GB1142538A - Polymerisation of pivalolactone - Google Patents

Polymerisation of pivalolactone

Info

Publication number
GB1142538A
GB1142538A GB5120167A GB5120167A GB1142538A GB 1142538 A GB1142538 A GB 1142538A GB 5120167 A GB5120167 A GB 5120167A GB 5120167 A GB5120167 A GB 5120167A GB 1142538 A GB1142538 A GB 1142538A
Authority
GB
United Kingdom
Prior art keywords
alpha
pivalolactone
propiolactone
beta
chloride
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
GB5120167A
Inventor
Arie Klootwijk
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 GB5120167A priority Critical patent/GB1142538A/en
Publication of GB1142538A publication Critical patent/GB1142538A/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)
  • Polyesters Or Polycarbonates (AREA)

Abstract

1,142,538. Polymerizing lactones. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 10 Nov., 1967, No. 51201/67. Heading C3R. Pivalolactone is polymerized in the presence of a cationic initiator which is a complex of a Lewis acid and a trihydrocarbylmethyl chloride. Specified complexes are those of the halides of Zn, Cd, Hg, B, Al, Ge, In, Ti, Sn, Pb, P, V, Sb, Bi, As, Fe, Co or Ni and triphenylmethyl chloride. Up to 50 mol per cent of the pivalolactone may be replaced by beta-propiolactone, alpha, alpha-diethyl-beta-propiolactone or alpha - methyl - alpha - ethyl - beta - propiolactone. Polymerization is effected at - 50‹ to +300‹ C. by a bulk process or in a hydrocarbon diluent.
GB5120167A 1967-11-10 1967-11-10 Polymerisation of pivalolactone Expired GB1142538A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5120167A GB1142538A (en) 1967-11-10 1967-11-10 Polymerisation of pivalolactone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5120167A GB1142538A (en) 1967-11-10 1967-11-10 Polymerisation of pivalolactone

Publications (1)

Publication Number Publication Date
GB1142538A true GB1142538A (en) 1969-02-12

Family

ID=10459049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5120167A Expired GB1142538A (en) 1967-11-10 1967-11-10 Polymerisation of pivalolactone

Country Status (1)

Country Link
GB (1) GB1142538A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994003522A1 (en) * 1992-08-04 1994-02-17 Ministero Dell'università E Della Ricerca Scienti Fica E Tecnologica A process for the production of poly(lactic acid)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994003522A1 (en) * 1992-08-04 1994-02-17 Ministero Dell'università E Della Ricerca Scienti Fica E Tecnologica A process for the production of poly(lactic acid)
US5543494A (en) * 1992-08-04 1996-08-06 Ministero Dell'univerita' E Della Ricerca Scientifica E Tecnologica Process for the production of poly(lactic acid)

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