NL7807562A - Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst - Google Patents
Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst Download PDFInfo
- Publication number
- NL7807562A NL7807562A NL7807562A NL7807562A NL7807562A NL 7807562 A NL7807562 A NL 7807562A NL 7807562 A NL7807562 A NL 7807562A NL 7807562 A NL7807562 A NL 7807562A NL 7807562 A NL7807562 A NL 7807562A
- Authority
- NL
- Netherlands
- Prior art keywords
- polymer
- gps
- catalyst
- monomer
- terminal ester
- Prior art date
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
-
- 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
- C08G65/26—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 and other compounds
- C08G65/2642—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 and other compounds characterised by the catalyst used
- C08G65/2669—Non-metals or compounds thereof
- C08G65/2678—Sulfur or compounds thereof
-
- 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
- C08G65/26—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 and other compounds
- C08G65/2642—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 and other compounds characterised by the catalyst used
- C08G65/2669—Non-metals or compounds thereof
- C08G65/2684—Halogens or compounds thereof
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
A copolyether glycol with terminal ester gps. is prepd. by reacting (A) THF with (B) an alkylene oxide contg. a 2-3C ring, or with a cyclic acetal of formula: (where n is 2-4; X and X1 are H, or 1-4C alkyl) in the presence of (C) a catalyst, and (D) a cpd. which can give an acylium ion R'-C +=O (where R' is H or hydrocarbon radical), esp. acetic anhydride. The catalyst is (a) a homopolymer of an ethylenically unsatd. monomer contg. gps. such that the final polymer contains the gps. (where represents the polymer chain or a chain segment; Z is H, 1-10C aliphatic or aromatic hydrocarbon radical, or halogen; D is as Z or a polymer chain segment; X and Y are H, halogen, 1-10C aliphatic or aromatic hydrocarbon radical, >=1 being F; R is a linear or branched gp. with a =40C principal chain); or (b) a copolymer of (a) with >=1 other ethylenically unsatd. monomer. The (co)polymer has an equiv. wt. of 950-1500 pref. 1000-1300 and dissolves at = about 5 wt.% in the reaction mass at the temp. of reaction. The copolyether glycol with terminal ester gps. can be converted to copolyether glycol which is used in the prepn. of polyurethanes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7807562A NL7807562A (en) | 1978-07-13 | 1978-07-13 | Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7807562A NL7807562A (en) | 1978-07-13 | 1978-07-13 | Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7807562A true NL7807562A (en) | 1980-01-15 |
Family
ID=19831252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7807562A NL7807562A (en) | 1978-07-13 | 1978-07-13 | Prepn. of co:polyether glycol! with terminal ester gps. - by copolymerising THF with alkylene oxide or cyclic acetal using (co)polymer of unsatd. monomer(s) as catalyst |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7807562A (en) |
-
1978
- 1978-07-13 NL NL7807562A patent/NL7807562A/en not_active Application Discontinuation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |