JPS5624007A - Selective permeable membrane - Google Patents

Selective permeable membrane

Info

Publication number
JPS5624007A
JPS5624007A JP10049379A JP10049379A JPS5624007A JP S5624007 A JPS5624007 A JP S5624007A JP 10049379 A JP10049379 A JP 10049379A JP 10049379 A JP10049379 A JP 10049379A JP S5624007 A JPS5624007 A JP S5624007A
Authority
JP
Japan
Prior art keywords
unit
membrane
amideimide
amide
permeable 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
JP10049379A
Other languages
Japanese (ja)
Inventor
Ken Noda
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.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial 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 Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP10049379A priority Critical patent/JPS5624007A/en
Publication of JPS5624007A publication Critical patent/JPS5624007A/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
    • B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
    • B01D71/62—Polycondensates having nitrogen-containing heterocyclic rings in the main chain
    • B01D71/64—Polyimides; Polyamide-imides; Polyester-imides; Polyamide acids or similar polyimide precursors
    • B01D71/641—Polyamide-imides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To provide a permeable membrane with an improved water permeating rate and an inhibiting ratio, by using a polyamidemide containing a specific amideimide unit and a specific amide unit having a hydrophilic group introduced therein as a repeating unit. CONSTITUTION:A polyamideimide having mainly an amideimide unit shown by formula I and an amide unit shown by formula II(wherein A<1>, A<2> are trivalent aromatic group, R<1> is divalent aromatic group, -SO3M is -SO3H, metal salts or amine base salts thereof) as a repeating unit is prepared. In this case, it is desirable to include said amide unit in an amount of 5-70mol% against a total amount of the amideimide unit and the amide unit. This polyamideimide and an appropriate swelling agent are dissolved in a solvent to from a uniform dope and this dope is coated on a support substrate so as to from a membrane and, thereby, a selective permeable membrane is formed. Because this membrane has a high inhibiting ratio and a water permeating rate, it can be appropriately used in the membrane separation treatment of a wide range of waters to be treated.
JP10049379A 1979-08-06 1979-08-06 Selective permeable membrane Pending JPS5624007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10049379A JPS5624007A (en) 1979-08-06 1979-08-06 Selective permeable membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10049379A JPS5624007A (en) 1979-08-06 1979-08-06 Selective permeable membrane

Publications (1)

Publication Number Publication Date
JPS5624007A true JPS5624007A (en) 1981-03-07

Family

ID=14275447

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10049379A Pending JPS5624007A (en) 1979-08-06 1979-08-06 Selective permeable membrane

Country Status (1)

Country Link
JP (1) JPS5624007A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105212A (en) * 1980-07-25 1982-06-30 Akzo Nv Manufacture of overfiltration membrane consisting of polyamide and membrane formed through said method
JPS637803A (en) * 1986-06-30 1988-01-13 Agency Of Ind Science & Technol Separation membrane for water/organic substance
FR2636635A1 (en) * 1988-09-21 1990-03-23 Rhone Poulenc Sa POLYAMIDE-IMIDE SOLUTIONS AND PROCESS FOR OBTAINING THEM
US5554292A (en) * 1991-09-03 1996-09-10 Daicel Chemical Industries, Ltd. Permselective membrane of polyacrylonitrile copolymer and process for producing the same
WO1997042253A1 (en) * 1996-05-07 1997-11-13 Commissariat A L'energie Atomique Sulphonated polyimides, membranes and fuel cell
CN114616046A (en) * 2019-10-31 2022-06-10 东丽株式会社 Composite semipermeable membrane

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105212A (en) * 1980-07-25 1982-06-30 Akzo Nv Manufacture of overfiltration membrane consisting of polyamide and membrane formed through said method
JPH046412B2 (en) * 1980-07-25 1992-02-05 Akzo Nv
JPS637803A (en) * 1986-06-30 1988-01-13 Agency Of Ind Science & Technol Separation membrane for water/organic substance
JPH0427893B2 (en) * 1986-06-30 1992-05-13 Kogyo Gijutsuin
FR2636635A1 (en) * 1988-09-21 1990-03-23 Rhone Poulenc Sa POLYAMIDE-IMIDE SOLUTIONS AND PROCESS FOR OBTAINING THEM
US5554292A (en) * 1991-09-03 1996-09-10 Daicel Chemical Industries, Ltd. Permselective membrane of polyacrylonitrile copolymer and process for producing the same
WO1997042253A1 (en) * 1996-05-07 1997-11-13 Commissariat A L'energie Atomique Sulphonated polyimides, membranes and fuel cell
CN114616046A (en) * 2019-10-31 2022-06-10 东丽株式会社 Composite semipermeable membrane

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