IL42011A - Fabrication of porous macromolecular materials having an internal lining - Google Patents

Fabrication of porous macromolecular materials having an internal lining

Info

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
Application number
IL42011A
Other languages
Hebrew (he)
Other versions
IL42011A0 (en
Inventor
J Marchand
J Puig
Original Assignee
Commissariat Energie Atomique
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 Commissariat Energie Atomique filed Critical Commissariat Energie Atomique
Publication of IL42011A0 publication Critical patent/IL42011A0/en
Publication of IL42011A publication Critical patent/IL42011A/en

Links

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)
  • Graft Or Block Polymers (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (17)

What we claim is
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
IL42011A 1972-04-21 1973-04-11 Fabrication of porous macromolecular materials having an internal lining IL42011A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
CA995173A (en) 1976-08-17
JPS4922497A (en) 1974-02-27
GB1424046A (en) 1976-02-04
IL42011A0 (en) 1973-06-29
IT980868B (en) 1974-10-10
FR2181215A5 (en) 1973-11-30
DE2319101A1 (en) 1973-10-31

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