Synthesizing method of porous ion liquid polymer

A technology of ionic liquids and synthesis methods, applied in organic chemistry and other fields, can solve the problems of low adsorption efficiency, long adsorption time, and high technical cost, and achieve the effects of short adsorption time, high CO2 concentration, and low technical cost

Inactive Publication Date: 2010-07-28
CHINA UNIV OF MINING & TECH
View PDF2 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In industrial applications, the pressure swing adsorption method has the following disadvantages: the traditional adsorbent has low adsorption efficiency, requires a large amount, and the technical cost is high, and the obtained CO 2 The concentration is low;

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
  • Synthesizing method of porous ion liquid polymer
  • Synthesizing method of porous ion liquid polymer
  • Synthesizing method of porous ion liquid polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: the synthetic process flow that the present invention prepares porous ionic liquid polymer is:

[0019]

[0020] The synthetic method of porous ionic liquid polymer, its synthetic method comprises A, B, C and D four steps:

[0021] A. use the chlorinated 1-allyl-3-methylimidazole ionic liquid of formula (II) to react 1-methylimidazole and chloropropene of formula (I); in the synthetic method of preparation formula (II), Under the protection of an inert gas, the molar ratio of 1-methylimidazole and allyl chloride of the formula (I) is 1:1.0 to 1.3, and the reaction is stirred at room temperature to 80°C for 1 to 24 hours;

[0022] B. Use formula (II) to react 1-allyl-3-methylimidazolium ionic liquid and fluoroboric acid to generate 1-allyl-3-methylimidazolium tetrafluoroborate ionic liquid of formula (III) ; In the synthetic method for preparing formula (III), the mol ratio of the chloride 1-allyl-3-methylimidazolium ionic liquid of formula (II) and flu...

Embodiment 2

[0026] Example 2: 1-allyl-3-methylimidazolium tetrafluoroborate ([amim]BF 4 )Synthesis:

[0027] Add 2.0gl-methylimidazole and 2.20g allyl chloride into the three-necked flask, N 2 Protection, heated to reflux in an oil bath at 60°C, and stirred for 7h. Evaporate under vacuum at 40°C to remove excess allyl chloride, and cool to room temperature. Use diethyl ether as the extractant and vigorously stir to remove residual 1-methylimidazole. The solvent was evaporated and dried in vacuo for 4h to obtain dark yellow viscous liquid [amim]Cl.

[0028] 2.51g 40% HBF 4 Slowly added to 2.0g [amim]Cl, stirred electromagnetically at room temperature for 2h, and extracted with chloroform (10mL×3). The organic phase was evaporated in vacuo at 90°C to obtain light yellow mucus [amim]BF 4 .

[0029] 1-allyl-3-methylimidazolium tetrafluoroborate and acrylonitrile copolymer ([amim]BF 4 / AN) synthesis

[0030] 2 mL of anhydrous dimethyl sulfoxide, 0.6 g of acrylonitrile, 1.4 g of [amim]...

Embodiment 3

[0033] Example 3: 10 mL of n-octane was used as the porogen for the two-step seed swelling method, and the rest of the synthesis steps and raw material consumption were the same as in Example 2.

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 relates to a synthesizing method of a porous ion liquid polymer, belonging to the field of synthesizing methods for separating and revering CO2 polymers. The synthesizing method of the porous ion liquid polymer comprises the following steps of: A, performing reaction of 1-methylimidazole and chloropropene to generate chlorinated 1-allyl-3-methylimidazole ion liquid; B, performing reaction of the chlorinated 1-allyl-3-methylimidazole ion liquid and fluoboric acid to generate 1-allyl-3-methylimidazole tetrafluoroborate ion liquid; C, performing reaction of the 1-allyl-3-methylimidazole tetrafluoroborate ion liquid with acrylonitrile to generate an ion liquid polymer; D, preparing the porous ion liquid polymer, i.e. adding sodium dodecyl benzene sulfonate, dibutyl phthalate and deionized water to carry out activation by taking the ion liquid polymer as a seedball, then respectively adding normal heptane, normal octane and toluene or cyclohexane to carry out swelling, then adding a monomer and benzoperoxide to carry out secondary swelling, and adding polyvinyl alcohol to carry out polymerization so as to obtain the porous ion liquid polymer. The invention has moderate reaction condition and short CO2 absorption time and high absorption amount in industrial application.

Description

technical field [0001] The invention relates to a method for separating and recovering CO 2 A method for synthesizing a polymer, in particular a method for synthesizing a porous ionic liquid polymer. Background technique [0002] In recent years, human society is facing enormous environmental pressure due to global warming. Excessive emission of greenhouse gases is the main cause of global warming, among the greenhouse gases CO 2 Large content and long retention time, thus reducing CO 2 Curbing global warming has become an important issue for the sustainable development of human society. [0003] Currently, pressure swing adsorption is used to treat CO 2 Separation and recovery, and the use of ionic liquids as new efficient and environmentally friendly absorbents. In industrial applications, the pressure swing adsorption method has the following disadvantages: the traditional adsorbent has low adsorption efficiency, requires a large amount, and the technical cost is hig...

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
IPC IPC(8): C07D233/06C08F226/06C08J9/14
Inventor 朱佳媚周建华
Owner CHINA UNIV OF MINING & TECH
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