Hydrogen peroxide adduct and method of application of hydrogen peroxide adduct

Abstract

To provide a hydrogen peroxide adduct that can hold a large amount of hydrogen peroxide relative to a total mass of the hydrogen peroxide adduct.SOLUTION: The hydrogen peroxide adduct of the present invention comprises hydrogen peroxide and a compound. The compound adsorbs the hydrogen peroxide. The compound has at least three substituents. The substituents are carboxyl groups, hydroxyl groups, or sulfonic acid groups.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to hydrogen peroxide adducts and methods of using the hydrogen peroxide adducts. [Background technology]

[0002] Hydrogen peroxide is a chemical that has been used industrially in a wide range of fields, such as bleaching paper, pulp, and textiles, and cleaning semiconductors. In addition, since hydrogen peroxide decomposes into water and oxygen, its use has expanded in recent years as an environmentally friendly substance. Hydrogen peroxide is generally stored and used as an aqueous solution, but it is a relatively unstable compound that will gradually decompose if left unattended.

[0003] Various hydrogen peroxide stabilizers are known to inhibit the decomposition of hydrogen peroxide (see Patent Document 1). Patent Document 1 discloses an alkaline hydrogen peroxide aqueous solution containing a mixture of an aminocarboxylate and an acetophosphonate. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 4-349109 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the alkaline hydrogen peroxide aqueous solution of Patent Document 1 contains a large amount of water, and therefore the content of hydrogen peroxide is small relative to the total mass of the alkaline hydrogen peroxide aqueous solution.

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide a hydrogen peroxide adduct that can retain a large amount of hydrogen peroxide relative to the total mass of the hydrogen peroxide adduct, and a method for using the hydrogen peroxide adduct. [Means for solving the problem]

[0007] The hydrogen peroxide adduct according to the present invention contains hydrogen peroxide and a compound. The hydrogen peroxide is adsorbed to the compound. The compound has at least three or more substituents. The substituents are a carboxy group, a hydroxy group, or a sulfonic acid group.

[0008] In one embodiment, the compound is polyacrylic acid or polyvinyl alcohol.

[0009] In one embodiment, the compound has a mass average molecular weight of 500 or more and 250,000 or less.

[0010] In certain embodiments, the hydrogen peroxide adduct is a solid.

[0011] In one embodiment, the hydrogen peroxide adduct contains 15% by mass or more of the hydrogen peroxide.

[0012] In one embodiment, the hydrogen peroxide adduct contains water in an amount less than the amount of hydrogen peroxide.

[0013] The method for using a hydrogen peroxide adduct according to the present invention includes a preparation step and a desorption step. In the preparation step, the hydrogen peroxide adduct is prepared. In the desorption step, the hydrogen peroxide adduct is heated to desorb the hydrogen peroxide from the compound.

[0014] The method for using a hydrogen peroxide adduct according to the present invention includes a preparation step and a desorption step. In the preparation step, the hydrogen peroxide adduct is prepared. In the desorption step, the hydrogen peroxide adduct is dispersed or dissolved in a solvent, thereby desorbing the hydrogen peroxide from the compound. Effect of the Invention

[0015] According to the present invention, a large amount of hydrogen peroxide can be retained relative to the total mass of the hydrogen peroxide adduct. [Brief description of the drawings]

[0016] [Figure 1] 1 is a graph showing Raman spectroscopy measurements of the hydrogen peroxide adduct of Example 1. [Diagram 2] 1 is a graph showing Raman spectroscopy measurements of the hydrogen peroxide adduct of Example 2. [Diagram 3] 1 is a graph showing Raman spectroscopy measurements of the hydrogen peroxide adduct of Example 3. [Figure 4] 1 is a graph showing the results of Raman spectroscopy measurement of the hydrogen peroxide adduct of Example 4. [Diagram 5] 1 is a graph showing Raman spectroscopy measurements of the hydrogen peroxide adducts according to Examples 5 and 6. [Figure 6] 1 is a graph showing Raman spectroscopy measurements of the hydrogen peroxide adducts according to Examples 7 and 8. [Figure 7] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 1. [Figure 8] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 2. [Figure 9] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 3. [Figure 10] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 4. [Figure 11] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 5. [Figure 12] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 6. [Figure 13] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 7. [Figure 14] 1 is a graph showing the results of TG measurement of the hydrogen peroxide adduct of Example 8. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, embodiments of the hydrogen peroxide adduct and the method of using the hydrogen peroxide adduct according to the present invention will be described with reference to the drawings, however, the present invention is not limited to the following embodiments.

[0018] The hydrogen peroxide adduct contains hydrogen peroxide (H2O2) and a compound. Hydrogen peroxide is adsorbed to the compound. The hydrogen peroxide adduct is preferably a solid. When the hydrogen peroxide adduct is a solid, the water content can be reduced compared to when it is an aqueous solution, and therefore a large amount of hydrogen peroxide can be held relative to the total mass of the hydrogen peroxide adduct.

[0019] The shape of the hydrogen peroxide adduct is not particularly limited, and is preferably a powder, a sphere, a cylinder, or a square prism. When the shape of the hydrogen peroxide adduct is a sphere, a cylinder, or a square prism, the volume of the hydrogen peroxide adduct is not particularly limited, and is preferably 0.004 cm. 3 More than 600cm 3 It is preferable that the volume of the hydrogen peroxide adduct is 0.05 cm or less. 3 More than 3cm 3 If the hydrogen peroxide adduct is less than 100%, it can be easily used and stored.

[0020] The hydrogen peroxide adduct may contain other components in addition to hydrogen peroxide and the compound. The hydrogen peroxide adduct may contain one or more compounds.

[0021] The compound according to the present invention has at least three or more substituents. The substituents are a carboxy group, a hydroxy group, or a sulfonic acid group. Hydrogen peroxide is adsorbed to the carboxy group, the hydroxy group, or the sulfonic acid group. The hydrogen peroxide adduct preferably contains 15% by mass or more of hydrogen peroxide, and more preferably contains 50% by mass or more of hydrogen peroxide.

[0022] The hydrogen peroxide adduct may contain water (H2O) in a content less than the content of hydrogen peroxide. As a result, the hydrogen peroxide adduct can be used for things that are affected by water. In detail, the hydrogen peroxide adduct may contain 10% by mass or less of water (H2O), and preferably contains 5% by mass or less of water.

[0023] The mass average molecular weight of the compound contained in the hydrogen peroxide adduct is preferably from 500 to 250000. If the mass average molecular weight of the compound exceeds 250000, the content of hydrogen peroxide contained in the hydrogen peroxide adduct may be reduced, while if it is less than 500, the hydrogen peroxide adduct may not be solid.

[0024] The compound is preferably polyacrylic acid (hereinafter sometimes referred to as "PAA"), polyvinyl alcohol (hereinafter sometimes referred to as "PVA"), or a cation exchange resin having a sulfonic acid group (hereinafter sometimes referred to as "CER"), and more preferably PAA or PVA. When the compound is PAA or PVA, the compound is easily available.

[0025] The mass average molecular weight of the polyacrylic acid is preferably 500 or more and 250,000 or less. The polyacrylic acid has a plurality of carboxy groups. Hydrogen peroxide is adsorbed to the polyacrylic acid. The hydrogen peroxide adduct containing the polyacrylic acid (hereinafter, sometimes referred to as "PAA-H2O2") preferably contains 15% by mass or more of hydrogen peroxide, and more preferably contains 50% by mass or more of hydrogen peroxide.

[0026] The mass average molecular weight of polyvinyl alcohol is preferably 500 or more and 250,000 or less. Polyvinyl alcohol has a plurality of hydroxyl groups. Hydrogen peroxide is adsorbed to polyvinyl alcohol. The hydrogen peroxide adduct containing polyvinyl alcohol (hereinafter, sometimes referred to as "PVA-H2O2") preferably contains 15% by mass or more of hydrogen peroxide, and more preferably contains 50% by mass or more of hydrogen peroxide.

[0027] The mass average molecular weight of the cation exchange resin having sulfonic acid groups is preferably 500 or more and 250,000 or less. The cation exchange resin has a plurality of sulfonic acid groups. Hydrogen peroxide is adsorbed to the cation exchange resin having sulfonic acid groups. The hydrogen peroxide adduct containing the cation exchange resin having sulfonic acid groups (hereinafter, sometimes referred to as "CER-H2O2") preferably contains 15% by mass or more of hydrogen peroxide, and more preferably contains 50% by mass or more of hydrogen peroxide.

[0028] Here, a method for producing a hydrogen peroxide adduct will be described. The method for producing a hydrogen peroxide adduct preferably includes a compound preparation step, a mixing step, a drying step, and a storage step.

[0029] In the compound preparation step, a compound is prepared. The compound is preferably PAA, PVA, or CER.

[0030] In the mixing step, it is preferable to prepare a mixture by mixing a compound into an aqueous hydrogen peroxide solution and stirring at a predetermined mixing temperature for a predetermined mixing time. The aqueous hydrogen peroxide solution preferably contains hydrogen peroxide in an amount of 1% by mass or more and 40% by mass or less. The pH of the aqueous hydrogen peroxide solution is preferably 1 to 2, more preferably 1.2. The predetermined mixing temperature is not particularly limited, and is preferably -10°C to 10°C, more preferably 0°C. The predetermined mixing time is not particularly limited, and is preferably 30 to 90 minutes, more preferably 60 minutes.

[0031] In the drying step, the mixture is dried at a predetermined drying temperature for a predetermined drying time to produce a hydrogen peroxide adduct. The hydrogen peroxide adduct is preferably PAA-H2O2, PVA-H2O2, or CER-H2O2. The predetermined drying temperature is not particularly limited, but is preferably 0°C or higher and 20°C or lower. The predetermined drying time is not particularly limited, but is preferably 30 minutes or higher and 12 hours or lower.

[0032] In the storage step, the hydrogen peroxide adduct is stored at a predetermined storage temperature. The predetermined storage temperature is not particularly limited, but is preferably 4° C. or lower.

[0033] According to the production method of the present invention, a hydrogen peroxide adduct capable of holding a large amount of hydrogen peroxide relative to the total mass of the hydrogen peroxide adduct can be easily produced and stored.

[0034] Next, a method for using the hydrogen peroxide adduct will be described. The method for using the hydrogen peroxide adduct preferably includes a preparation step, a desorption step, and a compound recovery step.

[0035] In the preparation step, a hydrogen peroxide adduct is prepared. The hydrogen peroxide adduct is preferably PAA-H2O2, PVA-H2O2, or CER-H2O2.

[0036] In the desorption step, hydrogen peroxide is desorbed from the hydrogen peroxide adduct by heating the hydrogen peroxide adduct to a predetermined desorption temperature. The predetermined desorption temperature is not particularly limited, but is preferably 20° C. or higher and 190° C. or lower.

[0037] In the compound recovery step, the compound from which hydrogen peroxide has been released is recovered. The recovered compound may be reused in the compound preparation step of the production method.

[0038] According to the method of use of the present invention, a large amount of hydrogen peroxide can be used. In particular, the hydrogen peroxide adduct can be used for materials that are affected by water. For example, the hydrogen peroxide adduct can be used as a cleaning agent in the manufacturing process of semiconductors.

[0039] Next, a method for using the hydrogen peroxide adduct will be described. The method for using the hydrogen peroxide adduct preferably includes a preparation step, a desorption step, and a compound recovery step.

[0040] In the preparation step, a hydrogen peroxide adduct is prepared. The hydrogen peroxide adduct is preferably PAA-H2O2, PVA-H2O2, or CER-H2O2.

[0041] In the desorption step, hydrogen peroxide is desorbed from the hydrogen peroxide adduct by dispersing or dissolving the hydrogen peroxide adduct in a solvent at a predetermined desorption temperature. Examples of the solvent include water, alcohol, and a mixture of water and alcohol.

[0042] In the compound recovery step, the compound from which hydrogen peroxide has been released is recovered. The recovered compound may be reused in the compound preparation step of the production method.

[0043] The method of use according to the present invention allows for the use of large amounts of hydrogen peroxide.

[0044] The above describes the embodiments of the present invention. However, the present invention is not limited to the above embodiments, and can be implemented in various forms without departing from the spirit of the present invention. Furthermore, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples, and are not particularly limited, and various modifications are possible without substantially departing from the effects of the present invention.

[0045] Next, the present invention will be described in detail based on examples, but the present invention is not limited to the following examples. EXAMPLES

[0046] <Example 1> Preparation of PAA25000-H2O2 In the compound preparation step, PAA with a mass average molecular weight of 25000 was prepared. In the mixing step, 1 g of PAA was mixed with 3 ml of an aqueous hydrogen peroxide solution containing 30 mass % hydrogen peroxide, and stirred at 0°C for 1 hour to prepare a mixture. In the drying step, the mixture was dried at a predetermined drying temperature for a predetermined drying time to prepare the hydrogen peroxide adduct PAA25000-H2O2 according to Example 1.

[0047] Raman spectroscopy was performed on the hydrogen peroxide adduct PAA25000-H2O2 of Example 1. The evaluation results are shown in Figure 1. Figure 1 is a graph showing the Raman spectroscopy of the hydrogen peroxide adduct PAA25000-H2O2 of Example 1. The vertical axis shows light intensity, and the horizontal axis shows wavelength. Note that "PAA-H2O" is a graph showing the Raman spectroscopy of PAA that was mixed with water rather than mixed with an aqueous hydrogen peroxide solution to adsorb H2O.

[0048] 1, a peak indicating H2O2 was present in the graph obtained by Raman spectroscopy measurement of the hydrogen peroxide adduct PAA25000-H2O2 according to Example 1. In other words, it was confirmed that the hydrogen peroxide adduct PAA25000-H2O2 contains H2O2.

[0049] <Example 2> Preparation of PVA-H2O2 A hydrogen peroxide adduct PVA-H2O2 of Example 2 was produced, except that PVA having a mass average molecular weight of 500 was prepared instead of PAA having a mass average molecular weight of 25,000 in Example 1.

[0050] 2 is a graph showing Raman spectroscopy of the hydrogen peroxide adduct PVA-H2O2 of Example 2. Note that "PVA-H2O" is a graph showing Raman spectroscopy of PVA that was mixed with water, but not with an aqueous hydrogen peroxide solution, to adsorb H2O.

[0051] 2, a peak indicating H2O2 was present in the graph obtained by Raman spectroscopy measurement of the hydrogen peroxide adduct PVA-H2O2 according to Example 2. In other words, it was confirmed that the hydrogen peroxide adduct PVA-H2O2 according to Example 2 contains H2O2.

[0052] <Example 3> Preparation of PAA5000-H2O2 A hydrogen peroxide adduct PAA5000-H2O2 according to Example 3 was produced, except that instead of the PAA having a mass average molecular weight of 25,000 in Example 1, a PAA having a mass average molecular weight of 5,000 was prepared.

[0053] 3 is a graph showing Raman spectroscopy of the hydrogen peroxide adduct PAA5000-H2O2 of Example 3. Note that "PAA5000-H2O" is a graph showing Raman spectroscopy of PAA that was mixed with water, rather than mixed with an aqueous hydrogen peroxide solution, to adsorb H2O.

[0054] 3, a peak indicating H2O2 was present in the graph obtained by Raman spectroscopy measurement of the hydrogen peroxide adduct PAA5000-H2O2 according to Example 3. In other words, it was confirmed that the hydrogen peroxide adduct PAA5000-H2O2 according to Example 3 contains H2O2.

[0055] <Example 4> Preparation of PAA250000-H2O2 A hydrogen peroxide adduct PAA250000-H2O2 according to Example 4 was produced, except that instead of the PAA having a mass average molecular weight of 25,000 in Example 1, a PAA having a mass average molecular weight of 250,000 was prepared.

[0056] 4 is a graph showing Raman spectroscopy of the hydrogen peroxide adduct PAA250000-H2O2 of Example 4. Note that "PAA250000-H2O" is a graph showing Raman spectroscopy of PAA that was mixed with water, rather than mixed with an aqueous hydrogen peroxide solution, to adsorb H2O.

[0057] 4, a peak indicating H2O2 was present in the graph obtained by Raman spectroscopy measurement of the hydrogen peroxide adduct PAA250000-H2O2 according to Example 4. In other words, it was confirmed that the hydrogen peroxide adduct PAA250000-H2O2 according to Example 4 contains H2O2.

[0058] <Comparative Example 1> Preparation of AA-H2O2 The hydrogen peroxide adduct AA-H2O2 of Comparative Example 1 was produced by preparing acrylic acid AA instead of PAA having a mass average molecular weight of 25,000 in Example 1. However, even when the mixture was dried at a specified drying temperature for a specified drying time in the drying process, the hydrogen peroxide adduct AA-H2O2 of Comparative Example 1 did not become solid.

[0059] <Comparative Example 2> Preparation of OA-H2O2 The hydrogen peroxide adduct OA-H2O2 of Comparative Example 2 was produced, except that oxalic acid OA was prepared instead of PAA having a mass average molecular weight of 25,000 in Example 1, and oxalic acid OA was oxidized by H2O2.

[0060] <Example 5> Preparation of PAA1.2-H2O2 In the compound preparation step, PAA with a mass average molecular weight of 25,000 was prepared. In the mixing step, 1 g of PAA was mixed with 3 ml of a hydrogen peroxide aqueous solution with a pH of 1.2 containing 1 mass % hydrogen peroxide, and the mixture was stirred at 0° C. for 1 hour to prepare a mixture. In the drying step, the mixture was dried at a predetermined drying temperature for a predetermined drying time to prepare the hydrogen peroxide adduct PAA1.2-H2O2 according to Example 5.

[0061] Fig. 5 is a graph showing Raman spectroscopy of the hydrogen peroxide adduct PAA1.2-H2O2 according to Example 5. As shown in Fig. 5, a peak indicating H2O2 was present in the graph showing Raman spectroscopy of the hydrogen peroxide adduct PAA1.2-H2O2 according to Example 5. In other words, it was confirmed that the hydrogen peroxide adduct PAA1.2-H2O2 according to Example 5 contains H2O2.

[0062] <Example 6> Preparation of PAA2 A hydrogen peroxide adduct PAA2-H2O2 according to Example 6 was prepared, except that instead of mixing PAA with an aqueous hydrogen peroxide solution of pH 1.2 in Example 5, PAA was mixed with an aqueous hydrogen peroxide solution of pH 2.

[0063] Figure 5 is a graph showing the Raman spectroscopic measurement of the hydrogen peroxide adduct PAA2-H2O2 according to Example 6. As shown in Figure 5, in the graph of the Raman spectroscopic measurement of the hydrogen peroxide adduct PAA2-H2O2 according to Example 6, there was a peak indicating H2O2. In other words, it was confirmed that the hydrogen peroxide adduct PAA2-H2O2 according to Example 6 contained H2O2.

[0064] <Example 7> Production of PAA5 The hydrogen peroxide adduct PAA5-H2O2 according to Example 7 was prepared, except that PAA was mixed with an aqueous hydrogen peroxide solution at pH 5 instead of mixing PAA with an aqueous hydrogen peroxide solution at pH 1.2 in Example 5.

[0065] Figure 6 is a graph showing the Raman spectroscopic measurement of the hydrogen peroxide adduct PAA5-H2O2 according to Example 7. As shown in Figure 6, in the graph of the Raman spectroscopic measurement of the hydrogen peroxide adduct PAA5-H2O2 according to Example 7, there was a peak indicating H2O2. In other words, it was confirmed that the hydrogen peroxide adduct PAA5-H2O2 according to Example 7 contained H2O2.

[0066] <Example 8> Production of PAA7 The hydrogen peroxide adduct PAA7-H2O2 according to Example 8 was prepared, except that PAA was mixed with an aqueous hydrogen peroxide solution at pH 7 instead of mixing PAA with an aqueous hydrogen peroxide solution at pH 1.2 in Example 5.

[0067] Figure 6 is a graph showing the Raman spectroscopic measurement of the hydrogen peroxide adduct PAA7-H2O2 according to Example 8. As shown in Figure 6, in the graph of the Raman spectroscopic measurement of the hydrogen peroxide adduct PAA7-H2O2 according to Example 8, there was a peak indicating H2O2. In other words, it was confirmed that the hydrogen peroxide adduct PAA7-H2O2 according to Example 8 contained H2O2.

[0068] <Evaluation of H2O2 Adsorption Amount> Thermogravimetry (hereinafter, may be referred to as "TG") was performed on the hydrogen peroxide adducts of Examples 1 to 8. The evaluation results are shown in Figures 7 to 14. The vertical axis indicates mass, and the horizontal axis indicates temperature.

[0069] Fig. 7 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA25000-H2O2 according to Example 1. Note that "PAA-H2O" is a graph showing the TG measurement of PAA that was mixed with water, not with an aqueous hydrogen peroxide solution, and had H2O adsorbed thereon. As shown in Fig. 7, when the hydrogen peroxide adduct PAA25000-H2O2 according to Example 1 was heated, H2O2 was desorbed from PAA25000. In other words, it was confirmed that a large amount of H2O2 was adsorbed to the hydrogen peroxide adduct PAA25000-H2O2.

[0070] Fig. 8 is a graph showing the TG measurement of the hydrogen peroxide adduct PVA-H2O2 according to Example 2. Incidentally, "PVA-H2O" is a graph showing the TG measurement of PVA that was mixed with water, not with an aqueous hydrogen peroxide solution, and had H2O adsorbed thereon. As shown in Fig. 8, when the hydrogen peroxide adduct PVA-H2O2 according to Example 2 was heated, H2O2 was desorbed from the PVA. In other words, it was confirmed that a large amount of H2O2 was adsorbed to the hydrogen peroxide adduct PVA-H2O2.

[0071] Fig. 9 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA5000-H2O2 according to Example 3. Incidentally, "PAA5000-H2O" is a graph showing the TG measurement of PAA5000 that was mixed with water, not with an aqueous hydrogen peroxide solution, and had H2O adsorbed thereon. As shown in Fig. 9, when the hydrogen peroxide adduct PAA5000-H2O2 according to Example 3 was heated, H2O2 was desorbed from PAA5000. In other words, it was confirmed that a large amount of H2O2 was adsorbed to the hydrogen peroxide adduct PAA5000-H2O2.

[0072] Fig. 10 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA250000-H2O2 according to Example 4. Note that "PAA250000-H2O" is a graph showing the TG measurement of PAA250000 that was mixed with water, not with an aqueous hydrogen peroxide solution, and had H2O adsorbed thereon. As shown in Fig. 10, when the hydrogen peroxide adduct PAA250000-H2O2 according to Example 4 was heated, H2O2 was desorbed from PAA250000. In other words, it was confirmed that a large amount of H2O2 was adsorbed on the hydrogen peroxide adduct PAA250000-H2O2.

[0073] Fig. 11 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA1.2-H2O2 according to Example 5. As shown in Fig. 11, when the hydrogen peroxide adduct PAA1.2-H2O2 according to Example 5 was heated, H2O2 was desorbed from PAA1.2. In other words, it was confirmed that a large amount of H2O2 was adsorbed on the hydrogen peroxide adduct PAA1.2-H2O2.

[0074] Fig. 12 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA2-H2O2 according to Example 6. As shown in Fig. 12, when the hydrogen peroxide adduct PAA2-H2O2 according to Example 6 was heated, H2O2 was desorbed from PAA2. In other words, it was confirmed that a large amount of H2O2 was adsorbed on the hydrogen peroxide adduct PAA2-H2O2.

[0075] Fig. 13 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA5-H2O2 according to Example 7. As shown in Fig. 13, when the hydrogen peroxide adduct PAA5-H2O2 according to Example 7 was heated, H2O2 was desorbed from PAA5. In other words, it was confirmed that a large amount of H2O2 was adsorbed on the hydrogen peroxide adduct PAA5-H2O2.

[0076] Fig. 14 is a graph showing the TG measurement of the hydrogen peroxide adduct PAA7-H2O2 according to Example 8. As shown in Fig. 14, when the hydrogen peroxide adduct PAA7-H2O2 according to Example 8 was heated, H2O2 was desorbed from PAA7. In other words, it was confirmed that a large amount of H2O2 was adsorbed on the hydrogen peroxide adduct PAA7-H2O2. [Industrial Applicability]

[0077] According to the present invention, it is possible to provide a hydrogen peroxide adduct capable of retaining a large amount of hydrogen peroxide, and a method for using the hydrogen peroxide adduct.

Claims

1. Hydrogen peroxide, The compound having hydrogen peroxide adsorbed thereon; Contains The compound has at least three or more substituents, A hydrogen peroxide adduct, wherein the substituent is a carboxy group, a hydroxy group, or a sulfonic acid group.

2. 2. The hydrogen peroxide adduct of claim 1, wherein the compound is polyacrylic acid or polyvinyl alcohol.

3. The hydrogen peroxide adduct according to claim 1, wherein the mass average molecular weight of the compound is 500 or more and 250,000 or less.

4. 2. The hydrogen peroxide adduct of claim 1 which is a solid.

5. 2. The hydrogen peroxide adduct according to claim 1, containing 15% by weight or more of said hydrogen peroxide.

6. 2. The hydrogen peroxide adduct according to claim 1, which contains water in an amount less than the amount of hydrogen peroxide.

7. A preparation step of preparing the hydrogen peroxide adduct according to any one of claims 1 to 6; a desorption step of desorbing the hydrogen peroxide from the compound by heating the hydrogen peroxide adduct; A method of using the hydrogen peroxide adduct comprising:

8. A preparation step of preparing the hydrogen peroxide adduct according to any one of claims 1 to 6; a desorption step of desorbing the hydrogen peroxide from the compound by dispersing or dissolving the hydrogen peroxide adduct in a solvent; A method of using the hydrogen peroxide adduct comprising:

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