GB1138793A - Polymerisation of beta-lactones - Google Patents

Polymerisation of beta-lactones

Info

Publication number
GB1138793A
GB1138793A GB4330367A GB4330367A GB1138793A GB 1138793 A GB1138793 A GB 1138793A GB 4330367 A GB4330367 A GB 4330367A GB 4330367 A GB4330367 A GB 4330367A GB 1138793 A GB1138793 A GB 1138793A
Authority
GB
United Kingdom
Prior art keywords
beta
alkali metal
molecular weight
lactones
diluent
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
GB4330367A
Inventor
Dario Paolo Curotti
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB4330367A priority Critical patent/GB1138793A/en
Priority to NL6813398A priority patent/NL6813398A/xx
Publication of GB1138793A publication Critical patent/GB1138793A/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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/78—Preparation processes
    • C08G63/82—Preparation processes characterised by the catalyst used
    • C08G63/823—Preparation processes characterised by the catalyst used for the preparation of polylactones or polylactides

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)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1,138,793. Polymerizing beta - lactones. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 22 Sept., 1967, No. 43303/67. Heading C3R. Polyesters are made by polymerizing (preferably at 0‹ to 150‹ C.) one or more beta-lactones, at least 50 mole per cent being pivalactone, in a liquid hydrocarbon diluent having a boiling point of below 300‹ C. and in the presence of a solid carboxylate anion-containing initiator at least 80% by weight of which has a particle size of not more than 200 microns but larger than 5 microns. The initiator is substantially insoluble in the diluent, is free from active hydrogen atoms and is either (a) a preformed betaine having a molecular weight below 30,000 and in which the cation may be, e.g. ammonium, pyridinium, morpholinium, phosphonium, arsonium, stibonium or sulphonium, or (b) a " living " prepolymer having a molecular weight of 200 to 30,000 and which has been obtained by reacting a beta-lactone with a nucleophilic agent in a molar ratio of between 20 : 1 and 1 : 40, suitable initiators being phosphines, stibines, arsines, amines, sulphides, sulphoxides, an alkali metal salt, an alkali metal phenolate, thiophenolate, alcoholate or mercaptide, an alkali metal alkyl or aryl, a quaternary phosphonium, stibonium, arsonium, ammonium salt or a tertiary sulphonium compound. Preferably the " living " prepolymers are prepared in an inert fluid diluent and in the presence of a surface-active substance having a hydrocarbon chain with a molecular weight of at least 200 and having one or more hydroxyl, amino, carbonamido or imido groups.
GB4330367A 1967-09-22 1967-09-22 Polymerisation of beta-lactones Expired GB1138793A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4330367A GB1138793A (en) 1967-09-22 1967-09-22 Polymerisation of beta-lactones
NL6813398A NL6813398A (en) 1967-09-22 1968-09-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4330367A GB1138793A (en) 1967-09-22 1967-09-22 Polymerisation of beta-lactones

Publications (1)

Publication Number Publication Date
GB1138793A true GB1138793A (en) 1969-01-01

Family

ID=10428168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4330367A Expired GB1138793A (en) 1967-09-22 1967-09-22 Polymerisation of beta-lactones

Country Status (2)

Country Link
GB (1) GB1138793A (en)
NL (1) NL6813398A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216312A1 (en) * 1973-02-06 1974-08-30 Eastman Kodak Co
EP2454017B1 (en) * 2009-07-16 2015-03-18 Elantas GmbH Reactive systems

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2216312A1 (en) * 1973-02-06 1974-08-30 Eastman Kodak Co
EP2454017B1 (en) * 2009-07-16 2015-03-18 Elantas GmbH Reactive systems
US9056927B2 (en) 2009-07-16 2015-06-16 Elantas Gmbh Reactive systems
RU2562240C2 (en) * 2009-07-16 2015-09-10 Элантас Гмбх Reactive systems

Also Published As

Publication number Publication date
NL6813398A (en) 1969-03-25

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