JPS5637006A - Polyacrylonitrile semipermeable membrane and its manufacture - Google Patents

Polyacrylonitrile semipermeable membrane and its manufacture

Info

Publication number
JPS5637006A
JPS5637006A JP11271379A JP11271379A JPS5637006A JP S5637006 A JPS5637006 A JP S5637006A JP 11271379 A JP11271379 A JP 11271379A JP 11271379 A JP11271379 A JP 11271379A JP S5637006 A JPS5637006 A JP S5637006A
Authority
JP
Japan
Prior art keywords
acrylonitrile
semipermeable membrane
copolymer
manufacture
polyacrylonitrile
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
JP11271379A
Other languages
Japanese (ja)
Inventor
Hiroshi Terada
Haruhiko Yoshida
Akio Hironaka
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP11271379A priority Critical patent/JPS5637006A/en
Publication of JPS5637006A publication Critical patent/JPS5637006A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
    • B01D71/421—Polyacrylonitrile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

PURPOSE: To manufacture a better performance and highly durable semipermeable membrane of poly acrylonitrile copolymer, having a liquid imperviousness or perviousness higher than a definite value, from an acrylonitrile copolymer having specific reduction viscosity and specific strong acid groups.
CONSTITUTION: The polyacrylonitrile copolymer semipermeable membrane, having an asymmetric structure with a dense layer on its surface, a liquid imperviousness of 50% or more (measured by a 0.003wt% sodium dodecylbenzene sulfonate aqueous solution) and a liquid perviousness of 1.5l/m2.hr.atm or more, is manufactured from a copolymer containing 60mol% or more acrylonitrile as the main component, and 20W0mol% an unsaturated compound polymerizable with acrylonitrile as the subcomponent, with sulfonic acid groups, having a reduction viscosity of 1.2W3.4 and a strong acid group of 8×10-5 equivalents/g or more. The membrane thus obtained has better performance and high durability.
COPYRIGHT: (C)1981,JPO&Japio
JP11271379A 1979-09-03 1979-09-03 Polyacrylonitrile semipermeable membrane and its manufacture Pending JPS5637006A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11271379A JPS5637006A (en) 1979-09-03 1979-09-03 Polyacrylonitrile semipermeable membrane and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11271379A JPS5637006A (en) 1979-09-03 1979-09-03 Polyacrylonitrile semipermeable membrane and its manufacture

Publications (1)

Publication Number Publication Date
JPS5637006A true JPS5637006A (en) 1981-04-10

Family

ID=14593636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11271379A Pending JPS5637006A (en) 1979-09-03 1979-09-03 Polyacrylonitrile semipermeable membrane and its manufacture

Country Status (1)

Country Link
JP (1) JPS5637006A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644004A (en) * 1979-09-19 1981-04-23 Mitsubishi Rayon Co Ltd Polyacrylonitrile base semipermeable membrane and its production

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415478A (en) * 1978-06-16 1979-02-05 Mitsubishi Rayon Co Ltd Method of producing dry sime-permeable membrane
JPS5434416A (en) * 1977-08-15 1979-03-13 Nippon Zeon Co Ltd Hollow fiber and its production

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434416A (en) * 1977-08-15 1979-03-13 Nippon Zeon Co Ltd Hollow fiber and its production
JPS5415478A (en) * 1978-06-16 1979-02-05 Mitsubishi Rayon Co Ltd Method of producing dry sime-permeable membrane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644004A (en) * 1979-09-19 1981-04-23 Mitsubishi Rayon Co Ltd Polyacrylonitrile base semipermeable membrane and its production

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