JPS5695926A - Preparation of improved cation exchange membrane - Google Patents
Preparation of improved cation exchange membraneInfo
- Publication number
- JPS5695926A JPS5695926A JP17280379A JP17280379A JPS5695926A JP S5695926 A JPS5695926 A JP S5695926A JP 17280379 A JP17280379 A JP 17280379A JP 17280379 A JP17280379 A JP 17280379A JP S5695926 A JPS5695926 A JP S5695926A
- Authority
- JP
- Japan
- Prior art keywords
- substituent
- formula
- membrane
- group
- exchange membrane
- 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
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
PURPOSE: To obtain an ion exchange membrane with excellent electrochemical and mechanical properties, by molding a carboxylic acid type substituent-containing fluoropolymer into a membrane, then partially converting said substituent into a specified iodine-containing group, and crosslinking said iodine-containing group.
CONSTITUTION: A fluorocopolymer 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)] is molded into a membrane and the substituent of the formula I is partially converted into a substituent of formula V (wherein n is 2W5). When the original membrane contains, as a functional group, not a carboxylic group but a functional group convertible into a carboxylic acid group, it is converted into a substituent of the formula V, after hydrolyzed to a carboxylic group. Then an ion exchange membrane with excellent electrochemical and mechanical properties is prepared by the coupling of the substituent of the formula V, followed by crosslinking, by use of a publicly known method such as heating of the membrane.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17280379A JPS5695926A (en) | 1979-12-28 | 1979-12-28 | Preparation of improved cation exchange membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17280379A JPS5695926A (en) | 1979-12-28 | 1979-12-28 | Preparation of improved cation exchange membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5695926A true JPS5695926A (en) | 1981-08-03 |
Family
ID=15948652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17280379A Pending JPS5695926A (en) | 1979-12-28 | 1979-12-28 | Preparation of improved cation exchange membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5695926A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
WO1999045044A1 (en) * | 1998-03-06 | 1999-09-10 | Daikin Industries, Ltd. | Fluorochemical adhesive material and laminate made with the same |
US6740375B1 (en) | 1999-09-08 | 2004-05-25 | Daikin Industries, Ltd. | Fluorochemical adhesive material and laminate comprising the same |
-
1979
- 1979-12-28 JP JP17280379A patent/JPS5695926A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
WO1999045044A1 (en) * | 1998-03-06 | 1999-09-10 | Daikin Industries, Ltd. | Fluorochemical adhesive material and laminate made with the same |
US6680124B1 (en) | 1998-03-06 | 2004-01-20 | Daikin Industries Ltd. | Fluorochemical adhesive material and laminate made with the same |
US6740375B1 (en) | 1999-09-08 | 2004-05-25 | Daikin Industries, Ltd. | Fluorochemical adhesive material and laminate comprising the same |
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