JPS644626A - Preparation of porous polyethylene cation-exchange membrane - Google Patents

Preparation of porous polyethylene cation-exchange membrane

Info

Publication number
JPS644626A
JPS644626A JP62159948A JP15994887A JPS644626A JP S644626 A JPS644626 A JP S644626A JP 62159948 A JP62159948 A JP 62159948A JP 15994887 A JP15994887 A JP 15994887A JP S644626 A JPS644626 A JP S644626A
Authority
JP
Japan
Prior art keywords
membrane
cation
porous
porous polyethylene
exchange
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
JP62159948A
Other languages
Japanese (ja)
Inventor
Masahiro Henmi
Takashi Kawai
Toshio Yoshioka
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP62159948A priority Critical patent/JPS644626A/en
Publication of JPS644626A publication Critical patent/JPS644626A/en
Pending legal-status Critical Current

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  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE:To prepare a porous polyethylene cation-exchange membrane, which is excellent in cation-exchange ability and useful for water treatment, metal recovery and other purposes, in a high operation efficiency, by treating a porous polyethylene membrane with conc. sulfuric acid and a formaldehyde source. CONSTITUTION:A porous polyethylene cation-exchange membrane is prepared by treating a porous polyethylene membrane in the form of a plain or hollow- thread membrane with conc. sulfuric acid and a formaldehyde source (e.g., formalin, paraformaldehyde, etc.) to introduce sulfonic acid groups into the porous membrane. This treatment makes it possible to introduces sulfonic acid groups thoroughly entirely over the surface of the membrane and the surface of its porous parts in a high rate of reaction and thereby provide the membrane with an excellent cation-exchange ability. In the course of the treatment, some of the main chains of polyethylene are mutually crosslinked, whereby the membrane can be controlled from contraction, its shape retentivity can be improved, and its transmission capacity can be controlled freely by controlling the degree of crosslinking.
JP62159948A 1987-06-26 1987-06-26 Preparation of porous polyethylene cation-exchange membrane Pending JPS644626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62159948A JPS644626A (en) 1987-06-26 1987-06-26 Preparation of porous polyethylene cation-exchange membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62159948A JPS644626A (en) 1987-06-26 1987-06-26 Preparation of porous polyethylene cation-exchange membrane

Publications (1)

Publication Number Publication Date
JPS644626A true JPS644626A (en) 1989-01-09

Family

ID=15704656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62159948A Pending JPS644626A (en) 1987-06-26 1987-06-26 Preparation of porous polyethylene cation-exchange membrane

Country Status (1)

Country Link
JP (1) JPS644626A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007044353A2 (en) * 2005-10-04 2007-04-19 Ballard Power Systems Inc. Methods for making sulfonated non-aromatic polymer electrolyte membranes
JP2007224300A (en) * 2006-02-23 2007-09-06 Samsung Sdi Co Ltd Polymer membrane, method of manufacturing the same and fuel cell
JP2010266213A (en) * 2009-05-12 2010-11-25 Nippon Telegr & Teleph Corp <Ntt> Toluene-detecting agent, toluene-detecting element, and toluene measurement method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007044353A2 (en) * 2005-10-04 2007-04-19 Ballard Power Systems Inc. Methods for making sulfonated non-aromatic polymer electrolyte membranes
WO2007044353A3 (en) * 2005-10-04 2007-06-21 Ballard Power Systems Methods for making sulfonated non-aromatic polymer electrolyte membranes
JP2007224300A (en) * 2006-02-23 2007-09-06 Samsung Sdi Co Ltd Polymer membrane, method of manufacturing the same and fuel cell
JP2010266213A (en) * 2009-05-12 2010-11-25 Nippon Telegr & Teleph Corp <Ntt> Toluene-detecting agent, toluene-detecting element, and toluene measurement method

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