JPS54127873A - Semipermeable membrane and its manufacture - Google Patents
Semipermeable membrane and its manufactureInfo
- Publication number
- JPS54127873A JPS54127873A JP3578678A JP3578678A JPS54127873A JP S54127873 A JPS54127873 A JP S54127873A JP 3578678 A JP3578678 A JP 3578678A JP 3578678 A JP3578678 A JP 3578678A JP S54127873 A JPS54127873 A JP S54127873A
- Authority
- JP
- Japan
- Prior art keywords
- cross
- polymer
- membranous
- linking
- linking agent
- 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 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 229920000642 polymer Polymers 0.000 abstract 4
- 239000003431 cross linking reagent Substances 0.000 abstract 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000004132 cross linking Methods 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000007598 dipping method Methods 0.000 abstract 1
- 125000000524 functional group Chemical group 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0093—Chemical modification
- B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
-
- 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
- B01D71/52—Polyethers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
-
- 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
- B01D71/52—Polyethers
- B01D71/522—Aromatic polyethers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polyethers (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
PURPOSE:To manufactre semipermeable membrane which is excellent in semipermeability, contracting resistance, hydrolysis resistance, etc., by cross-linking a membranous aminoalcohol-modified epihalohydrin polymer by contacting it with a cross-linking agent with more than two functional groups capable of reacting with the hydroxyl groups of the polymer. CONSTITUTION:A membranous aminoalcohol-modified epihalohydrin polymer is dipped in a reaction bath containing a cross-linking agent with more than two isocyanate groups, e.g., TDI, EDI, etc., a dibasic carboxylic acid, and a solvent, e.g., a HC series solvent, ether, etc. In this case, the preferred concentration of the cross-linking agent is 0.1 to 2.0 % by weight, and also the preferred dipping time is 30 sec to 30 min. The membranous polymer is taken out of the reaction bath, dried, and then kept at 50 to 150 deg.C for the completion of cross-linking. The membrane thus obtained obviates the need for storage in the wet state and also has excellent removability for salts, high molecular compounds, etc., in water or other liquids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3578678A JPS54127873A (en) | 1978-03-27 | 1978-03-27 | Semipermeable membrane and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3578678A JPS54127873A (en) | 1978-03-27 | 1978-03-27 | Semipermeable membrane and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54127873A true JPS54127873A (en) | 1979-10-04 |
Family
ID=12451582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3578678A Pending JPS54127873A (en) | 1978-03-27 | 1978-03-27 | Semipermeable membrane and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54127873A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240486A (en) * | 1975-09-22 | 1977-03-29 | Uop Inc | Semipermeable membrane and its manufacture |
-
1978
- 1978-03-27 JP JP3578678A patent/JPS54127873A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240486A (en) * | 1975-09-22 | 1977-03-29 | Uop Inc | Semipermeable membrane and its manufacture |
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