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

Transparent polymer non-aqueous proton conducting material and its preparing method

A transparent polymer, proton-conducting technology, applied in the field of polymer materials and electrochemical materials

Inactive Publication Date: 2005-12-21
TONGJI UNIV
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no similar reports in the literature

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
  • Transparent polymer non-aqueous proton conducting material and its preparing method
  • Transparent polymer non-aqueous proton conducting material and its preparing method
  • Transparent polymer non-aqueous proton conducting material and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The raw materials used are as follows:

[0021] Polyvinyl alcohol, the number average molecular weight Mn is 17200, the product of Aldrich company.

[0022] Imidazole is a product of Shanghai Runjie Chemical Reagent Co., Ltd.

[0023] 85wt% phosphoric acid, product of Shanghai United Chemical Plant.

[0024] The ratio of raw materials used is as follows:

[0025] Polyvinyl alcohol (MW=17200) 15 parts (number of moles of repeating units)

[0026] 0.5 part of imidazole (number of moles)

[0027] Phosphoric acid 1 part (moles)

[0028] Sample preparation:

[0029] According to the above ratio, phosphoric acid and imidazole were dissolved in deionized water, and stirred at a constant temperature of 90°C for 4 hours to prepare imidazolium phosphate. Dissolve polyvinyl alcohol in deionized water, and stir with a magnetic stirrer at a constant temperature of 100°C until the PVA is completely dissolved to obtain a transparent and uniform viscous li...

Embodiment 2

[0035] The ratio of raw materials used is as follows:

[0036] 15 parts of polyvinyl alcohol (Mn=17200) (number of moles of repeating units)

[0037] 1 part of pyrazole (number of moles)

[0038] Phosphoric acid 1 part (moles)

[0039] Dissolve polyvinyl alcohol and phosphoric acid in deionized water according to the above ratio, stir at a constant temperature of 100°C for 4 hours, mix evenly, and form a film on the polytetrafluoroethylene board by casting the solution, and dry it in vacuum , that is, an all-solid-state PYA / pyrazole / phosphoric acid composite proton-conducting membrane. The proton conductivity and light transmission properties of the obtained composite film are as follows: figure 1 and figure 2 shown.

Embodiment 3

[0041] The ratio of raw materials used is as follows:

[0042] 15 parts of polyvinyl alcohol (Mn=17200) (number of moles of repeating units)

[0043] 1 part of imidazole (number of moles)

[0044] Phosphoric acid 1 part (moles)

[0045] Dissolve polyvinyl alcohol, phosphoric acid and imidazole in deionized water according to the above ratio, stir at a constant temperature of 100°C for 4 hours, mix evenly, and form a film on the polytetrafluoroethylene plate by casting the solution, vacuum After drying, a fully homogeneous PVA / imidazole / phosphoric acid composite proton-conducting membrane can be obtained. The proton conductivity and light transmission properties of the obtained composite film are as follows: figure 1 and figure 2 shown.

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
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The present invention belongs to macromolecule material and electrochemistry technological fields, concretely relating to a kind of transparent polymer non-water proton electric material based on polyvinyl alcohol and nitrogen heterocyclic compound and its producing method. Its characteristic is: add nitrogen heterocyclic compound into normal polyvinyl alcohol / acid compound proton electric system, then its proton conductivity can improve 2 - 4 magnitudes. The light penetrating rate of polyvinyl alcohol / acid / nitrogen heterocyclic compound composite membrane is almost the same as normal polyvinyl alcohol / acid compound proton electric membrane in certain content bound of nitrogen heterocyclic compound. It can be widely used in various entire solid state electrochemistry apparatuses.

Description

technical field [0001] The invention belongs to the technical field of polymer materials and electrochemical materials, and in particular relates to a transparent polymer non-aqueous proton conductive material based on polyvinyl alcohol and nitrogen heterocyclic compounds and a preparation method thereof. Background technique [0002] Polymer non-aqueous proton-conducting materials have attracted people's attention due to their high electrical conductivity, wide operating temperature range, all-solid-state easy packaging, and stable physical and chemical properties. They can be widely used in medium-temperature fuel cells, electrochromic devices, and supercapacitors. , sensors and other all-solid-state electrochemical devices. The most researched polymer non-aqueous proton-conducting system is the composite system of polymer and protonic acid, polyvinyl alcohol / phosphoric acid composite membrane is one of the representative systems (Petty-Weeks S., Zupancic J.J.and Swedo J.R...

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): C08L29/04
Inventor 浦鸿汀黄平
Owner TONGJI UNIV
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