JPS55160030A - Sulfonic group-containing fluorinated cation exchange membrane and production thereof - Google Patents
Sulfonic group-containing fluorinated cation exchange membrane and production thereofInfo
- Publication number
- JPS55160030A JPS55160030A JP5175580A JP5175580A JPS55160030A JP S55160030 A JPS55160030 A JP S55160030A JP 5175580 A JP5175580 A JP 5175580A JP 5175580 A JP5175580 A JP 5175580A JP S55160030 A JPS55160030 A JP S55160030A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- contg
- exchange membrane
- production
- cation exchange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
PURPOSE: To obtain sulfonic gp.-contg. fluorinated cation-exchange membrane which is tough and has high ion-exchange capacity, by a method wherein a membrane is produced from a copolymer of tetrafluoroethylene and a specific sulfur- contg. fluorinated vinyl ether, and subjected to oxidation, halogenation and/or hydrolysis.
CONSTITUTION: A sulfur-contg. fluorinated vinyl ether of formula (wherein k is 0,1; l is 3W5; X is DR1, SO2R2; R1 is 1W10C alkyl, aryl, Cl, 1W10C perfluoroalkyl; R2 is R1, F or OM; M is H, matal, NH4) is copolymerized with CF2=CF2 in the presence of a free-radical initiator. The resulting copolymer is molded into a membrane. When X is SR1, the membrane is halogenated with Cl2 and then hydrolyzed under alkali conditions to introduced SO3H gp. When X is SO2F, the membrane is hydrolyzed under alkali conditions to convert SO2F to SO3M. In this way, there are obtd. membranes which have good chemical resistance and heat resistance and can be used under high current density conditions.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5175580A JPS55160030A (en) | 1980-04-21 | 1980-04-21 | Sulfonic group-containing fluorinated cation exchange membrane and production thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5175580A JPS55160030A (en) | 1980-04-21 | 1980-04-21 | Sulfonic group-containing fluorinated cation exchange membrane and production thereof |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6788979A Division JPS55160007A (en) | 1979-05-31 | 1979-05-31 | Novel fluorinated copolymer and production thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55160030A true JPS55160030A (en) | 1980-12-12 |
JPS6258382B2 JPS6258382B2 (en) | 1987-12-05 |
Family
ID=12895746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5175580A Granted JPS55160030A (en) | 1980-04-21 | 1980-04-21 | Sulfonic group-containing fluorinated cation exchange membrane and production thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160030A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4474700A (en) * | 1981-07-02 | 1984-10-02 | E. I. Du Pont DeNemours and Company | β-Substituted polyfluoropropionate salts and derivatives |
WO2013019614A2 (en) * | 2011-08-04 | 2013-02-07 | 3M Innovative Properties Company | Low equivalent weight polymers |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6411922U (en) * | 1987-07-09 | 1989-01-23 |
-
1980
- 1980-04-21 JP JP5175580A patent/JPS55160030A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4474700A (en) * | 1981-07-02 | 1984-10-02 | E. I. Du Pont DeNemours and Company | β-Substituted polyfluoropropionate salts and derivatives |
WO2013019614A2 (en) * | 2011-08-04 | 2013-02-07 | 3M Innovative Properties Company | Low equivalent weight polymers |
WO2013019614A3 (en) * | 2011-08-04 | 2013-04-04 | 3M Innovative Properties Company | Low equivalent weight polymers |
US20140141357A1 (en) * | 2011-08-04 | 2014-05-22 | Kai H. Lochhaas | Low equivalent weight polymers |
US9711816B2 (en) * | 2011-08-04 | 2017-07-18 | 3M Innovative Properties Company | Low equivalent weight polymers |
Also Published As
Publication number | Publication date |
---|---|
JPS6258382B2 (en) | 1987-12-05 |
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