GB877834A - Improvements in or relating to polymers of thiocarbonyl difluoride - Google Patents

Improvements in or relating to polymers of thiocarbonyl difluoride

Info

Publication number
GB877834A
GB877834A GB24159/60A GB2415960A GB877834A GB 877834 A GB877834 A GB 877834A GB 24159/60 A GB24159/60 A GB 24159/60A GB 2415960 A GB2415960 A GB 2415960A GB 877834 A GB877834 A GB 877834A
Authority
GB
United Kingdom
Prior art keywords
fluoride
titanate
tetra
specified
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
GB24159/60A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB877834A publication Critical patent/GB877834A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Thiocarbonyl difluoride or a mixture of thiocarbonyl difluoride and a thioacyl fluoride of formula: <FORM:0877834/IV (a)/1> (where X and Y are hydrogen, halogen, a monovalent hydrocarbon radical or a halogenated hydrocarbon radical) at -80 DEG -10 DEG C., in an inert solvent, using as catalyst 0,1-10% mole (based on the monomer) of an alkoxide of formula M(OR)n (where M is aluminium or titanium, n is an integer equal to the valence of M and R is an alkyl radical) which is soluble in diethyl ether. Specified thioacyl fluorides are chlorofluorothioacetyl fluoride (preferred), difluorothioacetyl fluoride, trifluorothioacetyl fluoride, pentafluorothiopropionyl fluoride, chlorodifluorothioacetyl fluoride, pentafluorothio-3-butenoyl fluoride and 1, 1-difluorothiopropionyl fluoride. Specified catalysts are tetraisopropyl titanate (preferred), aluminium t-butoxide, triisopropyl aluminate, tetra-(2-ethylhexyl) titanate, tetra-n-butyl titanate, tetraisobutyl titanate, tetracyclopentyl titanate, tetra-2, 2-dimethyl-propyl titanate, tetra-n-nonyl titanate and mixtures thereof. Specified solvents are isopentane, pentane, cyclopentane, n-hexane, 2, 2, 4-trimethylpentane, methylcyclohexane, iso-octane, toluene, m-xylene, cumene, methylene chloride, ethyl chloride, cyclohexylchloride, n-octyl-chloride, chloroform, trimethylenechloride, m-dichlorobenzene, chlorobenzene, m-chlorotoluene, methyl ethyl ether, diethyl ether, isopropyl ether, di-n-amylether, tetrahydropyran, 1, 3-dioxane, tetrahydrofuran, anisole, phenetole and mixtures thereof. The polymer may be separated from the solution by adding a non-solvent, e.g. water or (preferably) methanol.
GB24159/60A 1959-07-16 1960-07-11 Improvements in or relating to polymers of thiocarbonyl difluoride Expired GB877834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US877834XA 1959-07-16 1959-07-16

Publications (1)

Publication Number Publication Date
GB877834A true GB877834A (en) 1961-09-20

Family

ID=22207226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24159/60A Expired GB877834A (en) 1959-07-16 1960-07-11 Improvements in or relating to polymers of thiocarbonyl difluoride

Country Status (1)

Country Link
GB (1) GB877834A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114621425A (en) * 2022-03-16 2022-06-14 中国石油化工股份有限公司 Titanium composition for synthesizing poly (butylene succinate-co-terephthalate) and PBST (Poly-p-phenylene Benzene-succinate) synthesis method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114621425A (en) * 2022-03-16 2022-06-14 中国石油化工股份有限公司 Titanium composition for synthesizing poly (butylene succinate-co-terephthalate) and PBST (Poly-p-phenylene Benzene-succinate) synthesis method
CN114621425B (en) * 2022-03-16 2024-06-11 中国石油化工股份有限公司 Titanium composition for synthesizing poly (butylene succinate) -co-terephthalic acid butanediol ester and method for synthesizing PBST (poly (butylene succinate)) by using titanium composition

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