JPS5695924A - Preparation of improved cation exchange membrane - Google Patents
Preparation of improved cation exchange membraneInfo
- Publication number
- JPS5695924A JPS5695924A JP17260479A JP17260479A JPS5695924A JP S5695924 A JPS5695924 A JP S5695924A JP 17260479 A JP17260479 A JP 17260479A JP 17260479 A JP17260479 A JP 17260479A JP S5695924 A JPS5695924 A JP S5695924A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- formula
- cation exchange
- exchange membrane
- substituent
- 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.)
- Pending
Links
Abstract
PURPOSE: To obtain a high-performance cation exchange membrane, stable for a long period of time, by treating a cation exchange membrane consisting of a carboxylic acid group-containing perfluorocarbon polymer, with an organic solvent, and then forming a crosslinked structure in the membrane.
CONSTITUTION: A perfluorocarbon polymer containing a substituent of formula I [wherein n is 2W5; A is CN, COF, formula II, III or IV (when R1 is a 1W10C alkyl; R2 and R3 are H or R1; M is H, Na, K or NH4)], is molded into a membrane, and the sustituent of the formula I is partially converted into a substituent of formula V (wherein n is 2W5). After the membrane is swelled with an organic solvent (e.g., methanol) of water-solubility ≥0.1g/100g water at room temprature, the organic solvent is removed from the membrane. During or after the removal, the membrane is crosslinked by the coupling reaction of a substituent of the formula II, by use of UV, heat or a radical reaction initiator. A cation exchange membrane having excellent performance for a long period of time is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17260479A JPS5695924A (en) | 1979-12-29 | 1979-12-29 | Preparation of improved cation exchange membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17260479A JPS5695924A (en) | 1979-12-29 | 1979-12-29 | Preparation of improved cation exchange membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5695924A true JPS5695924A (en) | 1981-08-03 |
Family
ID=15944935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17260479A Pending JPS5695924A (en) | 1979-12-29 | 1979-12-29 | Preparation of improved cation exchange membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5695924A (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 |
-
1979
- 1979-12-29 JP JP17260479A patent/JPS5695924A/en active Pending
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 |
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