CN104327277A - Segmented copolymer - Google Patents
Segmented copolymer Download PDFInfo
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- CN104327277A CN104327277A CN201410696930.5A CN201410696930A CN104327277A CN 104327277 A CN104327277 A CN 104327277A CN 201410696930 A CN201410696930 A CN 201410696930A CN 104327277 A CN104327277 A CN 104327277A
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- pyrrolidone
- sulfonated
- wormwood
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- salt
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Abstract
The invention discloses a segmented copolymer. The preparation method comprises the following step: by taking 4,4'-dichloro diphenylsulfone, 3,3'-bisulfonyl-4,4'-dichloro diphenylsulfone and 4,4'-biphenol as monomers, by taking decafluorobiphenyl as a coupling agent and by taking 1-methyl-2-pyrrolidinone as a solvent, carrying out a polymerization reaction under the action of potassium carbonate, thereby obtaining polyether sulfone with a sulfonated-unsulfonated block structure.
Description
Technical field
The present invention relates to a kind of synthesis of segmented copolymer of polyether sulphone.
Background technology
Polysulfones-like polymer separatory membrane is widely used in water treatment field, but due to its hydrophobicity, in mould material use procedure, often easily adsorb organic molecules makes fouling membrane, and then flux reduces gradually, finally loses separation performance.The sulfonation of polymkeric substance improves its hydrophilic important channel, but the sulfonation of polysulfones often causes the degraded of main polymer chain, and sulfonation degree is not high, as Jin Jianbo etc. finds (polymer material science and engineering 26 volume, 126 pages) with oleum, sulfonation is carried out to polyethersulfone, as n (SO3)/n (PES)=2.46, the sulfonated polyether sulfone that sulfonation degree is 37.76% can be obtained, about weight-average molecular weight drop by half.Improve its hydrophilic another approach (Angew.Chem.2008 with the polysulfones that sulfonated monomers directly synthesizes containing hydrophilic unit, 120,6108-6113), but sulfonated monomers ratio higher time, polymers swell is serious, mechanical property obviously declines, thus the development of novel sulfonated polysulfones material be polysulfones separation membrane material field in the urgent need to.
Summary of the invention
For realizing technical scheme provided by the present invention be:
With 4,4 '-dichloro diphenylsulfone, 3,3 '-disulfonic acid base-4,4 '-dichloro diphenylsulfone, 4,4 '-'-biphenyl diphenol is monomer decafluorobiphenyl is coupling agent, nitrogen methyl-2-pyrrolidone is solvent, carries out the polyether sulphone that polyreaction obtains having sulfonation-non-sulfonated block structure under the effect of salt of wormwood.
Embodiment
For better understanding the present invention, below in conjunction with embodiment the present invention done and describe in detail further, but the scope of protection of present invention being not limited to the scope that embodiment represents.
Embodiment:
Reaction 1.
By 4g 4,4 '-dichloro diphenylsulfone, 2g 4,4 '-'-biphenyl diphenol is dissolved in 60g nitrogen methyl-2-pyrrolidone, stirring and dissolving at 90 DEG C, then add 2g salt of wormwood, react after 2 hours, add 20g toluene, be warming up to 150 DEG C and continue reactions 2 hours, be warming up to 180 DEG C steam toluene after continue reaction 96 hours.Stopped reaction, solution 60g nitrogen methyl-2-pyrrolidone dilution, filter, filtrate is precipitated to 800 milliliters of propyl alcohol, filters, solid at 120 DEG C, vacuum dry 48 hours, for subsequent use.
Reaction 2.
By 8g 3,3 '-disulfonic acid base-4,4 '-dichloro diphenylsulfone, 2g 4,4 '-'-biphenyl diphenol is dissolved in 60g nitrogen methyl-2-pyrrolidone, and stirring and dissolving at 90 DEG C, then adds 2g salt of wormwood, react after 2 hours, add 20g toluene, be warming up to 150 DEG C and continue reactions 2 hours, be warming up to 180 DEG C steam toluene after continue reaction 96 hours.Stopped reaction, solution 60g nitrogen methyl-2-pyrrolidone dilution, filter, filtrate is precipitated to 800 milliliters of acetone, filters, solid at 120 DEG C, vacuum dry 48 hours, for subsequent use.
Reaction 3.
The product 5.24g of the final drying of reaction 1, reaction 2 final dry product 0.95g, decafluorobiphenyl 0.1g are dissolved in 50g nitrogen methyl-2-pyrrolidone, stirring at room temperature is dissolved, and adds 0.2g salt of wormwood, is warming up to 105 DEG C, react 24 hours, stopped reaction, solution 50g nitrogen methyl-2-pyrrolidone dilution, filters, filtrate is precipitated to 800 milliliters of propyl alcohol, filter, solid at 120 DEG C, vacuum dry 48 hours, obtains final segmented copolymer.
Claims (2)
1. a segmented copolymer, the preparation process of its feature is as follows:
(1) with 4,4 '-dichloro diphenylsulfone, 4,4 '-'-biphenyl diphenol is monomer, nitrogen methyl-2-pyrrolidone is solvent, synthesizes the polyether sulphone of non-sulfonated under the effect of salt of wormwood.
(2) 3,3 '-disulfonic acid base-4,4 '-dichloro diphenylsulfone, 4,4 '-'-biphenyl diphenol is monomer, and nitrogen methyl-2-pyrrolidone is solvent, synthesizes the polyether sulphone of sulfonation under the effect of salt of wormwood.
(3) take decafluorobiphenyl as coupling agent, nitrogen methyl-2-pyrrolidone is solvent, under the effect of salt of wormwood, the polymkeric substance end of the chain coupling that (1) (2) are reacted is obtained sulfonation-non-sulfonated type block polyether sulphone.
2. polymer architecture according to claim 1 is sulfonated polyether sulphone-polyaryl ether sulfone block multipolymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696930.5A CN104327277A (en) | 2014-11-25 | 2014-11-25 | Segmented copolymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696930.5A CN104327277A (en) | 2014-11-25 | 2014-11-25 | Segmented copolymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104327277A true CN104327277A (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410696930.5A Pending CN104327277A (en) | 2014-11-25 | 2014-11-25 | Segmented copolymer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104327277A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022137A (en) * | 2017-06-09 | 2017-08-08 | 苏州朗创化工有限公司 | A kind of fire resistant environment-friendly electric wire stabilizer |
| CN107057167A (en) * | 2017-06-09 | 2017-08-18 | 嘉兴朗创塑料科技有限公司 | A kind of high-performance electric wire compound stabilizer being modified based on graphene |
| EP3850033B1 (en) | 2018-09-11 | 2023-05-17 | Basf Se | Polyarylene ether sulfone |
-
2014
- 2014-11-25 CN CN201410696930.5A patent/CN104327277A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022137A (en) * | 2017-06-09 | 2017-08-08 | 苏州朗创化工有限公司 | A kind of fire resistant environment-friendly electric wire stabilizer |
| CN107057167A (en) * | 2017-06-09 | 2017-08-18 | 嘉兴朗创塑料科技有限公司 | A kind of high-performance electric wire compound stabilizer being modified based on graphene |
| EP3850033B1 (en) | 2018-09-11 | 2023-05-17 | Basf Se | Polyarylene ether sulfone |
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| PB01 | Publication | ||
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Application publication date: 20150204 |
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| WD01 | Invention patent application deemed withdrawn after publication |