Amino-containing crosslinkable polyether sulfone as well as preparation method and applications thereof

A polyaryl ether sulfone and amino group-containing technology, which is applied in the field of polymer carbon nanotube composite membrane and its preparation, can solve the problems that the gas permeability coefficient and selectivity coefficient cannot be improved at the same time, so as to broaden the scope of use and overcome the decline in selectivity , The effect of increasing the glass transition temperature

Inactive Publication Date: 2014-07-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the problem that the existing gas separation membranes cannot improve the gas permeability coefficient and selectivity coefficient at the same time, the present invention provides an amino group-containing cross-linkable polyarylether sulfone and its preparation method, as well as the use of it to prepare gas Membrane separation method

Method used

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  • Amino-containing crosslinkable polyether sulfone as well as preparation method and applications thereof
  • Amino-containing crosslinkable polyether sulfone as well as preparation method and applications thereof
  • Amino-containing crosslinkable polyether sulfone as well as preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 0.002mol4-aminophenylhydroquinone, 0.001mol3,3'-diallylbiphenol, 0.017mol of biphenol, 0.0202mol4,4'-dichlorodiphenyl sulfone, 0.024mol Potassium carbonate water was added to a three-necked flask equipped with a mechanical stirrer, a thermometer, a water device and a condenser, and argon was introduced for protection. 24m1 sulfolane was added, with a solid content of 24.4%, and 10m1 toluene was added. After 3 hours with water at 140-150°C, the toluene was evaporated, and the temperature was raised to 165-170°C to continue the reaction for 5.5 hours. The product was poured into distilled water, filtered and crushed, washed with distilled water and ethanol for 3 times respectively, and vacuum-dried at 60°C for 12 hours to obtain 7.90 g of refined off-white copolymer powder with a yield of 96% and a polymer logarithmic ratio. The viscosity is 0.43dL / g. The results of DSC study showed that the glass transition temperature of the prepared cross-linkable polyaryl ether sulfo...

Embodiment 2

[0045] Embodiment 2 (copolymer A)

[0046] 0.002mol4-aminophenylhydroquinone, 0.002mol3,3'-diallylbiphenol, 0.016mol of biphenol, 0.0202mol4,4'-dichlorodiphenyl sulfone, 0.024mol Potassium carbonate water was added to a three-necked flask equipped with a mechanical stirrer, a thermometer, a water device and a condenser, and argon was introduced for protection. 24m1 sulfolane was added, with a solid content of 24.4%, and 10m1 toluene was added. After 3 hours with water at 140-150°C, the toluene was evaporated, and the temperature was raised to 165-170°C to continue the reaction for 5.5 hours. The product was poured into distilled water, filtered and crushed, washed with distilled water and ethanol for 3 times respectively, and vacuum-dried at 60°C for 12 hours to obtain a refined off-white copolymer powder with a yield of 95%. The logarithmic viscosity of the polymer was 0.35dL / g. The results of DSC study showed that the glass transition temperature of the prepared cross-link...

Embodiment 3

[0047] Embodiment 3 (copolymer B)

[0048] 0.002mol4-aminophenylhydroquinone, 0.003mol3,3'-diallylbiphenol, 0.015mol of biphenol, 0.0202mol4,4'-dichlorodiphenyl sulfone, 0.024mol Potassium carbonate water was added to a three-necked flask equipped with a mechanical stirrer, a thermometer, a water device and a condenser, and argon was introduced for protection. 24m1 sulfolane was added, with a solid content of 24.4%, and 10m1 toluene was added. After 3 hours with water at 140-150°C, the toluene was evaporated, and the temperature was raised to 165-170°C to continue the reaction for 5.5 hours. The product was poured into distilled water, filtered and crushed, washed with distilled water and ethanol for 3 times respectively, and vacuum-dried at 60°C for 12 hours to obtain a refined off-white copolymer powder with a yield of 96%. The polymer logarithmic viscosity was 0.43dL / g. The results of DSC study showed that the glass transition temperature of the prepared cross-linkable po...

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Abstract

The invention relates to an amino-containing crosslinkable polyether sulfone and a preparation method thereof and applications of a gas separation membrane, belonging to the field of a polymer nanocomposite material. Aiming at solving the problems of compatibility of gas permeability and separating property of the existing gas separation membrane, a membrane formed mixing and casting crosslinkable polyether sulfone with molecular side chain containing phenylamino and allyl, together with pyrrolidone, or a thermal-crosslinked membrane is formed by adding benzoyl peroxide in mixing with N-methyl pyrrolidone and casting can be utilized, in addition, a mixed matrix membrane or mixed matrix thermal-crosslinked membrane can formed by adding a multiwalled carbon nanotube. The amino containing can have hydrogen bond interaction with carboxyl of the carbon nanotube, the carbon nanotube can be more evenly dispersed in polymer, and the two interfaces have good binding power, so that the gas permeability and selectivity of the mixed matrix membrane can be enhanced. The amino-containing crosslinkable polyether sulfone is used for preparing the gas separation membrane and gas separation.

Description

technical field [0001] The invention belongs to the technical field of polymer nanocomposite materials, and in particular relates to a polymer carbon nanotube composite film and its preparation method and application. Background technique [0002] Membrane separation technology has the advantages of high efficiency, environmental protection and energy saving, and is considered to be the most promising third-generation gas separation technology after cryogenic distillation and pressure swing adsorption. According to the material, gas separation membranes can be divided into three types: inorganic membranes, polymer organic membranes and mixed matrix membranes. Inorganic membranes have the advantages of high gas permeability coefficient, good selectivity, excellent thermal stability, stable chemical properties and high mechanical strength, but there are also disadvantages such as relatively expensive manufacturing costs, single surface groups, and brittle and difficult to proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G75/23C08L81/06C08J5/18C08J3/24C08K9/00C08K7/00C08K3/04B01D71/68B01D69/12B01D67/00B01D53/22
Inventor 杨延华张航刘韬苏宇于洪洋姜振华王贵宾
Owner JILIN UNIV
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