Trifluorovinyl aromatic containing poly(alkyl ether) prepolymers
The present invention provides prepolymers based on poly(alkyl ethers) having terminal triflurovinyl aromatic containing groups and polymers produced from such polymers. The prepolymers and polymers are useful as biomedical devices such as contact lenses or intraocular lenses.
1. A poly(alkyl ether)prepolymer of the general formula T-(P) n -T wherein n is 1 to about 100,000, T is independently of the general formula
wherein L is an optional linking group and is independently a straight or branched C 1 -C 30 alkylene group, a C 3 -C 30 cycloalkylene group, a C 5 -C 30 aryl group, an ether group, a C 1 -C 20 ester group, an amide group, a siloxanyl, an arylsiloxanyl or a fluorosiloxanyl, R 1 independently represents one or more inertly substituted groups; X is independently a group which links the inertly substituted groups and the trifluorovinyl group; and P is independently an oxyalkylene radical of the general formula
wherein R 2 and R 3 are independently hydrogen, a straight or branched C 1 -C 6 alkyl group, a C 3 -C 30 cycloalkyl group, a C 5 -C 30 aryl group, a straight or branched C 1 -C 6 fluoroalkyl group, a C 3 -C 30 fluorocycloalkyl group, a C 5 -C 30 fluoroaryl group, an ether group, a C 1 -C 20 ester group, an amide group an amine group, fluorine, a vinyl group, or a hydroxyl group and m is 1 to about 10.
2. The poly(alkyl ether)prepolymer of claim 1 , wherein R 1 comprises a substituted or unsubstituted cyclic or polycyclic group optionally containing one or more heteroatoms and X is independently a bond, an oxygen atom, a sulfur atom, a carboxylic or thiocarboxylic ester group, a sulfone, a sulfoxide, perfluoroalkylene, perfluoroalkylene ether, alkylene, acetylene, a phosphine, a carbonyl or thiocarbonyl group; seleno; telluro; nitrido; a silanediyl group, a trisilanediyl group, a tetrasilanetetrayl group, a siloxanediyl group, a disiloxanediyl group, a trisiloxyl group, a trisilazanyl group, a silythio group, or a boranediyl group.
3. The poly(alkyl ether)prepolymer of claim 1 , wherein X is O, R 1 is one or more aromatic groups selected from the group consisting of
wherein R is independently hydrogen, a C 1 -C 20 alkyl group, a hydroxyl group, a C 1 -C 20 carboxylic acid group, a C 1 -C 20 ester group, a C 1 -C 20 alkoxy group, CO 2 − , SO 3 − , PO 3 − , OPO 3 2− , F, Br, I, NA 2 or NA 3 + wherein A is independently hydrogen, a C 1 -C 20 alkyl group, a hydroxyl group, a C 1 -C 20 carboxylic acid group, a C 1 -C 20 ester group, or a C 1 -C 20 alkoxy group, or two R groups together with the carbon atom to which they are bonded are joined together to form a cyclic structure optionally containing one or more heterocyclic groups; R 4 is a bond, a C 1 -C 20 alkylene or haloalkylene group optionally containing ether or ester linkages and wherein the X group and either the L or P group may independently be bonded to the aromatic group either ortho, meta and/or para with respect one another.
4. The poly(alkyl ether)prepolymer of claim 1 , wherein R 2 and R 3 are independently a straight or branched C 1 -C 6 alkyl group.
5. The poly(alkyl ether)prepolymer of claim 1 , wherein R 2 and R 3 are independently a straight or branched C 1 -C 6 fluoroalkyl group.
6. The poly(alkyl ether)prepolymer of claim 1 , wherein n is 3 to about 10,000, X is O, R 2 and R 3 are independently a straight or branched C 1 -C 6 alkyl group and the oxyalkylene units are formed as random copolymers.
7. The poly(alkyl ether)prepolymer of claim 1 , wherein n is 3 to about 10,000, X is O, R 2 and R 3 are independently a straight or branched C 1 -C 6 alkyl group and the oxyalkylene units are formed as block copolymers.
8. The poly(alkyl ether)prepolymer of claim 1 , wherein n is 3 to about 10,000, X is O, R 2 and R 3 are independently a straight or branched C 1 -C 6 fluoroalkyl group and the oxyalkylene units are formed as random copolymers.
9. The poly(alkyl ether)prepolymer of claim 1 , wherein n is 3 to about 10,000, X is O, R 2 and R 3 are independently a straight or branched C 1 -C 6 fluoroalkyl group and the oxyalkylene units are formed as block copolymers.
10. The poly(alkyl ether)prepolymer of claim 1 , which is selected from the group consisting of
wherein x, y and z are independently 0 and at least 1 with x+y+z being from 1 to equal to or less than about 10,000 and R 5 is independently hydrogen or a C 1 -C 4 alkyl group; and
wherein m and n are independently 0 and at least 1 with m+n being from 1 to equal to or less than about 10,000.
11. A biomedical device comprising the poly(alkyl ether)prepolymer of claim 1 .
12. The biomedical device of claim 11 , which is an ophthalmic lens.
13. The biomedical device of claim 12 , wherein the ophthalmic lens is a contact lens.
14. The biomedical device of claim 13 , wherein the contact lens is a rigid gas permeable lens.