GB975031A - Ion permeable membranes - Google Patents
Ion permeable membranesInfo
- Publication number
- GB975031A GB975031A GB3255/61A GB325561A GB975031A GB 975031 A GB975031 A GB 975031A GB 3255/61 A GB3255/61 A GB 3255/61A GB 325561 A GB325561 A GB 325561A GB 975031 A GB975031 A GB 975031A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass
- styrene
- membrane
- polytetrafluoroethylene
- alternatively
- 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
Links
- 239000012528 membrane Substances 0.000 title abstract 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 8
- -1 polytetrafluoroethylene Polymers 0.000 abstract 6
- 239000011521 glass Substances 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 4
- 239000004342 Benzoyl peroxide Substances 0.000 abstract 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 abstract 3
- 239000004793 Polystyrene Substances 0.000 abstract 3
- 235000019400 benzoyl peroxide Nutrition 0.000 abstract 3
- 239000004744 fabric Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- 229920002223 polystyrene Polymers 0.000 abstract 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 3
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 3
- 239000000843 powder Substances 0.000 abstract 3
- 230000005855 radiation Effects 0.000 abstract 3
- VJOWMORERYNYON-UHFFFAOYSA-N 5-ethenyl-2-methylpyridine Chemical compound CC1=CC=C(C=C)C=N1 VJOWMORERYNYON-UHFFFAOYSA-N 0.000 abstract 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 abstract 2
- 239000003365 glass fiber Substances 0.000 abstract 2
- 239000003999 initiator Substances 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical group OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 2
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 abstract 1
- 239000004698 Polyethylene Substances 0.000 abstract 1
- 239000010425 asbestos Substances 0.000 abstract 1
- YOUGRGFIHBUKRS-UHFFFAOYSA-N benzyl(trimethyl)azanium Chemical group C[N+](C)(C)CC1=CC=CC=C1 YOUGRGFIHBUKRS-UHFFFAOYSA-N 0.000 abstract 1
- 238000003490 calendering Methods 0.000 abstract 1
- 239000000839 emulsion Substances 0.000 abstract 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 abstract 1
- 239000003014 ion exchange membrane Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 230000001678 irradiating effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 229920002493 poly(chlorotrifluoroethylene) Polymers 0.000 abstract 1
- 239000005023 polychlorotrifluoroethylene (PCTFE) polymer Substances 0.000 abstract 1
- 229920000573 polyethylene Polymers 0.000 abstract 1
- 230000000379 polymerizing effect Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 229910052895 riebeckite Inorganic materials 0.000 abstract 1
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
- C08J5/2275—Heterogeneous membranes
- C08J5/2281—Heterogeneous membranes fluorine containing heterogeneous membranes
-
- 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
- C08J5/225—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 containing fluorine
-
- 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
- C08J2327/12—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 fluorine 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
An ion permeable meebrane comprises a homogenous fusible film made from a polymer derived from an ethylenically unsaturated monomer, and reinforcing fibres. Ion exchange groups may then be introduced by further reaction. Exemplified methods of making the membrane are by graft polymerizing styrene, n-butyl methacrylate, 5-vinyl -2- picoline and 2-vinyl pyridine on to a glass-fibre supported film of polytetrafluoroethylene by a bulk method using gamma radiation or benzoyl peroxide as initiator. Alternatively an unsupported ion exchange membrane (compositions of polyethylene and polystyrene substituted with benzyl trimethyl ammonium groups of sulphonic acid groups) may be shredded, spread over a heated plate, a layer of woven glass cloth spread on top and optionally a further layer of shredded material, and the whole assembly pressed beneath another heated plate to form a fresh membrane. This technique is also applicable to a mixture of polytetrafluoroethylene and polystyrene sulphonic acid with non-woven glass fibres and to a mixture of polychlorotrifluoroethylene and poly-5-vinyl-2-picoline with asbestos fibres. Alternatively polytetrafluoroethylene powder may be grafted with styrene using radiation and benzoyl peroxide in bulk, by storing the powder in styrene without initiator, or in emulsion using radiation and pressed on to glass cloth or glass paper followed by further chemical reaction. Alternatively fluorocarbon rubber-"Viton A" (Registered Trade Mark)-may be mixed with polystyrene and dibutyl phthalate and the composition calendered on to glass cloth and thereafter further reacted. The membrane may also be made by irradiating polytrifluorochloroethylene powder, immersing in styrene containing benzoyl peroxide until grafting, takes place, then moulding the resulting polymer on to glass paper.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US561760A | 1960-02-01 | 1960-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB975031A true GB975031A (en) | 1964-11-11 |
Family
ID=21716790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3255/61A Expired GB975031A (en) | 1960-02-01 | 1961-01-27 | Ion permeable membranes |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1279797A (en) |
| GB (1) | GB975031A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2641539B1 (en) * | 1989-01-06 | 1992-10-30 | Morgane | PROCESS FOR THE MANUFACTURE OF IRRADIATION ION EXCHANGE MEMBRANES AND MEMBRANES THUS OBTAINED |
| US6780935B2 (en) * | 2000-02-15 | 2004-08-24 | Atofina Chemicals, Inc. | Fluoropolymer resins containing ionic or ionizable groups and products containing the same |
-
1961
- 1961-01-27 GB GB3255/61A patent/GB975031A/en not_active Expired
- 1961-02-01 FR FR851369D patent/FR1279797A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1279797A (en) | 1961-12-22 |
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