JPS5695926A - Preparation of improved cation exchange membrane - Google Patents

Preparation of improved cation exchange membrane

Info

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
Application number
JP17280379A
Other languages
Japanese (ja)
Inventor
Kenji Takahashi
Toru Kiyota
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 JP17280379A priority Critical patent/JPS5695926A/en
Publication of JPS5695926A publication Critical patent/JPS5695926A/en
Pending legal-status Critical Current

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  • 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
JP17280379A 1979-12-28 1979-12-28 Preparation of improved cation exchange membrane Pending JPS5695926A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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