GB916551A - Continuous polymerization of n-vinyl heterocyclic monomers - Google Patents
Continuous polymerization of n-vinyl heterocyclic monomersInfo
- Publication number
- GB916551A GB916551A GB889261A GB889261A GB916551A GB 916551 A GB916551 A GB 916551A GB 889261 A GB889261 A GB 889261A GB 889261 A GB889261 A GB 889261A GB 916551 A GB916551 A GB 916551A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vinyl
- polymerization
- isopropanol
- aqueous
- pyrrolidone
- 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
- C08F26/00—Homopolymers and 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 single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F26/06—Homopolymers and 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 single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
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
In a continuous process for the polymerization in aqueous media of N-vinyl heterocyclic monomers, cross linking and gelation are inhibited by the use of one or more polymerization modifiers chosen from isopropanol, thioglycolic acid, dimethyl formamide, ethanolamine, methyl ethyl ketone, trichloracetic acid and 2-mercapto ethanol. Heterocyclic monomers specified are N-vinyl lactam, N-vinyl caprolactam, N-vinyl-3-morpholinone, N-vinyl pyrrolidone, N-vinyl piperidone and N-vinyl-5-methyl pyrrolidone. These may be copolymerized with acrylic acid and its homologs, acrylic esters, methacrylonitrile, vinyl methyl ketone, vinyl chloride, styrene, or vinyl acetate. The polymerization may be initiated by azo catalysts such as azobisisobutyronitrile, peroxygen catalysts, such as hydrogen peroxide and potassium persulphate, or by use of high energy radiation. A polymerization vehicle may be prepared by mixing water with from 0,1 to 95% by weight of the polymerization modifier. To this vehicle may be added 5 to 50% by weight of the N-vinyl heterocyclic monomer according to the amount of any copolymerizable ethylenic monomer present. The polymerization mixture may be continuously passed through the reaction chamber, where it is mechanically stirred and maintained at a temperature of 25 DEG to 100 DEG C. The polymer may be recovered by spray drying or solvent stripping. In the examples N-vinyl pyrrolidone is polymerized in aqueous medium in the presence of (1) isopropanol, aqueous ammonium hydroxide and aqueous hydrogen peroxide; (2) isopropanol and azobisisobutyronitrile and (3) thioglycolic acid and X-rays.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL261943D NL261943A (en) | 1961-03-10 | ||
| DED35625A DE1157397B (en) | 1961-03-10 | 1961-03-10 | Process for the polymerization of N-vinyl lactams |
| GB889261A GB916551A (en) | 1961-03-10 | 1961-03-10 | Continuous polymerization of n-vinyl heterocyclic monomers |
| FR855457A FR1291612A (en) | 1961-03-10 | 1961-03-13 | Continuous polymerization of heterocyclic n-vinyl monomers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB889261A GB916551A (en) | 1961-03-10 | 1961-03-10 | Continuous polymerization of n-vinyl heterocyclic monomers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB916551A true GB916551A (en) | 1963-01-23 |
Family
ID=9861307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB889261A Expired GB916551A (en) | 1961-03-10 | 1961-03-10 | Continuous polymerization of n-vinyl heterocyclic monomers |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB916551A (en) |
| NL (1) | NL261943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020118780A1 (en) * | 2018-12-14 | 2020-06-18 | 中国科学院广州能源研究所 | Hydrate kinetics inhibitor |
-
0
- NL NL261943D patent/NL261943A/xx unknown
-
1961
- 1961-03-10 GB GB889261A patent/GB916551A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020118780A1 (en) * | 2018-12-14 | 2020-06-18 | 中国科学院广州能源研究所 | Hydrate kinetics inhibitor |
| US11919978B2 (en) | 2018-12-14 | 2024-03-05 | Guangzhou Institute Of Energy Conversion, Chinese Academy Of Sciences | Hydrate kinetics inhibitor |
Also Published As
| Publication number | Publication date |
|---|---|
| NL261943A (en) |
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