Claims
- 1. A method for producing a polyether comprising subjecting an alkylene oxide to polymerization conditions in the presence of an initiator compound and a catalytically effective amount of a crosslinked organic polymer having pendant phosphazene or phosphazenium groups wherein said crosslinked organic polymer is substantially insoluble in said alkylene oxide and said polyether.
- 2. The method of claim 1 wherein the crosslinked organic polymer contains pendant phosphazenium groups having from about 1 to about 6 phosphorus atoms.
- 3. The method of claim 2 wherein said alkylene oxide is ethylene oxide, propylene oxide, 1,2-butylene oxide, or a mixture thereof.
- 4. The method of claim 2 wherein the alkylene oxide is ethylene oxide, the initiator compound is a secondary hydroxyl-terminated polyether polyol and the resulting polyether is EO-capped.
- 5. The method of claim 4 wherein the secondary hydroxyl-terminated polyether polyol is a poly(propylene oxide) polyol made using a DMC catalyst.
- 6. The method of claim 3 wherein said crosslinked organic polymer has a structure represented by the general formula
- 7. The method of claim 6 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety, and each R1 is hydrogen, methyl or ethyl, or together with an R group forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 8. The method of claim 7 wherein each R is methyl or ethyl, and each R1 is hydrogen, methyl or ethyl.
- 9. The method of claim 3 wherein said crosslinked organic polymer has a structure represented by the general formula
- 10. The method of claim 9 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety, and each R1 is hydrogen, methyl or ethyl, or together with an R group forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 11. The method of claim 10 wherein each R is methyl or ethyl, and each R1 is hydrogen, methyl or ethyl.
- 12. The method of claim 1 wherein the crosslinked organic polymer contains pendant phosphazene groups having from about 2 to about 6 phosphorus atoms.
- 13. The method of claim 12 wherein said alkylene oxide is ethylene oxide, propylene oxide, 1,2-butylene oxide, or a mixture thereof.
- 14. The method of claim 12 wherein the alkylene oxide is ethylene oxide, the initiator compound is a secondary hydroxyl-terminated polyether polyol and the resulting polyether is EO capped.
- 15. The method of claim 14 wherein the secondary hydroxyl-terminated polyether polyol is a poly(propylene oxide) polyol made using a DMC catalyst.
- 16. The method of claim 12 wherein said crosslinked organic polymer has pendant phosphazene groups and a structure represented by the general formula
- 17. The method of claim 16 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 18. The method of claim 17 wherein each R is methyl or ethyl.
- 19. The method of claim 12 wherein said crosslinked organic polymer has pendant phosphazene groups and a structure represented by the general formula
- 20. The method of claim 19 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 21. The method of claim 20 wherein each R is methyl or ethyl.
- 22. A cross-linked organic polymer having pendant phosphazene groups including at least two phosphorus atoms or phosphazenium groups including one or more phosphorus atoms, or a mixture of such phosphazene and phosphazenium groups.
- 23. The crosslinked organic polymer of claim 22 wherein said crosslinked organic polymer has a structure represented by the general formula
- 24. The crosslinked organic polymer of claim 23 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety, and each R1 is hydrogen, methyl or ethyl, or together with an R group forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 25. The crosslinked organic polymer of claim 24 wherein each R is methyl or ethyl, and each R1 is hydrogen, methyl or ethyl.
- 26. The crosslinked organic polymer of claim 22 wherein said crosslinked organic polymer has a structure represented by the general formula
- 27. The crosslinked organic polymer of claim 26 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety, and each R1 is hydrogen, methyl or ethyl, or together with an R group forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 28. The crosslinked organic polymer of claim 27 wherein each R is methyl or ethyl, and each R1 is hydrogen, methyl or ethyl.
- 29. The crosslinked organic polymer of claim 22 wherein said crosslinked organic polymer has pendant phosphazene groups and a structure represented by the general formula
- 30. The crosslinked organic polymer of claim 29 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 31. The crosslinked organic polymer of claim 30 wherein each R is methyl or ethyl.
- 32. The crosslinked organic polymer of claim 22 wherein said crosslinked organic polymer has pendant phosphazene groups and a structure represented by the general formula
- 33. The crosslinked organic polymer of claim 30 wherein each R is a C1-10 alkyl group, or together with another R forms a C2-5 alkylene group that forms part of a ring structure with a nitrogen atom or an —N—P—N— or —N—P═N— moiety.
- 34. The crosslinked organic polymer of claim 31 wherein each R is methyl or ethyl.
CROSS-REFERENCE STATEMENT
[0001] This application claims the benefit of U.S. application Ser. No. 60/205,775, filed on May 19, 2000.
Provisional Applications (1)
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Number |
Date |
Country |
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60205775 |
May 2000 |
US |