JPS5586821A - Production of bipolar film - Google Patents

Production of bipolar film

Info

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
Application number
JP15863878A
Other languages
Japanese (ja)
Inventor
Kuniaki Takada
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP15863878A priority Critical patent/JPS5586821A/en
Publication of JPS5586821A publication Critical patent/JPS5586821A/en
Pending legal-status Critical Current

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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.
JP15863878A 1978-12-25 1978-12-25 Production of bipolar film Pending JPS5586821A (en)

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 (2)

* Cited by examiner, † Cited by third party
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 Manufacturing method of composite ion exchange membrane

Cited By (2)

* Cited by examiner, † Cited by third party
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 Manufacturing method of composite ion exchange membrane

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