JPS5791706A - Composite semipermeable membrane and method for producing the same - Google Patents
Composite semipermeable membrane and method for producing the sameInfo
- Publication number
- JPS5791706A JPS5791706A JP16605780A JP16605780A JPS5791706A JP S5791706 A JPS5791706 A JP S5791706A JP 16605780 A JP16605780 A JP 16605780A JP 16605780 A JP16605780 A JP 16605780A JP S5791706 A JPS5791706 A JP S5791706A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- solution
- polyether amine
- dmf
- hexane
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
PURPOSE: To obtain a composite membrane having an excellent selectivity for separation and a high water permeability by a method wherein an ultra thin film, obtained by cross-linking polymerization of a specified polyether amine and an amino compound, and a porous material obtained by making a polyether amine water-insoluble are supported on a porous substrate.
CONSTITUTION: A solution of epichlorohydrin in N,N-dimethylformamide (DMF) is added to a DMF solution of ethylenediamine, and the mixture is stirred to obtain a water-soluble ethylenediamine-modified polyether amine. An aqueous solution containing the polyether amine, piperazine and NH4(OH)2 is coated uniformly on a substrate made of a polysulfone, and the substrate is immersed in an n-hexane solution of isophthaloyl chloride. The substrate is taken out from the solution of isophthaloyl chloride and, after n-hexane adhered to the substrate is evaporated off, the substrate is heat-treated.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16605780A JPS5791706A (en) | 1980-11-26 | 1980-11-26 | Composite semipermeable membrane and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16605780A JPS5791706A (en) | 1980-11-26 | 1980-11-26 | Composite semipermeable membrane and method for producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5791706A true JPS5791706A (en) | 1982-06-08 |
Family
ID=15824162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16605780A Pending JPS5791706A (en) | 1980-11-26 | 1980-11-26 | Composite semipermeable membrane and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5791706A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535010A (en) * | 1982-10-18 | 1985-08-13 | Pharmacia Ab | Method of forming polymeric layers |
JPS6227022A (en) * | 1985-07-29 | 1987-02-05 | Teijin Ltd | Stabilizing method for membrane |
-
1980
- 1980-11-26 JP JP16605780A patent/JPS5791706A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535010A (en) * | 1982-10-18 | 1985-08-13 | Pharmacia Ab | Method of forming polymeric layers |
JPS6227022A (en) * | 1985-07-29 | 1987-02-05 | Teijin Ltd | Stabilizing method for membrane |
JPH0378128B2 (en) * | 1985-07-29 | 1991-12-12 | Teijin Ltd |
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