JPS5695925A - Method of increasing ion exchange capacity of cation exchange membrane - Google Patents

Method of increasing ion exchange capacity of cation exchange membrane

Info

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
Application number
JP17260579A
Other languages
Japanese (ja)
Other versions
JPS615491B2 (en
Inventor
Toru Kiyota
Kenji Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Priority to JP17260579A priority Critical patent/JPS5695925A/en
Publication of JPS5695925A publication Critical patent/JPS5695925A/en
Publication of JPS615491B2 publication Critical patent/JPS615491B2/ja
Granted legal-status Critical Current

Links

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  • 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
JP17260579A 1979-12-29 1979-12-29 Method of increasing ion exchange capacity of cation exchange membrane Granted JPS5695925A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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