Comb-type polyether sulphone material containing long side group structure and preparation method of comb-type polyether sulphone material

A polyarylethersulfone and membrane material technology is applied in the field of comb-type polyarylethersulfone membrane material containing long side group structure and its preparation, which can solve the problems of molecular chain degradation, difficulty in accurately regulating the molecular structure and performance of polymers, and the like. Achieve the effect of simple preparation process, good gas separation performance, and good dissolution and film formation

Inactive Publication Date: 2017-06-23
CHANGZHOU UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the modification of the molecular structure of polyarylethersulfone is mainly through the post-modification of the polymer macromolecular structure. This method is difficult to precisely control the molecular structure and properties of the modified polymer, and it is easy to cause the degradation of the molecular chain.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Comb-type polyether sulphone material containing long side group structure and preparation method of comb-type polyether sulphone material
  • Comb-type polyether sulphone material containing long side group structure and preparation method of comb-type polyether sulphone material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) In a 100ml dry three-necked flask equipped with mechanical stirring, nitrogen protection and water separator, add 1.8579g (4mmol) of 1,1-bis(4-hydroxyphenyl)-1-(4-(3 ,5-Dimethyl)phenoxy)phenyl-2,2,2-trifluoroethane (taking x = 0.4 as an example for the content of large substituted side group structural units in sparse shape), 1.1173g (6mmol) of biphenyl Diphenol, 2.5425g (10mmol) of 4,4'-difluorodiphenylsulfone monomer, 1.3821g (10mmol) of potassium carbonate, 11ml of N-methylpyrrolidone and 5ml of toluene, azeotropic dehydration at 110°C for 4h Afterwards, the temperature was further raised to 150° C. for co-condensation reaction for 10 h, the reaction was terminated, and the reaction solution was poured into ethanol to obtain a fibrous comb-type polyarylethersulfone resin with a long side group structure, with a yield of 99%; 1 H NMR (CDCl 3 ,400MHz) as attached figure 1 shown.

[0021] (2) Further dissolve the comb-type polyarylethersulfone resin containing lo...

Embodiment 2

[0023] (1) In a 100ml dry three-necked flask equipped with mechanical stirring, nitrogen protection and water trap, add 2.7869g (6mmol) of 1,1-bis(4-hydroxyphenyl)-1-(4-(3 ,5-Dimethyl)phenoxy)phenyl-2,2,2-trifluoroethane (taking x = 0.6 as an example for the content of large substituted side group structural units in sparse shape), 0.7448g (4mmol) of biphenyl Diphenol, 2.5425g (10mmol) of 4,4'-difluorodiphenylsulfone monomer, 1.7967g (13mmol) of potassium carbonate, 23ml of N-methylpyrrolidone and 6ml of toluene, azeotropic dehydration at 140°C for 2h Afterwards, the temperature was further raised to 170° C. for 5 hours of co-condensation reaction, and the reaction was terminated. The reaction solution was poured into ethanol to obtain a fibrous comb-type polyarylethersulfone resin with a long side group structure, with a yield of 99%.

[0024] (2) Further dissolve the comb-type polyaryl ether sulfone resin containing long side group structure in N-methylpyrrolidone solution t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a comb-type polyether sulphone material containing a long side group structure and a preparation method thereof. The preparation method comprises the following steps: under the nitrogen protection, respectively adding a certain amount of three monomers into a reaction bottle, such as active bisphenol containing the long side group structure, biphenol and 4,4apostrophe-difluorodiphenyl sulfone, and adding a proper amount of solvent and dewatering agent; under the function of an alkaline catalyst, performing aromatic nucleophilic substitution condensation polymerization reaction, so as to obtain the comb-type polyether sulphone material containing the 3,5apostrophe-dimethylphenoxy benzene long side group structure. The comb-type polyether sulphone material containing the long side group structure has the advantages that the dissolving film forming property is good, and a prepared thin film has important application value in the gas separating film field; by performing the polymer functionalizing reaction, the high-property anion exchange membrane material is prepared.

Description

technical field [0001] The invention belongs to the field of polyaryl ether sulfone membrane materials and their preparation, and in particular relates to a comb-type polyaryl ether sulfone membrane material with a long side group structure and a preparation method thereof. Background technique [0002] Polyarylethersulfone is an important functional polymer material, which can be used as flat membrane and hollow fiber membrane in many high-tech fields such as gas separation, seawater desalination, hemodialysis, fuel cell ion exchange membrane, etc. However, when used as a gas separation membrane, due to the rigidity and regularity of the polymer molecular chain structure, the polyarylethersulfone membrane usually has shortcomings such as low permeability coefficient and slow separation speed, which are difficult to meet the development needs of modern high-efficiency separation equipment. It has important research value and application value to modify the molecular structur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/22C08L81/06C08L71/08C08G65/40C08G75/23H01M8/0239
CPCC08G65/40C08G75/23C08J5/18C08J5/2262C08J2371/00C08J2381/06H01M8/0239Y02E60/50
Inventor 汪称意徐常赵晓燕李坚任强
Owner CHANGZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap