IL42011A - Fabrication of porous macromolecular materials having an internal lining - Google Patents
Fabrication of porous macromolecular materials having an internal liningInfo
- Publication number
- IL42011A IL42011A IL42011A IL4201173A IL42011A IL 42011 A IL42011 A IL 42011A IL 42011 A IL42011 A IL 42011A IL 4201173 A IL4201173 A IL 4201173A IL 42011 A IL42011 A IL 42011A
- Authority
- IL
- Israel
- Prior art keywords
- monomer
- polymer
- irradiation
- porous
- particles
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims 7
- 238000004519 manufacturing process Methods 0.000 title claims 2
- 238000000034 method Methods 0.000 claims 13
- 239000000178 monomer Substances 0.000 claims 8
- 229920000642 polymer Polymers 0.000 claims 8
- 239000002245 particle Substances 0.000 claims 7
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims 2
- 239000004417 polycarbonate Substances 0.000 claims 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 239000004642 Polyimide Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000004992 fission Effects 0.000 claims 1
- 239000012634 fragment Substances 0.000 claims 1
- 239000003014 ion exchange membrane Substances 0.000 claims 1
- 239000012528 membrane Substances 0.000 claims 1
- 229920000515 polycarbonate Polymers 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 229920001721 polyimide Polymers 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 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
- B01D67/0002—Organic membrane manufacture
- B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
- B01D67/0032—Organic membrane manufacture by inducing porosity into non porous precursor membranes by elimination of segments of the precursor, e.g. nucleation-track membranes, lithography or laser methods
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Graft Or Block Polymers (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Claims (17)
1. A method of fabrication of a porous macro-molecular material, wherein a polymer is subjected to irradiation with heavy nuclear particles, a monomer having at least one ethylene double bond is fixed chemically in the zones which are modified by irradiation and localized around the locus of passage of each particle and the pore structure is formed by means of a chemical attacking agent which is specific to the starting polymer „
2. A method according to claim 1, wherein irradiation of the polymer is carried out in the presence of the monomer to be grafted.
3. A method according to claim 2, wherein the polymer has previously been impregnated with the monomer to be grafted prior to irradiation. .
4. A method according to claim 2, wherein the monomer is in the state of vapor within the enclosure in which irradiation of the polymer is performed.
5. A method according to claim 1, wherein irradia-tion of the polymer is carried out in the absence of the monomer to be grafted, fixation of said monomer being carried out after the irradiation step.
6. A method according to any one of claims 1 to 5, wherein the fixed monomer is modified in a subsequent step. .
7. A method according to any one of claims 1 to 6, wherein the heavy particles are constituted by a-radiations.
8. A method according to claims 1 to 6, wherein the particles are produced by fission fragments.
9. A method according to claims 1 to 6, wherein the heavy particles are produced by particle accelerators. 42011 /2
10. A method according to Claims 1 to 6, wherein the particles are produced in a nuclear reactor by means of reactions eueh as (n, a).
11. A method according to any one of Claims 1 to 10, wherein the polymer is selected from the group constituted by the cellulose polymers, the polyesters, the polyolefins, the polyimides, the polycarbonates.
12. 2. A method according to any one of Claims 1 to 1 , wherein the monomer is selected from the group constituted by vinyl-2-pyridine, acrylic acid, acrylonitrile , styrene.
13. - A orous maeroaolecular material as prepared in accordance with any one of Claims 1 to 12.
14. A porous maeroffiolecular material according to Claim 15 being a ion exchange membrane.
15. 5. A porous macromolecular material according to Claim 14 being a selective semi-permeable membrane.
16. A method according to Claim 1 for the fabricatio of a porous macromolecular material, substantially as hereinbefore described with reference to the Examples.
17. A porous macromolecular material as prepared by the method according to Claim 1, substantially as hereinbefore described with reference to the Examples. PC:ma
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7214293A FR2181215A5 (en) | 1972-04-21 | 1972-04-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL42011A0 IL42011A0 (en) | 1973-06-29 |
| IL42011A true IL42011A (en) | 1976-12-31 |
Family
ID=9097341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL42011A IL42011A (en) | 1972-04-21 | 1973-04-11 | Fabrication of porous macromolecular materials having an internal lining |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS4922497A (en) |
| CA (1) | CA995173A (en) |
| DE (1) | DE2319101A1 (en) |
| FR (1) | FR2181215A5 (en) |
| GB (1) | GB1424046A (en) |
| IL (1) | IL42011A (en) |
| IT (1) | IT980868B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH618612A5 (en) * | 1975-12-31 | 1980-08-15 | Berthold Schilling | Dialysis membrane, in particular for haemodialysis, and process for production thereof |
| EP0150288A3 (en) * | 1984-01-16 | 1986-04-16 | KMS Fusion, Inc. | Hollow microspheres with wall through-openings |
| FR2597391B1 (en) | 1986-03-25 | 1989-02-24 | Univ Catholique Louvain | PROCESS FOR PERFORMING PERFORATIONS IN SOLID SHEET MATERIAL, IRRADIATION DEVICE FOR IMPLEMENTING THE PROCESS AND PERFORATED MATERIAL THUS OBTAINED |
| DE4305979C2 (en) * | 1992-03-21 | 1994-12-08 | Schwerionenforsch Gmbh | Chemical valve |
-
1972
- 1972-04-21 FR FR7214293A patent/FR2181215A5/fr not_active Expired
-
1973
- 1973-04-09 GB GB1695173A patent/GB1424046A/en not_active Expired
- 1973-04-11 IL IL42011A patent/IL42011A/en unknown
- 1973-04-16 DE DE2319101A patent/DE2319101A1/en active Pending
- 1973-04-18 IT IT68112/73A patent/IT980868B/en active
- 1973-04-21 JP JP48045648A patent/JPS4922497A/ja active Pending
- 1973-04-24 CA CA169,317A patent/CA995173A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA995173A (en) | 1976-08-17 |
| FR2181215A5 (en) | 1973-11-30 |
| IL42011A0 (en) | 1973-06-29 |
| GB1424046A (en) | 1976-02-04 |
| JPS4922497A (en) | 1974-02-27 |
| DE2319101A1 (en) | 1973-10-31 |
| IT980868B (en) | 1974-10-10 |
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