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
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.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67255676A | 1976-03-31 | 1976-03-31 | |
US67255576A | 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)
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)
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. |
-
1977
- 1977-08-03 FR FR7723914A patent/FR2361433A1/en active Granted
-
1978
- 1978-03-29 ES ES468332A patent/ES468332A1/en not_active Expired
Patent Citations (5)
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)
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 |
---|---|
ES468332A1 (en) | 1979-10-16 |
FR2361433B1 (en) | 1981-10-23 |
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