CN115028837B - Polymerization method of aromatic sulfone polymer, aromatic sulfone polymer obtained by polymerization method and application of aromatic sulfone polymer - Google Patents
Polymerization method of aromatic sulfone polymer, aromatic sulfone polymer obtained by polymerization method and application of aromatic sulfone polymer Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
- C08G75/23—Polyethersulfones
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses a polymerization method of aromatic sulfone polymer, wherein the specific weight average weight of 500-3000g/mol oligomer is added at the initial stage of polymerization reaction, then the specific weight average molecular weight of 100000-120000g/mol aromatic sulfone polymer is added at the later stage of polymerization reaction, and the peak area S of polymer chain with the molecular weight of aromatic sulfone polymer greater than 150000g/mol obtained by polymerization can be realized by adjusting the process conditions M150000 Peak area S of total polymer chain M The proportion of (2) is between 7 and 10%, so that the aromatic sulfone polymer has better chemical resistance.
Description
Technical Field
The invention relates to the technical field of high molecular materials, in particular to a polymerization method of an aromatic sulfone polymer and the aromatic sulfone polymer obtained by the polymerization method.
Background
Aromatic sulfone polymers are high temperature transparent engineering thermoplastics with outstanding thermal properties, excellent chemical resistance, excellent high temperature creep resistance, excellent dimensional stability, extremely low smoke and toxic gas emissions, and excellent resistance to hot water, superheated steam and good electrical properties. Along with the development of aromatic sulfone polymer materials becoming perfect, the application range of the aromatic sulfone polymer materials is wider and wider, the aromatic sulfone polymer materials have applicability in the fields of aerospace, medical and health, food, household appliances, electronic and electric appliances and energy chemical industry application, in particular to the fields of food contact and medical and health, the requirements on the material performance are higher and higher, and the requirements on organic solvent resistant chemicals such as ketones and the like of the materials are higher and tighter in the use process of partial aromatic sulfone products.
For most industrial process plastics, a more chemical resistant material is generally used to enhance the chemical resistance of the bulk resin, CN104559115 reports the introduction of ethylene-methacrylate copolymers to improve the chemical resistance of PC/PET alloys, CN106832848 reports the preparation of PC/ABS alloys containing LCP and compatibilizing agents to achieve an improvement in corrosion resistance to cosmetics and the like. There are few reports on the study of the chemical resistance of aromatic sulfone polymers.
Disclosure of Invention
The purpose of the present invention is to provide a method for polymerizing an aromatic sulfone polymer, which gives an aromatic sulfone polymer having the advantage of good chemical resistance.
The invention is realized by the following technical scheme:
a method for polymerizing an aromatic sulfone polymer comprising the steps of,
(1) Salt forming reaction: quantitatively adding a solvent, a reaction monomer, a salifying agent and an entrainer into a reaction kettle protected by nitrogen, wherein the molar ratio of the salifying agent to the total molar amount of the reaction monomer is 1.01-1.25; adopting a solution polycondensation method, keeping the temperature between 180 and 190 ℃ for 1.5 to 2 hours, keeping the temperature between 190 and 220 ℃ for 2.5 to 3 hours, continuously discharging the reaction water from the entrainer through azeotropy in the reaction process until no water is discharged, ending the salification reaction, and steaming out the entrainer;
(2) Polymerization reaction: after distilling off the entrainer, adding 0.1-1wt% of aromatic sulfone oligomer with weight average molecular weight of 500-3000g/mol based on the total weight of the reaction monomers, heating the reaction system to 235-240 ℃ within 0.5h, keeping for 1.0-1.5 h, adding 1-4wt% of aromatic sulfone polymer with weight average molecular weight of 100000-120000g/mol based on the total weight of the reaction monomers, and keeping the temperature for 1.5-2.0 h to obtain a polymer material;
(3) And (3) polymerization post-treatment: precipitating the polymer material in water, pulverizing to obtain powder material, boiling with deionized water for 0.5-3 hr, filtering, and repeating the deionized water boiling/filtering steps for several times to obtain aromatic sulfone polymer.
The monomer of the aromatic sulfone oligomer and the aromatic sulfone polymer are the same as those of the aromatic sulfone polymer.
The aromatic sulfone polymer is at least one of polyphenylsulfone, polyethersulfone, polysulfone, polyethersulfone ketone and polyphenylsulfide sulfone.
The reaction monomer of the polyphenylsulfone is at least one of 4,4' -dichloro diphenyl sulfone and 4,4' -difluoro diphenyl sulfone and 4,4' -biphenol; the reaction monomer of the polyether sulfone is at least one of 4,4' -dichloro diphenyl sulfone and 4,4' -difluoro diphenyl sulfone and 4,4' -dihydroxy diphenyl sulfone; the reaction monomer of polysulfone is at least one of 4,4' -dichloro diphenyl sulfone, 4' -difluoro diphenyl sulfone and 2,2' -bis (4-hydroxyphenyl) propane; the reaction monomer of the polyethersulfone ketone is at least one of 4,4 '-dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone and hydroquinone; the reaction monomer of the polyphenylene sulfide sulfone is sodium sulfide and at least one of 4,4 '-dichloro diphenyl sulfone and 4,4' -difluoro diphenyl sulfone.
The salifying agent is alkali metal carbonate; the alkali metal carbonate is at least one selected from sodium carbonate, potassium carbonate, rubidium carbonate and cesium carbonate.
The entrainer is at least one selected from toluene and xylene.
The solvent is at least one selected from sulfolane, N-methylpyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, diphenylsulfone and dimethyl sulfoxide.
The addition amount of the solvent is 2.5-3.0 times of the total weight of the reaction monomers, and the addition amount of the entrainer is 0.20-0.30 times of the total weight of the reaction monomers.
Preferably, the weight average molecular weight of the aromatic sulfone oligomer is 900-1600g/mol, and the weight average molecular weight of the polyarylsulfone polymer is 108000-113000g/mol.
Aromatic sulfone polymer obtained by the polymerization method of aromatic sulfone polymer of the present invention, the aromatic sulfone polymer has a weight average molecular weight of more than 150000g/mol of peak area S of polymer chain M150000 Peak area of total polymer chainS M The proportion of (2) is between 7 and 10%, preferably between 8 and 9%.
The aromatic sulfone polymer obtained by the polymerization method of the aromatic sulfone polymer is applied to the preparation of the bottle body of a milk bottle.
The invention has the following beneficial effects:
according to the invention, a small amount of aromatic sulfone oligomer is added at the initial stage of the polymerization reaction to guide the growth of a polymer chain segment (the chain growth is stopped due to the fact that the monomer is prevented from side reaction caused by slow reaction at high temperature for a long time), a certain amount of aromatic sulfone high polymer with weight average molecular weight of 100000-120000g/mol is added at the later stage of the polymerization reaction, the chain growth reaction of the high molecular weight polymer chain segment is guided again, the content of the high polymer in the resin is improved, the controllability of the later addition is strong, and the molecular weight is prevented from being excessively large. So that the aromatic sulfone polymer of the invention has a peak area S of the polymer chain of more than 150000g/mol M150000 Peak area S of total polymer chain M The proportion of (a) is between 7 and 10% (preferably between 8 and 9%). Because the high polymer is completely dissolved and mixed in the polymerization solution in the polymerization process, long chains of the high polymer can be uniformly distributed in the polymer, entanglement of polymer molecular chains can be enhanced, and damage of an organic reagent to a molecular chain structure is reduced, so that the chemical resistance of the high polymer is obviously improved while the polymer type is not changed, and meanwhile, the addition amount of the high polymer is regulated.
Drawings
Fig. 1: a schematic representation of the ratio of the peak area of the polymer chains having a weight average molecular weight of more than 150000g/mol to the peak area of the total polymer chains.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The sources of the raw materials used in the examples and comparative examples are as follows:
4,4' -dichlorodiphenyl sulfone, 4' -biphenol, 4' -dihydroxydiphenyl sulfone, commercially available.
Xylene: azeotroping agent, isomerism grade, commercially available.
Sulfolane: solvent, purity 99.8%, commercially available.
Sodium carbonate: salt forming agents, commercially available.
Aromatic sulfone high polymer synthesis:
synthesis of PPSU aromatic sulfone Polymer: 36kg of sulfolane, 11.49kg of 4,4 '-dichloro diphenyl sulfone and 7.34kg of 4,4' -diphenyl diphenol are quantitatively added into a 100L reaction kettle protected by high-purity nitrogen, the mixture is stirred and heated, 33kg of sodium carbonate and 3kg of dimethylbenzene are added, a solution polycondensation method is adopted, 5h is kept at 210 ℃, the dimethylbenzene continuously discharges reaction water through azeotropy in the reaction process until no water is discharged, the salification reaction is finished, and the entrainer is distilled. After that, the reaction system was warmed to 235℃and kept for 2 hours. Stopping stirring and heating, precipitating the polymer material into strips in water, crushing the strips by a crusher to obtain powdery material, boiling the powdery material for 1h by using deionized water, centrifugally filtering the powdery material, and repeating the steps for 8-10 times until the filtrate is not turbid by silver nitrate detection, namely byproduct salt is washed out. And removing water from the purified polymer under vacuum drying to obtain the PPSU polymer.
Synthesis of PES aromatic sulfone polymers: 36kg of sulfolane, 11.49kg of 4,4 '-dichloro diphenyl sulfone and 9.87kg of 4,4' -dihydroxy diphenyl sulfone are quantitatively added into a 100L reaction kettle protected by high-purity nitrogen, the mixture is stirred and heated, 33kg of sodium carbonate and 3kg of dimethylbenzene are added, a solution polycondensation method is adopted, 5h is kept at 210 ℃, the dimethylbenzene continuously discharges reaction water through azeotropy in the reaction process until no water is discharged, and after the salt formation reaction is finished, the entrainer is distilled. After that, the reaction system was warmed to 235℃and kept for 2 hours. Stopping stirring and heating, precipitating the polymer material into strips in water, crushing the strips by a crusher to obtain powdery material, boiling the powdery material for 1h by using deionized water, centrifugally filtering the powdery material, and repeating the steps for 8-10 times until the filtrate is not turbid by silver nitrate detection, namely byproduct salt is washed out. And removing water from the purified polymer under vacuum drying to obtain the PES polymer.
Synthesis of aromatic sulfone oligomer:
synthesis of PPSU oligomer: 36kg of sulfolane, 11.49kg of 4,4 '-dichloro diphenyl sulfone and 5.45kg of 4,4' -diphenyl diphenol are quantitatively added into a 100L reaction kettle protected by high-purity nitrogen, the mixture is stirred and heated, 33kg of sodium carbonate and 3kg of dimethylbenzene are added, a solution polycondensation method is adopted, 5h is kept at 210 ℃, the dimethylbenzene continuously discharges reaction water through azeotropy in the reaction process until no water is discharged, the salification reaction is finished, and the entrainer is distilled. After that, the reaction system was warmed to 235℃and kept for 2 hours. Stopping stirring and heating, precipitating the polymer material into strips in water, crushing the strips by a crusher to obtain powdery material, boiling the powdery material for 1h by using deionized water, centrifugally filtering the powdery material, and repeating the steps for 8-10 times until the filtrate is not turbid by silver nitrate detection, namely byproduct salt is washed out. And (3) removing water from the purified polymer under vacuum drying to obtain the PPSU (or PES) oligomer.
Synthesis of PES oligomer: 36kg of sulfolane, 11.49kg of 4,4 '-dichloro diphenyl sulfone and 7.40kg of 4,4' -dihydroxy diphenyl sulfone are quantitatively added into a 100L reaction kettle protected by high-purity nitrogen, the mixture is stirred and heated, 33kg of sodium carbonate and 3kg of dimethylbenzene are added, a solution polycondensation method is adopted, 5h is kept at 210 ℃, the dimethylbenzene continuously discharges reaction water through azeotropy in the reaction process until no water is discharged, and after the salt formation reaction is finished, the entrainer is distilled. After that, the reaction system was warmed to 235℃and kept for 2 hours. Stopping stirring and heating, precipitating the polymer material into strips in water, crushing the strips by a crusher to obtain powdery material, boiling the powdery material for 1h by using deionized water, centrifugally filtering the powdery material, and repeating the steps for 8-10 times until the filtrate is not turbid by silver nitrate detection, namely byproduct salt is washed out. And removing water from the purified polymer under vacuum drying to obtain the PES oligomer.
The testing method comprises the following steps:
(1) Chemical resistance performance evaluation: the polymer is subjected to injection molding in an injection molding machine at 380 ℃ to obtain a standard shrinkage rate plate with the length and width of 60+/-2 mm and the thickness of 1+/-0.2 mm, the color plate is soaked in toluene, the temperature of 25+/-5 ℃ and the humidity of 50+/-10%, the surface appearance change and the notch impact strength retention rate of the color plate are observed after soaking for 7 days (standard notch impact bars are molded by the injection molding machine, the length of 80+/-2 mm, the width of 4+/-0.2 mm and the height of 10+/-0.2 mm are high, the injection molding temperature is 350-360 ℃, the cantilever beam notch impact strength M1 is tested according to the international standard ISO 180:2000 after the natural cooling is carried out at normal temperature for 24 hours, the notch is A-type, the pendulum energy is 2J.170 ℃ for aging test, the mechanical bars are baked for 10 hours in an oven at 170 ℃ under the air atmosphere, the notch impact strength M2 is tested after the natural cooling at normal temperature for 24 hours, the comparison test result is obtained, the notch impact strength retention rate=M2/M1% and the corrosion degree in toluene is unchanged, slightly whitened, slightly corroded and slightly and softened respectively from high.
(2) GPC (gel permeation chromatography) test: using polystyrene or polymethyl methacrylate as a standard substance, tetrahydrofuran or N, N-dimethylformamide or chloroform as a mobile phase, and measuring the relative molecular weight of the polymer by using a gel permeation chromatograph, wherein the concentration of the polymer is 0.1-10 mg/mL. The data correspondence of dwt/d (lgMw) and lgMw in GPC (gel permeation chromatography) test data results is plotted using Origin software, with lgMw on the abscissa and dwt/d (lgMw) on the ordinate, and 0 on the ordinate starting point. According to the data integration function in Origin software, the area SM formed by the weight average molecular weight distribution curve and the abscissa is 1, and the integrated area corresponding to the abscissa lgMw (i.e. lg150000) calculated between the weight average molecular weight of 150000g/mol is S M150000 S is S M1500000 And S is equal to M The ratio of the two is expressed as the ratio of the peak area of the polymer chain having a weight average molecular weight of more than 150000g/mol to the peak area of the total polymer chain.
Examples 1-7 and comparative examples 1-9 PPSU preparation method: salt forming reaction: the solvent (sulfolane 11.82 kg), the reaction monomer (4, 4 '-dichloro diphenyl sulfone 2.87kg, 4' -diphenyl diphenol 1.86 kg), the salifying agent (sodium carbonate 5.0 kg) and the entrainer (toluene 1.18 kg) are quantitatively added into a reaction kettle protected by nitrogen, and the molar ratio is calculated; adopting a solution polycondensation method, keeping the temperature between 180 and 190 ℃ for 1.5 to 2 hours, keeping the temperature between 190 and 220 ℃ for 2.5 to 3 hours, continuously discharging the reaction water from the entrainer through azeotropy in the reaction process until no water is discharged, ending the salification reaction, and steaming out the entrainer; polymerization reaction: after the entrainer is distilled off, adding an aromatic sulfone oligomer PPSU (weight average molecular weight and additive amount are shown in the table), heating a reaction system to 235-240 ℃ within 0.5h, keeping for 1.0-1.5 h, adding an aromatic sulfone polymer PPSU (weight average molecular weight and additive amount are shown in the table), and keeping for 1.5-2.0 h to obtain a polymer material; and (3) polymerization post-treatment: stopping stirring and heating, precipitating the polymer material into strips in water, crushing by a crusher to obtain powdery material, boiling with deionized water for 0.5-3h, filtering, repeating the deionized water boiling/filtering steps for several times, and drying to obtain the aromatic sulfone polymer.
Example 8 preparation of PES: salt forming reaction: the solvent (sulfolane 11.82 kg), the reaction monomer (4, 4 '-dichloro diphenyl sulfone 2.87kg, 4' -dihydroxy diphenyl sulfone 2.50 kg), the salifying agent (sodium carbonate 5.6 kg) and the entrainer (toluene 1.18 kg) are quantitatively added into a reaction kettle protected by nitrogen, and the molar ratio is calculated; adopting a solution polycondensation method, keeping the temperature between 180 and 190 ℃ for 1.5 to 2 hours, keeping the temperature between 190 and 220 ℃ for 2.5 to 3 hours, continuously discharging the reaction water from the entrainer through azeotropy in the reaction process until no water is discharged, ending the salification reaction, and steaming out the entrainer; polymerization reaction: after the entrainer is distilled off, adding aromatic sulfone oligomer PES (weight average molecular weight, additive amount are shown in the table), heating a reaction system to 235-240 ℃ within 0.5h, keeping for 1.0-1.5 h, adding aromatic sulfone high polymer PES (weight average molecular weight, additive amount are shown in the table), and keeping for 1.5-2.0 h to obtain a polymer material; and (3) polymerization post-treatment: stopping stirring and heating, precipitating the polymer material into strips in water, crushing by a crusher to obtain powdery material, boiling with deionized water for 0.5-3h, filtering, repeating the deionized water boiling/filtering steps for several times, and drying to obtain the aromatic sulfone polymer.
Table 1: examples and comparative examples data tables
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | |
| Aromatic sulfone oligomer weight average molecular weight, g/mol | 500 | 800 | 2300 | 3000 | 500 |
| Aromatic sulfone oligomer addition in wt% based on the reaction monomer | 0.7 | 0.1 | 0.5 | 1.0 | 0.3 |
| Aromatic sulfone high polymer weight average molecular weight, g/mol | 102000 | 102000 | 120000 | 120000 | 102000 |
| Aromatic sulfone high polymer addition amount wt% based on reaction monomer | 1 | 2.5 | 3.2 | 2.0 | 4.0 |
| S M150000 Duty ratio of | 7.8 | 7.1 | 7.6 | 9.1 | 10.0 |
| Chemical resistance | No change | No change | No change | No change | No change |
| Notched impact retention% | 89.7 | 87.5 | 88.9 | 90.0 | 87.9 |
Continuing with table 1:
| example 6 | Example 7 | Example 8 | |
| Aromatic sulfone oligomer weight average molecular weight, g/mol | 900 | 1300 | 1130 |
| Aromatic sulfone oligomer addition in wt% based on the reaction monomer | 0.1 | 0.1 | 0.4 |
| Aromatic sulfone high polymer weight average molecular weight, g/mol | 113000 | 108000 | 110000 |
| Aromatic sulfone high polymer addition amount wt% based on reaction monomer | 2.0 | 2.0 | 2.5 |
| S M150000 Duty ratio of | 8.1 | 9.0 | 8.5 |
| Chemical resistance | No change | No change | No change |
| Notched impact strength retentionRate% | 93.1 | 92.8 | 93.0 |
Continuing with table 1:
| comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | |
| Aromatic sulfone oligomer weight average molecular weight, g/mol | - | 500 | 500 | 500 | 500 |
| Aromatic sulfone oligomer addition in wt% based on the reaction monomer | - | 0.5 | 0.5 | 0.5 | 1.5 |
| Aromatic sulfone high polymer weight average molecular weight, g/mol | 102000 | 102000 | 102000 | - | 102000 |
| Aromatic sulfone high polymer addition amount wt% based on reaction monomer | 3.2 | 7.0 | 0.5 | - | 3.2 |
| S M150000 Duty ratio of | 5.4 | 10.7 | 6.2 | 4.8 | 5.7 |
| Chemical resistance | Whitening off | Whitening off | Whitening off | Whitening off | Whitening off |
| Notched impact retention% | 79.2 | 71.5 | 76.7 | 74.8 | 83.0 |
Continuing with table 1:
| comparative example 6 | Comparative example 7 | Comparative example 8 | Comparative example 9 | |
| Aromatic sulfone oligomer weight average molecular weight, g/mol | 400 | 3500 | 500 | 500 |
| Aromatic sulfone oligomer addition in wt% based on the reaction monomer | 0.5 | 0.5 | 0.5 | 0.5 |
| Aromatic sulfone high polymer weight average molecular weight, g/mol | 102000 | 102000 | 90000 | 130000 |
| Aromatic sulfone high polymer addition amount wt% based on reaction monomer | 3.2 | 3.2 | 3.2 | 3.2 |
| S M150000 Duty ratio of | 6.7 | 10.3 | 6.9 | 11.3 |
| Chemical resistance | Whitening off | Slightly whiten | Slightly whiten | Whitening off |
| Notched impact retention% | 78.4 | 74.8 | 77.9 | 75.6 |
As is clear from examples and comparative examples 1 to 9, S in the aromatic sulfone polymer can be stably controlled by the method of the present invention M150000 The ratio is 7-10%, and the product has better chemical resistance.
Claims (8)
1. A method for polymerizing an aromatic sulfone polymer, characterized by comprising the steps of,
(1) Salt forming reaction: quantitatively adding a solvent, a reaction monomer, a salifying agent and an entrainer into a reaction kettle protected by nitrogen, wherein the molar ratio of the salifying agent to the total molar amount of the reaction monomer is 1.01-1.25; adopting a solution polycondensation method, keeping the temperature between 180 and 190 ℃ for 1.5 to 2 hours, keeping the temperature between 190 and 220 ℃ for 2.5 to 3 hours, continuously discharging the reaction water from the entrainer through azeotropy in the reaction process until no water is discharged, ending the salification reaction, and steaming out the entrainer;
(2) Polymerization reaction: after distilling off the entrainer, adding 0.1-1wt% of aromatic sulfone oligomer with weight average molecular weight of 500-3000g/mol based on the total weight of the reaction monomers, heating the reaction system to 235-240 ℃ within 0.5h, keeping for 1.0-1.5 h, adding 1-4wt% of aromatic sulfone polymer with weight average molecular weight of 100000-120000g/mol based on the total weight of the reaction monomers, and keeping the temperature for 1.5-2.0 h to obtain a polymer material;
(3) And (3) polymerization post-treatment: precipitating the polymer material in water, crushing to obtain a powdery material, boiling the powdery material with deionized water for 0.5-3h, filtering, and repeating the deionized water boiling/filtering steps for a plurality of times to obtain an aromatic sulfone polymer;
the aromatic sulfone polymer is at least one of polyphenylsulfone, polyethersulfone, polysulfone, polyethersulfone ketone and polyphenylsulfide sulfone; the reaction monomer of the polyphenylsulfone is at least one of 4,4' -dichloro diphenyl sulfone and 4,4' -difluoro diphenyl sulfone and 4,4' -biphenol; the reaction monomer of the polyether sulfone is at least one of 4,4' -dichloro diphenyl sulfone and 4,4' -difluoro diphenyl sulfone and 4,4' -dihydroxy diphenyl sulfone; the reaction monomer of polysulfone is at least one of 4,4' -dichloro diphenyl sulfone, 4' -difluoro diphenyl sulfone and 2,2' -bis (4-hydroxyphenyl) propane; the reaction monomer of the polyethersulfone ketone is at least one of 4,4 '-dichlorodiphenyl sulfone and 4,4' -difluorodiphenyl sulfone and hydroquinone; the reaction monomer of the polyphenylene sulfide sulfone is sodium sulfide and at least one of 4,4 '-dichloro diphenyl sulfone and 4,4' -difluoro diphenyl sulfone.
2. The method for polymerizing an aromatic sulfone polymer according to claim 1, wherein the salt former is an alkali metal carbonate; the alkali metal carbonate is at least one selected from sodium carbonate, potassium carbonate, rubidium carbonate and cesium carbonate.
3. The method for polymerizing an aromatic sulfone polymer according to claim 1, wherein the entrainer is at least one selected from toluene and xylene.
4. The method for polymerizing an aromatic sulfone polymer according to claim 1, wherein the solvent is at least one selected from sulfolane, N-methylpyrrolidone, N, N-dimethylformamide, N, N-dimethylacetamide, diphenylsulfone, and dimethylsulfoxide.
5. The method for polymerizing an aromatic sulfone polymer according to claim 1, wherein the solvent is added in an amount of 2.5 to 3.0 times the total weight of the reaction monomers, and the entrainer is added in an amount of 0.20 to 0.30 times the total weight of the reaction monomers.
6. The method for polymerizing an aromatic sulfone polymer according to claim 1, wherein the weight average molecular weight of the aromatic sulfone oligomer is 900-1600g/mol, and the weight average molecular weight of the polyarylsulfone polymer is 108000-113000g/mol.
7. An aromatic sulfone polymer obtained by the polymerization process of an aromatic sulfone polymer as set forth in any one of claims 1-6, characterized in that the aromatic sulfone polymer has a molecular weight of more than 150000g/mol of the peak area S of polymer chains M150000 Peak area S of total polymer chain M The proportion of (2) is between 7 and 10%, preferably between 8 and 9%.
8. Use of an aromatic sulfone polymer obtained by the polymerization process of an aromatic sulfone polymer as defined in any one of claims 1-6, for the preparation of a bottle body of a baby bottle.
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| CN110483774A (en) * | 2019-08-06 | 2019-11-22 | 金发科技股份有限公司 | A kind of preparation method of aromatic sulfone polymer and aromatic sulfone polymer |
| CN110527091A (en) * | 2019-08-06 | 2019-12-03 | 金发科技股份有限公司 | A kind of preparation method of aromatic sulfone polymer and aromatic sulfone polymer |
| CN111675904A (en) * | 2020-06-01 | 2020-09-18 | 金发科技股份有限公司 | Aromatic sulfone composition, feeding bottle and preparation method and application thereof |
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2022
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107606A (en) * | 2001-09-27 | 2004-04-08 | Sumitomo Chem Co Ltd | Method for producing high molecular weight aromatic polyether |
| WO2019219870A1 (en) * | 2018-05-17 | 2019-11-21 | Solvay Specialty Polymers Usa, Llc | Process for preparing a poly(biphenyl ether sulfone) (ppsu) polymer |
| CN110483774A (en) * | 2019-08-06 | 2019-11-22 | 金发科技股份有限公司 | A kind of preparation method of aromatic sulfone polymer and aromatic sulfone polymer |
| CN110527091A (en) * | 2019-08-06 | 2019-12-03 | 金发科技股份有限公司 | A kind of preparation method of aromatic sulfone polymer and aromatic sulfone polymer |
| CN111675904A (en) * | 2020-06-01 | 2020-09-18 | 金发科技股份有限公司 | Aromatic sulfone composition, feeding bottle and preparation method and application thereof |
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