JPS5624007A - Selective permeable membrane - Google Patents
Selective permeable membraneInfo
- 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
Links
- 239000012528 membrane Substances 0.000 title abstract 6
- 150000001408 amides Chemical group 0.000 abstract 4
- 239000004962 Polyamide-imide Substances 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 230000002401 inhibitory effect Effects 0.000 abstract 2
- 229920002312 polyamide-imide Polymers 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910006069 SO3H Inorganic materials 0.000 abstract 1
- 150000001412 amines Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- 239000003643 water by type Substances 0.000 abstract 1
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)
- Separation Using Semi-Permeable Membranes (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (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.
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)
| 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 |
-
1979
- 1979-08-06 JP JP10049379A patent/JPS5624007A/en active Pending
Cited By (7)
| 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 |
| US12318738B2 (en) | 2019-10-31 | 2025-06-03 | Toray Industries, Inc. | Composite semi-permeable membrane |
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