JPS5695925A - Method of increasing ion exchange capacity of cation exchange membrane - Google Patents
Method of increasing ion exchange capacity of cation exchange membraneInfo
- Publication number
- JPS5695925A JPS5695925A JP17260579A JP17260579A JPS5695925A JP S5695925 A JPS5695925 A JP S5695925A JP 17260579 A JP17260579 A JP 17260579A JP 17260579 A JP17260579 A JP 17260579A JP S5695925 A JPS5695925 A JP S5695925A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- substituent
- membrane
- acid group
- exchange capacity
- 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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE: To increase exchange capacity and to improve mechanical strength, by molding a carboxylic acid group- or sulfonic acid group-containing perfluoro-carbon polymer into a membrane and introducing a poly-valent carboxylic group-containing fluorocarbon compound.
CONSTITUTION: A perfluorocarbon polymer containing a substituent of formula I [wherein n is 2W5; A is CN, COF, formula II, III or IV (where R1 is a 1W10C alkyl; R2 and R3 are H, or R1; M is H, Na, K or NH4)] and/or a substituent of formula V [wherein n is 2W5; B is halogen or M (where M is as described above)] is molded into a membrane, and a substituent of formula VI is introduced from the substituent of the formula I and/or the substituent of the formula V. A cation exchange membrane, increased in ion exchange capacity, improved in mechanical strength and enhanced in electro-chemical property, is prepared by the action of a fluorocarbon compound (e.g., 1-chloro-1,2-difluoro-2-iodomaleic anhydride) which has a functional group capable of being added or coupled with the substituent of the formula VI and additionally a polycarboxylic acid group or a group capable of converting into a polycarboxylic acid group.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17260579A JPS5695925A (en) | 1979-12-29 | 1979-12-29 | Method of increasing ion exchange capacity of cation exchange membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17260579A JPS5695925A (en) | 1979-12-29 | 1979-12-29 | Method of increasing ion exchange capacity of cation exchange membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5695925A true JPS5695925A (en) | 1981-08-03 |
JPS615491B2 JPS615491B2 (en) | 1986-02-19 |
Family
ID=15944955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17260579A Granted JPS5695925A (en) | 1979-12-29 | 1979-12-29 | Method of increasing ion exchange capacity of cation exchange membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5695925A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4531011A (en) * | 1983-03-04 | 1985-07-23 | E. I. Du Pont De Nemours And Company | Alkyl perfluoro-omega-(2-iodoethoxy) compounds and vinyl ethers therefrom |
US4594458A (en) * | 1983-03-04 | 1986-06-10 | E. I. Du Pont De Nemours And Company | Vinyl ether monomers derived from alkyl perfluoro-ω-(2-iodoethoxy) compounds |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10046800B2 (en) | 2016-08-10 | 2018-08-14 | Ford Global Technologies, Llc | Trailer wheel targetless trailer angle detection |
-
1979
- 1979-12-29 JP JP17260579A patent/JPS5695925A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4531011A (en) * | 1983-03-04 | 1985-07-23 | E. I. Du Pont De Nemours And Company | Alkyl perfluoro-omega-(2-iodoethoxy) compounds and vinyl ethers therefrom |
US4594458A (en) * | 1983-03-04 | 1986-06-10 | E. I. Du Pont De Nemours And Company | Vinyl ether monomers derived from alkyl perfluoro-ω-(2-iodoethoxy) compounds |
Also Published As
Publication number | Publication date |
---|---|
JPS615491B2 (en) | 1986-02-19 |
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