Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Sulfonated calixarene grafted polybenzimidazole proton exchange membrane material and preparation method thereof

A technology of sulfonated calixarene and proton exchange membrane, which is applied in fuel cells, electrochemical generators, electrical components, etc., can solve the problems of limiting the promotion of polybenzimidazole, proton conductivity cannot be maintained, and polymer solubility is poor. Achieve good ion conductivity, enhanced conductivity, and good conductivity

Active Publication Date: 2020-09-29
SHENZHEN GAS CORP +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the high-temperature fuel cell operation test, it was found that there was a loss of phosphoric acid, so the proton conductivity of the membrane could not be maintained at a stable level, and there was a certain degree of decline
At the same time, the common commercial polybenzimidazoles on the market are mostly obtained by polycondensation of biphenyltetramine with a rigid structure, resulting in poor polymer solubility, which limits the promotion and application of polybenzimidazoles in the field of high-temperature proton exchange membranes. further development

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
  • Sulfonated calixarene grafted polybenzimidazole proton exchange membrane material and preparation method thereof
  • Sulfonated calixarene grafted polybenzimidazole proton exchange membrane material and preparation method thereof
  • Sulfonated calixarene grafted polybenzimidazole proton exchange membrane material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058]The present invention provides a proton exchange membrane material and preparation method of sulfonated calixarene grafted polybenzimidazole. In order to make the purpose, technical scheme and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0059] The present invention will be described in detail below through specific examples.

[0060] (1) Synthesis of compound 2 (hydroxycalixarene)

[0061]

[0062] For the method of preparing compound 2 (hydroxycalixarene) from compound 1 (p-tert-butylcalixarene), please refer to the reference: Zheng Wenjun. Supramolecular Self-Assembly Based on Calixarene and Binaphthalene Diol [Master Thesis]. Qingdao: Qingdao Science and Technology University. 2019.

[0063] (2) Preparation of Compound 5 (N-(4-acetyl-2-ni...

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
tensile strengthaaaaaaaaaa
thermal decomposition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sulfonated calixarene grafted polybenzimidazole proton exchange membrane material and a preparation method thereof. The structural formula of the proton exchange membrane material is shown in the specification, wherein n is an integer between 5000 and 10000. According to the invention, sulfonated calixarene is grafted to polybenzimidazole to design the proton exchange membrane material based on sulfonated calixarene grafted polybenzimidazole; the strength problem of the proton membrane is solved by utilizing the rigidity of polybenzimidazole, the electric conduction problem of the proton membrane is solved by utilizing the sulfonation structure of the calixarene, a channel can be provided for proton transfer by utilizing an electron-rich structure model in calixarene, and the problem of large-scale proton migration is well solved.

Description

technical field [0001] The invention relates to the technical field of proton exchange membrane materials, in particular to a proton exchange membrane material and a preparation method of sulfonated calixarene grafted polybenzimidazole. Background technique [0002] Polybenzimidazole (PBI) is a class of polymers containing imidazole groups in the molecular chain. Due to its high glass transition temperature, good chemical stability and mechanical stability, it is widely used in the field of proton exchange membranes. It has a good application prospect. PBI itself does not have a group that can transfer protons, but after being doped with acid, it can obtain a certain proton conductivity, and the imidazole group under acidic conditions will be protonated and positively charged, which can effectively block the cross-penetration of vanadium ions . As a functional material with excellent stability and mechanical properties, PBI has been widely used in fields such as hydrogen f...

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): C08J5/22C08G73/18H01M8/124C08L79/04
CPCC08J5/2256C08G73/18H01M8/124C08J2379/04Y02E60/50
Inventor 沈威何卫杨炜樱夏孝杰滕伟
Owner SHENZHEN GAS CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com