GB778001A - Process for the production of permselective membranes and the membranes thus produced - Google Patents

Process for the production of permselective membranes and the membranes thus produced

Info

Publication number
GB778001A
GB778001A GB11581/55A GB1158155A GB778001A GB 778001 A GB778001 A GB 778001A GB 11581/55 A GB11581/55 A GB 11581/55A GB 1158155 A GB1158155 A GB 1158155A GB 778001 A GB778001 A GB 778001A
Authority
GB
United Kingdom
Prior art keywords
film
groups
organic
tertiary
membranes
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.)
Expired
Application number
GB11581/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Original Assignee
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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 Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO filed Critical Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Publication of GB778001A publication Critical patent/GB778001A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2218—Synthetic macromolecular compounds
    • C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
    • C08J5/2243—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds obtained by introduction of active groups capable of ion-exchange into compounds of the type C08J5/2231
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

A film of an organic, polymeric, hydrophobic substance which is of high resistivity and has a length and a breadth which are both at least 100 times the thickness thereof is converted into a permselective membrane by decreasing the electrical resistivity of the film to less than 500 ohm per cm.2, as measured in equilibrium with a 0.1 N aqueous sodium chloride solution, by incorporating in the film ionic groups having a dissociation constant of at least 10-5 in a quantity of at least 0.2 milli-equivalent per gram of dry substance. The film may be of polyvinyl chloride, a vinyl chloride-vinylidene chloride copolymer, polystyrene or polyethylene. The chlorine atoms of vinyl chloride polymers and copolymers may be replaced by quaternary ammonium groups, guanidinium groups or tertiary sulphonium groups by reaction with tertiary amines, guanidines or organic disulphides; polystyrene may be sulphonated or may be chloromethylated and then treated with trimethylamine. Specification 747,948 is referred to.ALSO:A film of chlorinated rubber or rubber hydrochloride which has a length and a breadth which are both at least 100 times the thickness thereof is converted into a permselective membrane by decreasing the electrical resistivity of the film to less than 500 ohm per cm2, as measured in equilibrium with a 0,1 N aqueous sodium chloride solution, by incorporating in the film ionic groups having a dissociation constant of at least 10-5 in a quantity of at least 0,2 milli-equivalent per gram of dry substance. The ionic groups may be introduced by replacing chlorine atoms by quaternary ammonium, guanidinium, tertiary sulphonium or sulphonic groups by reacting the film with tertiary amines, guanidines, organic disulphides, concentrated sulphuric acid or chlorosulphonic acid. Specification 747,948 [Group IV(a)] is referred to.
GB11581/55A 1954-04-21 1955-04-21 Process for the production of permselective membranes and the membranes thus produced Expired GB778001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL778001X 1954-04-21

Publications (1)

Publication Number Publication Date
GB778001A true GB778001A (en) 1957-07-03

Family

ID=19830033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11581/55A Expired GB778001A (en) 1954-04-21 1955-04-21 Process for the production of permselective membranes and the membranes thus produced

Country Status (1)

Country Link
GB (1) GB778001A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6242127B1 (en) 1999-08-06 2001-06-05 Microporous Products, L.P. Polyethylene separator for energy storage cell
WO2003098205A1 (en) * 2002-05-21 2003-11-27 Rhocraft Research And Development Ltd. Ion exchange membranes and dissolved gas sensors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6242127B1 (en) 1999-08-06 2001-06-05 Microporous Products, L.P. Polyethylene separator for energy storage cell
WO2003098205A1 (en) * 2002-05-21 2003-11-27 Rhocraft Research And Development Ltd. Ion exchange membranes and dissolved gas sensors

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