GB945218A - Process for the polymerisation of ªÏ-lactams - Google Patents

Process for the polymerisation of ªÏ-lactams

Info

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
Application number
GB1887962A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB945218A publication Critical patent/GB945218A/en
Expired legal-status Critical Current

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.
GB1887962A 1961-05-24 1962-05-16 Process for the polymerisation of ªÏ-lactams Expired GB945218A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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
NL278728A (en)
DE1239474B (en) 1967-04-27

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