample bottle, sealed, and allowed to stand for 10 days to allow the generated thiol radicals to polymerize. The sample bottle was opened, and after the ultra-dry dichloromethane and acetonitrile were naturally evaporated, a high-polymer aromatic disulfide-type organic solvent absorbent HDSC that absorbs organic solvents but does not absorb water was obtained.

[0084] The appearance of the prepared high-poly aromatic disulfide organic solvent absorbent HDSC can be seen in Figure 3 In this preparation process, the EPR signal of thiol radicals can be found in Figure 4 , the XPS diagram of organic solvent absorbent HDSC sulfur can be found at Figure 5 , see the NMR comparison chart after TDSR conversion to HDSC Figure 6 The mass spectra of thiol radical 1, thiol radical 2 and thiol radical 3 after being captured by TEMPO are shown in Figure 7-Figure 8 ,Depend on Figure 7-Figure 8 It can be seen that thiol free radical 1, thiol free radical 2 and thiol free radical 3 are indeed generated during the preparation process of HDSC.

[0085] TEMPO is a chemical substance used to capture thiol free radicals. Its full English spelling is Tetramethylpiperidine-1-oxyl (TEMPO).

[0086] Example 6 Preparation of HDSC:

[0087] 3.0 mg of the raw material TDSR solid prepared in Example 2 was weighed and dissolved in 75 μL of ultra-dry dichloromethane to obtain a colorless and transparent TDSR solution with a concentration of 40 g / L; then 23.0 μL of acetonitrile and TDSR solution were added to a 1.5 ml sample bottle, sealed, and allowed to stand for 15 days to allow the generated thiol radicals to polymerize. The sample bottle was opened, and after the ultra-dry dichloromethane and acetonitrile were naturally evaporated, a high-polymer aromatic disulfide-type organic solvent absorbent HDSC that absorbs organic solvents but does not absorb water was obtained.

[0088] Example 7 Preparation of HDSC:

[0089] 3.0 mg of the raw material TDSR solid prepared in Example 3 was weighed and dissolved in 75 μL of ultra-dry dichloromethane to obtain a colorless and transparent TDSR solution with a concentration of 40 g / L; then 23.0 μL of acetonitrile and TDSR solution were added to a 1.5 ml sample bottle, sealed, and allowed to stand for 18 days to allow the generated thiol radicals to polymerize. The sample bottle was opened, and after the ultra-dry dichloromethane and acetonitrile were naturally evaporated, a high-polymer aromatic disulfide-type organic solvent absorbent HDSC that absorbs organic solvents but does not absorb water was obtained.

[0090] Example 8 Preparation of HDSC:

[0091] 3.5 mg of the raw material TDSR solid prepared in Example 4 was weighed and dissolved in 78 μL of ultra-dry dichloromethane to obtain a colorless and transparent TDSR solution with a concentration of 45 g / L; then 25.0 μL of acetonitrile and TDSR solution were added to a 1.5 ml sample bottle, sealed, and allowed to stand for 20 days to allow the generated thiol radicals to polymerize. The sample bottle was opened and the acetonitrile was allowed to evaporate naturally to obtain a high-polymer aromatic disulfide-type organic solvent absorbent HDSC that absorbs organic solvents but not water.

[0092] It can be seen from the above embodiments that the present invention provides a high-poly aromatic disulfide type organic solvent absorbent and a preparation method thereof. The preparation method is simple, low in energy consumption, and mild in conditions. The prepared high-poly aromatic disulfide type organic solvent absorbent has good lipophilicity and hydrophobicity, and can absorb organic solvents without absorbing water, which effectively solves the problem of small organic solvent absorption caused by water absorption by the absorbent, improves its removal efficiency of organic solvents, and after the organic solvent is separated from the HDSC, the HDSC returns to its initial state and can be recycled.

[0093] TDSR is trimerized alkoxylated aromatic disulfide, and its full English spelling is TRI-POLY ALKOXYLATED SULFIDE OF AROMATIC COMPOUND.

[0094] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for preparing a high-polymer aromatic disulfide type organic solvent absorbent, characterized in that: The following steps are involved: Step 1: dissolving the raw material TDSR solid in ultra-dry dichloromethane to obtain a TDSR solution; Step 2: Add 20.0-25.0 μL of organic solvent 1 and TDSR solution into a sample bottle, seal it, and let it stand for 10-20 days to generate different types of thiol free radicals, which undergo polymerization reactions. Open the sample bottle, and wait for the ultra-dry dichloromethane and organic solvent 1 to evaporate naturally to obtain a high-polymer aromatic disulfide-type organic solvent absorbent HDSC, wherein the monomer structure of the absorbent is alkoxylated aromatic disulfide.

2. The method for preparing the high-polymer aromatic disulfide type organic solvent absorbent according to claim 1, characterized in that: The raw material TDSR is prepared by the following method: (1) dissolving 50-55 mg of the thiol monomer compound 1 in 60-65 mL of an organic solvent 2, stirring and reacting for 6-8 days; (2) adding silica gel powder, removing the organic solvent by rotary evaporation, and performing column purification to separate and obtain the trimerized alkoxylated aromatic disulfide TDSR.

3. The method for preparing the high-polymer aromatic disulfide type organic solvent absorbent according to claim 1, characterized in that: The TDSR solid in step 1 is 2.5-3.5 mg, and the ultra-dry dichloromethane is 70-78 μL.

4. The method for preparing the high-polymer aromatic disulfide type organic solvent absorbent according to claim 1, characterized in that: In the step 2, the organic solvent 1 is any one of acetonitrile, ethanol and methanol; The thiol free radical includes thiol free radical 1, thiol free radical 2 and thiol free radical 3.

5. The method for preparing the high-polymer aromatic disulfide type organic solvent absorbent according to claim 2, characterized in that: The second organic solvent is any one of ethyl acetate and methyl acetate.

6. The method for preparing the high-polymer aromatic disulfide type organic solvent absorbent according to claim 2, characterized in that: The eluent in the column purification process is pure petroleum ether.

7. A high-polymer aromatic disulfide type organic solvent absorbent, characterized in that: The invention comprises a high-polymer aromatic disulfide type organic solvent absorbent prepared by the method according to any one of claims 1 to 6.

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