JPS5586821A - Production of bipolar film - Google Patents
Production of bipolar filmInfo
- Publication number
- JPS5586821A JPS5586821A JP15863878A JP15863878A JPS5586821A JP S5586821 A JPS5586821 A JP S5586821A JP 15863878 A JP15863878 A JP 15863878A JP 15863878 A JP15863878 A JP 15863878A JP S5586821 A JPS5586821 A JP S5586821A
- Authority
- JP
- Japan
- Prior art keywords
- film
- covering layer
- group
- sulfonating
- layer
- 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
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
PURPOSE:To obtain a bipolar film, by covering one side of a high polymer film having a functional group capable of introducing ion exchange groups with a layer, by sulfonating the other side of the film to introduce a cation, followed by releasing the covering layer to produce the untreated side, to which an anion is introduced. CONSTITUTION:A covering layer is placed on one side of a high polymer film having a functional group suitable to introduce ion exchange groups to make a composite so that the surface is inactive in sulfonation. The other side of the film is sulfonated so that a cation exchange group is introduced. The covering layer is separated and an anion exchange group is introduced into the released surface. Polypropylene, etc., capable of not being corroded by a sulfonating liquid, may be used as the covering layer. Sulfonating reaction, done by sulfuric acid, etc., forms a layer made of sulfonic group to a thickness of 1/10-9/10 of the cross-sectional area of the film on the one side of the film. The introduction of the anion exchange group can be carried out by any conventional method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15863878A JPS5586821A (en) | 1978-12-25 | 1978-12-25 | Production of bipolar film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15863878A JPS5586821A (en) | 1978-12-25 | 1978-12-25 | Production of bipolar film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5586821A true JPS5586821A (en) | 1980-07-01 |
Family
ID=15676077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15863878A Pending JPS5586821A (en) | 1978-12-25 | 1978-12-25 | Production of bipolar film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586821A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS601234A (en) * | 1983-06-17 | 1985-01-07 | Toyo Soda Mfg Co Ltd | Fluorine-containing bipolar membrane |
JPS6395235A (en) * | 1986-10-13 | 1988-04-26 | Tokuyama Soda Co Ltd | Production of composite ion exchange membrane |
EP0459820A2 (en) * | 1990-05-31 | 1991-12-04 | Tokuyama Corporation | Bipolar membrane and method for its production |
-
1978
- 1978-12-25 JP JP15863878A patent/JPS5586821A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS601234A (en) * | 1983-06-17 | 1985-01-07 | Toyo Soda Mfg Co Ltd | Fluorine-containing bipolar membrane |
JPH0450335B2 (en) * | 1983-06-17 | 1992-08-14 | Tosoh Corp | |
JPS6395235A (en) * | 1986-10-13 | 1988-04-26 | Tokuyama Soda Co Ltd | Production of composite ion exchange membrane |
EP0459820A2 (en) * | 1990-05-31 | 1991-12-04 | Tokuyama Corporation | Bipolar membrane and method for its production |
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