Amorphous polyether glycols based on bis-substituted oxetane monomers
View Patent ↗This invention is directed to mono- and bis-substituted oxetane monomers having fluorinated alkoxymethylene side chains, hydroxy-terminated prepolymers derived from these mono- and bis-substituted oxetane monomers and tetrahydrofuran (THF), and polymers produced from these prepolymers, as well as the synthesis processes associated with each, and the use of the monomers, prepolymers and ultimate polymers, both directly and as components of numerous compositions.
1. A fluorinated polyurethane elastomer having FOX/THF segments and comprising a mixture of monomeric units having the general formulae:
wherein:
n is independently selected and is 1 to 3;
R f 1 and R f 2 are independently selected from the group consisting of linear and branched perfluorinated alkyls having 1–20 carbon atoms, and oxaperfluorinated polyethers having from about 4–20 carbon atoms;
R 1 is a divalent hydrocarbyl radical;
x is 1–250;
z is 1–250; and
w is 1–250.
2. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoset polyurethane elastomer.
3. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoplastic polyurethane elastomer.
4. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said isocyanate segment is selected from the group consisting of hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), 4,4′-methylene diphenylisocyanate (MDI), polymeric MDI, toluene diisocyanates, saturated MDI (HMDI), polymeric HDI (N-100 and N-3200), trimethylhexane diisocyanate and mixtures thereof trimethylhexane diisocyanate and mixtures thereof.
5. A fluorinated polyurethane elastomer in accordance with claim 1 , further comprising a crosslinking agent or a chain extender selected from the group consisting of low molecular weight polyols and polyamines.
6. A fluorinated polyurethane elastomer in accordance with claim 5 , wherein said cross-linking agents is selected from the group consisting of trimethylol-propane, pentaerythritol, ISONOL 93, trimethylolethane, triethanolamine, Jeffamines, 1,4-butanediamine, xylene diamine, diethylenetriamine, methylene dianiline and diethanol-amine.
7. A fluorinated polyurethane elastomer in accordance with claim 5 , wherein said chain extender is selected from the group consisting of 1,4-butane diol, 1,3-propane diol and benzene dimethanol.
8. A fluorinated polyurethane elastomer in accordance with claim 1 , wherein said fluorinated polyether segment is produced from at least one bis-substituted FOX monomer selected from the group consisting of 3,3-(2,2,2-trifluoro-ethoxymethyl)oxetane, 3,3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane, 3,3-(2,2,3,-3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,7,-7,8,8,8-tridecafluorooctyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,-10-heptadecafluorodecyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,-11,12,12,12-heneicosafluorododecyloxymethyl)oxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane and 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane.
9. A fluorinated polyurethane elastomer in accordance with claim 8 , wherein said bis-substituted FOX monomer is selected from the group consisting of 3,3-(2,2,2-trifluoroethoxymethyl)oxetane, 3,3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,8-trideca-fluorooctyloxymethyl)oxetane and 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane.
10. A fluorinated polyurethane elastomer comprising a mixture of monomeric units having the general formulae:
wherein:
n is independently selected and is 1 to 3;
R is selected from the group consisting of methyl and ethyl;
R f 1 , R f 2 and R f 3 are independently selected from the group consisting of linear and branched perfluorinated alkyls having 1–20 carbon atoms, and oxaperfluorinated polyethers having from about 4–20 carbon atoms;
R 1 is a divalent hydrocarbyl radical;
x is 1–250;
y is 1–250;
z is 1–250; and
w is 1–50.
11. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoset polyurethane elastomer.
12. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said fluorinated polyurethane elastomer is a fluorinated thermoplastic polyurethane elastomer.
13. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said isocyanate segment is selected from the group consisting of hexamethylene diisocyanate (HDI), isopherone diisocyanate (IPDI), 4,4-methylene diphenylisocyanate (MDI), polymeric MDI (Isonates), toluene diisocyanates, saturated MDI (HMDI), polymeric HDI (N-100 and N-3200), trimethylhexane diisocyanate and mixtures thereof.
14. A fluorinated polyurethane elastomer in accordance with claim 10 , further comprising a crosslinking agent or a chain-extender selected from the group consisting of low molecular weight polyols and polyamines.
15. A fluorinated polyurethane elastomer in accordance with claim 14 , wherein said crosslinking agents is selected from the group consisting of trimethylolpropane, pentaerythritol, ISONOL 93, trimethylolethane, triethanolamine, Jeffamines, 1,4-butanediamine, xylene diamine, diethylenetriamine, methylene dianiline and diethanolamine.
16. A fluorinated polyurethane elastomer in accordance with claim 14 , wherein said chain extender is selected from the group consisting of 1,4-butane diol, 1,3-propane diol and benzene dimethanol.
17. A fluorinated polyurethane elastomer in accordance with claim 14 , wherein said bis-substituted FOX monomer is selected from the group consisting of 3,3-(2,2,2-trifluoroethoxymethyl)oxetane, 3,3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-oxetane, 3,3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,-7,7,8,8,8-tridecafluorooctyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,-10,10,10-heptadecafluorodecyloxymethyl)oxetane, 3,3-(3,3,4,4,5,5,6,6,-7,7,8,8,9,9,10,-10,11,11,12,12,12-heneicosafluorododecyloxymethyl)oxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane, and 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)oxetane and mixtures thereof.
18. A fluorinated polyurethane elastomer in accordance with claim 10 , wherein said mono-substituted FOX monomer is selected from the group consisting of 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane, 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-methyloxetane, 3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluorooctyloxymethyl)-3-methyloxetane, 3-(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyloxymethyl)-3-methyloxetane, 3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyloxy-methyl)-3-methyloxetane, 3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,-10,10,11,11,12,12,12-heneicosafluorododecyloxymethyl)-3-methyloxetane and mixtures thereof.
19. A fluorinated polyurethane elastomer in accordance with claim 17 , wherein said bis-substituted FOX monomer is selected from the group consisting of 3,3-(2,2,2-trifluoroethoxymethyl)oxetane, 3,3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-oxetane, 3,3-(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyloxymethyl)oxetane and 3-(2,2,2-trifluoroethoxymethyl)-3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)oxetane.
20. A fluorinated polyurethane elastomer in accordance with claim 18 , wherein said mono-substituted FOX monomer is selected from the group consisting of 3-(2,2,3,3,4,4,4-heptafluorobutoxymethyl)-3-methyloxetane, 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane and 3-(2,2,2-trifluoroethoxymethyl)-3-methyloxetane.