GB995321A - Method of polymerizing acrylonitrile - Google Patents
Method of polymerizing acrylonitrileInfo
- Publication number
- GB995321A GB995321A GB5874/63A GB587463A GB995321A GB 995321 A GB995321 A GB 995321A GB 5874/63 A GB5874/63 A GB 5874/63A GB 587463 A GB587463 A GB 587463A GB 995321 A GB995321 A GB 995321A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- acrylonitrile
- acids
- monomer
- sodium
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/42—Nitriles
- C08F20/44—Acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/36—Polymerisation in solid state
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Acrylonitrile is polymerized in dimethyl sulphoxide solution and, when the extent of polymerization is from 70-90%, unreacted monomer is evaporated from the solution while maintaining the solution in the form of a film or layer not more than 2 cm. thick, at a temperature of 20-60 DEG C. and a pressure of 30-500 mm. Hg. The monomer recovery is effected in an evaporator fitted with revolving discs and into which a gas, e.g. air, inert to the polymerizing solution, is continuously introduced. The acrylonitrile may be copolymerized with up to 15% of at least one other ethylenically unsaturated monomer of which methyl acrylate and sodium allyl sulphonate are exemplified. A number of other such suitable monomers are listed and include ethylenic hydrocarbons, carboxylic acids, amides, chlorides, acetates and sulphonic acids. Catalysts such as azobisisobutyronitrile and lauroyl peroxide, colouration inhibitors such as tin compounds, acids and sulphuric dioxide gas, and chain transfer agents such as dodecyl mercaptan and sodium b -styrene sulphonate may be used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP582362 | 1962-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB995321A true GB995321A (en) | 1965-06-16 |
Family
ID=11621778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5874/63A Expired GB995321A (en) | 1962-02-20 | 1963-02-13 | Method of polymerizing acrylonitrile |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1301519B (en) |
GB (1) | GB995321A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996002578A1 (en) * | 1993-05-06 | 1996-02-01 | Kenneth Wilkinson | Preparation of an acrylonitrile copolymer and its product |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE786885A (en) * | 1971-07-30 | 1973-01-29 | Basf Ag | PROCESS FOR REMOVING VAPORIZABLE CONSTITUENTS FROM POLYMER SOLUTIONS |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE588809A (en) * | 1958-02-06 |
-
1963
- 1963-02-13 GB GB5874/63A patent/GB995321A/en not_active Expired
- 1963-02-19 DE DET23499A patent/DE1301519B/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996002578A1 (en) * | 1993-05-06 | 1996-02-01 | Kenneth Wilkinson | Preparation of an acrylonitrile copolymer and its product |
Also Published As
Publication number | Publication date |
---|---|
DE1301519B (en) | 1969-08-21 |
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