GB945218A - Process for the polymerisation of ªÏ-lactams - Google Patents
Process for the polymerisation of ªÏ-lactamsInfo
- Publication number
- GB945218A GB945218A GB1887962A GB1887962A GB945218A GB 945218 A GB945218 A GB 945218A GB 1887962 A GB1887962 A GB 1887962A GB 1887962 A GB1887962 A GB 1887962A GB 945218 A GB945218 A GB 945218A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbonate
- ester
- diethyl
- polymerized
- acid
- 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
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
- C08G69/18—Anionic polymerisation
- C08G69/20—Anionic polymerisation characterised by the catalysts used
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyamides (AREA)
Abstract
An o -lactam containing 5 or more ring atoms is polymerized in the presence of an alkaline catalyst and in the simultaneous presence of an ester, semi-ester or mixed ester salt of carbonic acid, a halogen carbonic acid ester or a diester of pyrocarbonic acid as an activator. Specified lactams are e -caprolactam, pyrrolidone, piperidone and o -oenantholactam. Conventional alkaline catalysts are specified. Preferred activators are dimethyl, diethyl glycol, and propylene glycol carbonate, the monoethyl and monomethyl esters of carbonic acid and the sodium and potassium salts thereof, dimethyl, diethyl, diphenyl, and dibenzyl carbonate and the methyl and ethyl esters of chloroformic acid. In Examples (1) to (3), (5) and (6) e -caprolactam is polymerized in the presence of sodium methylate and: (1) diethyl carbonate; (2) glycol carbonate; (3) pyrocatechin carbonate; (5) the ethyl ester of chloroformic acid and (6) propylene glycol carbonate whilst in example (7) pyrrolidone is polymerized in the presence of sodium methylate and diethyl carbonate. Specifications 842,576, 872,328, 900,150 and 900,151 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1961F0033989 DE1239474B (en) | 1961-05-24 | 1961-05-24 | Process for the polymerization of omega-lactams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB945218A true GB945218A (en) | 1963-12-23 |
Family
ID=7095355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1887962A Expired GB945218A (en) | 1961-05-24 | 1962-05-16 | Process for the polymerisation of ªÏ-lactams |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1239474B (en) |
GB (1) | GB945218A (en) |
NL (1) | NL278728A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2637010A1 (en) * | 1976-08-17 | 1978-02-23 | Bayer Ag | ACTIVATED ANIONIC POLYMERIZATION |
US4614792A (en) * | 1984-06-09 | 1986-09-30 | Stamicarbon B.V. | Anionic polymerization of lactam with alkaline earth metal compound catalyst, lactam compound activator and ester compound |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4109246A1 (en) * | 1991-03-21 | 1992-09-24 | Henkel Kgaa | METHOD FOR THE PRODUCTION OF SIMPLY UNSATURATED FATTY ACIDS OR THEIR DERIVATIVES |
-
0
- NL NL278728D patent/NL278728A/xx unknown
-
1961
- 1961-05-24 DE DE1961F0033989 patent/DE1239474B/en active Pending
-
1962
- 1962-05-16 GB GB1887962A patent/GB945218A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2637010A1 (en) * | 1976-08-17 | 1978-02-23 | Bayer Ag | ACTIVATED ANIONIC POLYMERIZATION |
US4614792A (en) * | 1984-06-09 | 1986-09-30 | Stamicarbon B.V. | Anionic polymerization of lactam with alkaline earth metal compound catalyst, lactam compound activator and ester compound |
Also Published As
Publication number | Publication date |
---|---|
DE1239474B (en) | 1967-04-27 |
NL278728A (en) |
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