FR2361433A1 - Polytetramethyleneether glycol prepn. from tetrahydro-furan - using recoverable polymer catalyst contg. fluoro-sulphonic acid gp. - Google Patents

Polytetramethyleneether glycol prepn. from tetrahydro-furan - using recoverable polymer catalyst contg. fluoro-sulphonic acid gp.

Info

Publication number
FR2361433A1
FR2361433A1 FR7723914A FR7723914A FR2361433A1 FR 2361433 A1 FR2361433 A1 FR 2361433A1 FR 7723914 A FR7723914 A FR 7723914A FR 7723914 A FR7723914 A FR 7723914A FR 2361433 A1 FR2361433 A1 FR 2361433A1
Authority
FR
France
Prior art keywords
aliphatic
halogen
contg
thf
prepn
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.)
Granted
Application number
FR7723914A
Other languages
French (fr)
Other versions
FR2361433B1 (en
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 FR2361433A1 publication Critical patent/FR2361433A1/en
Application granted granted Critical
Publication of FR2361433B1 publication Critical patent/FR2361433B1/fr
Granted 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
    • C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
    • C08G65/16—Cyclic ethers having four or more ring atoms
    • C08G65/20—Tetrahydrofuran

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyethers (AREA)

Abstract

Poly(tetramethylene ether) glycol (PTMEG) with terminal ester gps. or its copolymer is prepd. by: (A) reacting (1) tetrahydrofuran (THF) and opt. up to 50%, based on THF, of an alkyl THF of formula (I) (where one of R1-4 is 1-4C alkyl and the others are H), (2) an acylium ion precursor, (3) a catalyst comprising a polymer of ethylenically unsatd. monomers, contg. gp. (where is the polymer chain or segment, D is H, 1-10C aliphatic or aromatic hydrocarbon gp, halogen or a segment of the polymer chain, X and Y are H, halogen, 1-10C aliphatic or aromatic gp. or F >=1 being F, R is linear or branched bridging gp. contg. up to 40C in the main chain, and Z is H, halogen, 1-10C aliphatic or aromatic gp. or F), the polymer being free of functional gps. hindering the reaction, (4) opt. a 1-36C aliphatic carboxylic acid pref. acetic acid. The PTMEG ester is then sepd. from the reaction medium and can be hydrolysed with a base to give the glycol. The catalyst can be sepd. from the reaction medium after the reaction and reused.
FR7723914A 1976-03-31 1977-08-03 Polytetramethyleneether glycol prepn. from tetrahydro-furan - using recoverable polymer catalyst contg. fluoro-sulphonic acid gp. Granted FR2361433A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US67255576A 1976-03-31 1976-03-31
US67255676A 1976-03-31 1976-03-31
US67255776A 1976-03-31 1976-03-31
US75121176A 1976-12-16 1976-12-16

Publications (2)

Publication Number Publication Date
FR2361433A1 true FR2361433A1 (en) 1978-03-10
FR2361433B1 FR2361433B1 (en) 1981-10-23

Family

ID=27505348

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723914A Granted FR2361433A1 (en) 1976-03-31 1977-08-03 Polytetramethyleneether glycol prepn. from tetrahydro-furan - using recoverable polymer catalyst contg. fluoro-sulphonic acid gp.

Country Status (2)

Country Link
ES (1) ES468332A1 (en)
FR (1) FR2361433A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429234A1 (en) * 1978-06-20 1980-01-18 Du Pont Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalysts

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE705513A (en) * 1967-10-23 1968-04-23
NL7400043A (en) * 1972-12-29 1974-07-02
NL7511378A (en) * 1974-09-26 1976-03-30 Basf Ag PROCESS FOR THE POLYMERIZATION OF TETRAHYDROFURAN.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE705513A (en) * 1967-10-23 1968-04-23
NL7400043A (en) * 1972-12-29 1974-07-02
FR2212364A1 (en) * 1972-12-29 1974-07-26 Kao Corp
NL7511378A (en) * 1974-09-26 1976-03-30 Basf Ag PROCESS FOR THE POLYMERIZATION OF TETRAHYDROFURAN.
FR2286156A1 (en) * 1974-09-26 1976-04-23 Basf Ag TETRAHYDROFURAN POLYMERIZATION PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2429234A1 (en) * 1978-06-20 1980-01-18 Du Pont Co:polyether-glycol! from alkylene oxide or cyclic acetal and THF - using fluorosulphonic acid gp. contg. polymers as catalysts

Also Published As

Publication number Publication date
FR2361433B1 (en) 1981-10-23
ES468332A1 (en) 1979-10-16

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