Unlock instant, AI-driven research and patent intelligence for your innovation.

Ether oxygen bond-free type polymer anion-exchange membrane and preparation method thereof

An anion exchange membrane and polymer technology, applied in the field of ion exchange membrane without ether oxygen bond and its preparation, can solve the problem of inability to take into account the ion conductivity and stability of basic ion exchange membrane, achieve a wide range of solvent selection, Good solubility and fewer reaction steps

Active Publication Date: 2019-02-05
DALIAN UNIV OF TECH
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for better control over how well an organic material made up from different chemicals react together when forming films on porous supports like silicon dioxide (SiO2) or glasses. By controlling these reactions with specific groups that don't have any atoms attached at one end called primary amines, this process becomes more efficient than previous methods such as adding other substituents during synthesis. Additionally, by allowing certain types of molecules within each layer to interact through direct interactions between them instead of just connecting their ends, it makes possible easier to separate layers after formation into thin film structures. Overall, this new method simplifies the manufacturing processes while maintaining high-quality products.

Problems solved by technology

The technical problem addressed in this patented text relates to improving the durability and effectiveness of aluminum hydride batteries due to their lacking ability to effectively transport positive or negative charges when they operate at different levels of voltage. This results in decreased lifetimes over longer periods compared to other types of rechargeable batteries like lithium based ones. Therefore, there is a desire to develop new materials capable of better supporting these charged particles while also being able to prevent decomposition caused by weaknesses on certain parts of the device' s components.

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
  • Ether oxygen bond-free type polymer anion-exchange membrane and preparation method thereof
  • Ether oxygen bond-free type polymer anion-exchange membrane and preparation method thereof
  • Ether oxygen bond-free type polymer anion-exchange membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Synthesis of polymers without ether oxygen bonds: under ice-water bath conditions, 1.0694g (4mmol) α,α-diphenyl-4-piperidinemethanol, 0.8240g (5.6mmol) indole-2,3-di Ketone, 7.43mL (84mmol) of trifluoromethanesulfonic acid were added to the three-necked flask of 50mL, and then 7.2mL of dichloromethane was added to make a mixed solution. After mechanical stirring for 30min, the temperature was gradually raised to room temperature, and kept at room temperature to react 4- 8 days. After the reaction, the product was crushed with tweezers and placed in ice water under mechanical stirring to obtain a white blocky polymer. The product was repeatedly washed and soaked with deionized water, and then dried to obtain a polymer, which was ready for use.

[0041] Preparation of functionalized ether-oxygen bond-free polymer anion exchange membrane: under nitrogen protection, weigh 0.15g of ether-oxygen bond-free aryl polymer into a 10mL three-necked flask, dissolve with 6mL DMSO, an...

Embodiment 2

[0046]Synthesis of polymer containing secondary amine group without ether oxygen bond: under ice-water bath conditions, 1.0694g (4mmol) α,α-diphenyl-4-piperidinemethanol, 0.8240g (5.6mmol) indole-2, 3-Dione and 7.43mL (84mmol) of trifluoromethanesulfonic acid were added to a 50mL three-necked flask, and then 7.2mL of dichloromethane was added to form a mixed solution. After mechanical stirring for 30min, the temperature was gradually raised to room temperature and kept at room temperature. React 4-8 days. After the reaction, the product was crushed with tweezers and placed in ice water under mechanical stirring to obtain a white blocky polymer. The product was repeatedly washed and soaked with deionized water, and then dried to obtain a polymer, which was ready for use.

[0047] Synthesis of 1-(6-bromohexyl)-1-methyl-4-piperidine bromide ionic liquid: Dissolve 5mL of 1,6-dibromohexane in 20mL of ethyl acetate with a 50mL single-necked flask, add 2.82 g N-methylpiperidine, rea...

Embodiment 3

[0053] Synthesis of polymer containing secondary amine group without ether oxygen bond: same as Example 2

[0054] Synthesis of 1-bromohexyl-1-methylpyrrolidine bromide ionic liquid: Dissolve 5mL of 1,6-dibromohexane in 15mL of ethyl acetate with a 50mL single-necked flask, add 1.754g of N-methylpyrrolidine , and reacted at 60 °C for 24 h to obtain the precipitated product in the form of milky white powder. The product was repeatedly washed with ethyl acetate for 3 to 5 times, and dried under vacuum at 60 °C for 12 h to obtain a milky white powdery ionic liquid.

[0055] Preparation of polyhexane branched-chain pyrrolidine functionalized ether-oxygen bond-free polymer anion exchange membrane: under nitrogen protection, weigh 0.15g of amine group-substituted ether-oxygen bond-free polymer into a 25mL three-neck flask, dissolve with 6mL DMSO, and wait for After the polymer is fully dissolved, add 0.2081g K 2 CO 3 and 6 mL, 0.3096 g of a DMSO solution of 1-bromohexyl-1-methylp...

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

PropertyMeasurementUnit
Ionic conductivityaaaaaaaaaa
Ionic conductivityaaaaaaaaaa
Ionic conductivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an ether oxygen bond-free type polymer anion-exchange membrane and a preparation method thereof and belongs to the technical field of alkaline anion-exchange membranes. The ether oxygen bond-free type polymer anion-exchange membrane is characterized in that firstly, an ether oxygen bond-free aryl polymer with good solubility and stability is synthesized, then with amino groups of the polymer serving as grafting sites, the polymer is subjected to functionalized grafting to obtain a membrane material, and the membrane material is made into the membrane. The prepared membrane has good alkaline stability and high ion conductivity and can be applied to alkaline polymer electrolytic cells.

Description

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

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
Owner DALIAN UNIV OF TECH