GB1042149A - Polymerization of episulphides - Google Patents

Polymerization of episulphides

Info

Publication number
GB1042149A
GB1042149A GB2770262A GB2770262A GB1042149A GB 1042149 A GB1042149 A GB 1042149A GB 2770262 A GB2770262 A GB 2770262A GB 2770262 A GB2770262 A GB 2770262A GB 1042149 A GB1042149 A GB 1042149A
Authority
GB
United Kingdom
Prior art keywords
carbonate
catalyst
propylene
zinc carbonate
polymerization
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
GB2770262A
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB2770262A priority Critical patent/GB1042149A/en
Priority to FR2770262A priority patent/FR1371277A/en
Priority to FR2770262A priority patent/FR1363722A/en
Priority to DE19631495461 priority patent/DE1495461B2/en
Priority to DE1963D0042038 priority patent/DE1244415B/en
Publication of GB1042149A publication Critical patent/GB1042149A/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
    • C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
    • C08G75/02—Polythioethers
    • C08G75/06—Polythioethers from cyclic thioethers
    • C08G75/08—Polythioethers from cyclic thioethers from thiiranes

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)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

Polyepisulphides are prepared by polymerizing at least one episulphide which is free from aliphatic unsaturation in the presence of a catalyst comprising a carbonate of a metal of Group IIB of the Periodic Table. Preferably the catalyst is activated prior to use by heating to an elevated temperature which is below the decomposition temperature of the carbonate. The preferred catalyst is zinc carbonate which may be heated before use, preferably to 140-350 DEG C., particularly 200-300 DEG C. Suitable monomers include ethylene, propylene, butylene, phenylene and styrene sulphides. Polymerization may be effected by the emulsion or solution polymerization techniques, preferably the latter. The products obtained from propylene sulphide using cadmium carbonate as the catalyst are said to be partially crystalline, whereas those obtained with zinc carbonate are amorphous. Example I describes a series of experiments in which propylene sulphide is polymerized in the presence of treated and untreated zinc carbonate and, in some cases, in the presence of diethyl ether. In Example 2 propylene sulphide is polymerized in the presence of zinc carbonate which has been heated to various temperatures. Example 3 demonstrates the use of a variety of inert solvents for the propylene sulphide/zinc carbonate system. In Example 4 cadmium carbonate is used as a catalyst for propylene sulphide polymerization.
GB2770262A 1962-07-19 1962-07-19 Polymerization of episulphides Expired GB1042149A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB2770262A GB1042149A (en) 1962-07-19 1962-07-19 Polymerization of episulphides
FR2770262A FR1371277A (en) 1962-07-19 1963-07-18 Elastomeric polymers of saturated episulfides and unsaturated episulfides
FR2770262A FR1363722A (en) 1962-07-19 1963-07-18 Episulfide polymerization process
DE19631495461 DE1495461B2 (en) 1962-07-19 1963-07-19 Process for the production of mixed polymers
DE1963D0042038 DE1244415B (en) 1962-07-19 1963-07-19 Process for the production of polythioethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2770262A GB1042149A (en) 1962-07-19 1962-07-19 Polymerization of episulphides

Publications (1)

Publication Number Publication Date
GB1042149A true GB1042149A (en) 1966-09-14

Family

ID=10263906

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2770262A Expired GB1042149A (en) 1962-07-19 1962-07-19 Polymerization of episulphides

Country Status (3)

Country Link
DE (1) DE1244415B (en)
FR (2) FR1371277A (en)
GB (1) GB1042149A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366609A (en) * 1964-09-12 1968-01-30 Dunlop Rubber Co Polymerization of episulfides

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504050A (en) * 1966-07-05 1970-03-31 Thiokol Chemical Corp Alkylene sulfide block interpolymers

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1122710B (en) * 1959-11-07 1962-01-25 Degussa Process for the production of polythioethers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366609A (en) * 1964-09-12 1968-01-30 Dunlop Rubber Co Polymerization of episulfides

Also Published As

Publication number Publication date
DE1244415B (en) 1967-07-13
FR1363722A (en) 1964-06-12
FR1371277A (en) 1964-09-04

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