Actinically-crosslinkable polysiloxane-polyglycerol block copolymers and methods of making and use thereof

1. A composition comprising an actinically-crosslinkable polysiloxane-polyglycerol block copolymer derived from: a polysiloxane prepolymer comprising a polyglycerol side chain, the polyglycerol side chain comprising an ethylenically unsaturated group covalently linked thereto, wherein the ethylenically unsaturated group is actinically curable.

2. The composition of claim 1 , wherein the polysiloxane prepolymer is linear or branched.

3. The composition of claim 1 , wherein the ethylenically unsaturated group is covalently linked to the polyglycerol side chain directly or wherein the ethylenically unsaturated group is covalently linked to the polyglycerol side chain through a linking group.

4. The composition of claim 1 , wherein the ethylenically unsaturated group comprises acryloyl, acrylamide, alkyl acrylamide, dialkyl acrylamide, methacryloyl, allyl, vinyl, styrenyl, or a combination thereof.

5. The composition of claim 1 , wherein the actinically-crosslinkable polysiloxane-polyglycerol block copolymer is defined by Formula I:

wherein

R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , and J 1 are, independently, alkyl, cycloalkyl, aryl, alkylpolyethylene oxide, or polyglycerol, any of which is optionally substituted with halide, hydroxy, thiol, carbonyl, alkoxy, alkylhydroxy, carboxyl, amino, amido, alkyl, alkenyl, alkynyl, aryl, —NR x R y , —C(O)NR x R y , azide, or a combination thereof;

Q 1 and Q 2 are independently H, OH, amino, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylaryl, or heteroaryl, any of which is optionally substituted with epoxy, hydroxy, thiol, carbonyl, alkoxy, alkylhydroxy, carboxyl, amino, amido, alkyl, alkenyl, alkynyl, aryl, —NR x R y , —C(O)NR x R y , azide, or a combination thereof;

R x and R y are independently H, OH, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylaryl, or heteroaryl;

Cure Group comprises the ethylenically unsaturated group;

a, c, d, e, f, g, h, i, j, and k are, independently, an integer from 0 to 10,000;

with the proviso that:

at least one of e, g, h, and j is not 0, and

at least one of d, f, i, and k is not 0; and

b is an integer from 1 to 10,000.

6. The composition of claim 5 , wherein:

R 1 -R 11 and J 1 are, independently, C 1 -C 18 alkyl, C 3 -C 18 cycloalkyl, C 3 -C 20 aryl, alkylpolyethylene oxide, or polyglycerol, any of which is optionally substituted; and

Q 1 and Q 2 are independently C 1 -C 18 alkyl, C 3 -C 20 aryl, C 1 -C 18 perfluoroalkyl, C 1 -C 18 alkanol, C 1 -C 18 alkylthiol, C 1 -C 18 alkylamine, C 1 -C 18 dialkylamine, any of which is optionally substituted.

7. The composition of claim 5 , wherein the Cure Group is selected from the group consisting of:

wherein

R a is H, alkyl, or cycloalkyl, either of which is optionally substituted with halide, hydroxy, alkylthiol, carbonyl, alkoxy, alkylhydroxy, carboxyl, amino, amido, alkyl, alkenyl, alkynyl, aryl, —NR x R y , —C(O)NR x R y , or a combination thereof; and

R x and R y are independently H, OH, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylaryl, or heteroaryl.

8. The composition of claim 1 , wherein the polysiloxane prepolymer comprises polydimethylsiloxane.

9. The composition of claim 1 , wherein the actinically-crosslinkable polysiloxane-polyglycerol block copolymer is defined by Formula IX:

wherein

a, c, e, f, i, j and k are, independently, an integer from 0 to 10,000;

with the proviso that:

at least one of e and j is not 0, and

at least one of f, i, and k is not 0; and

b is an integer from 1 to 10,000.

10. The composition of claim 1 , wherein the actinically-crosslinkable polysiloxane-polyglycerol block copolymer is defined by Formula X:

wherein

a, c, e, f, i, j and k are, independently, an integer from 0 to 10,000;

with the proviso that:

at least one of e and j is not 0, and

at least one of f, i, and k is not 0; and

b is an integer from 1 to 10,000.

11. The composition of claim 1 , wherein the actinically-crosslinkable polysiloxane-polyglycerol block copolymer is defined by Formula XI:

wherein

a, c, e, f, i, j and k are, independently, an integer from 0 to 10,000;

with the proviso that:

at least one of e and j is not 0, and

at least one of f, i, and k is not 0; and

b is an integer from 1 to 10,000.

12. The composition of claim 1 , wherein the actinically-crosslinkable polysiloxane-polyglycerol block copolymer comprises a methacrylated polydimethylsiloxane-polyglycerol block copolymer; a chain extended actinically-crosslinkable polysiloxane-polyglycerol block copolymer; or a combination thereof.

13. The composition of claim 1 , wherein the actinically-crosslinkable polysiloxane-polyglycerol block copolymer comprises a chain extended actinically-crosslinkable polysiloxane-polyglycerol block copolymer and the chain extended actinically-crosslinkable polysiloxane-polyglycerol block copolymer is defined by Formula XII:

wherein

R 1 , R 1′ , R 2 , R 2′ , R 3 , R 3′ , R 4 , R 4′ , R 5 , R 5′ , R 6 , R 6′ , R 7 , R 7′ , R 8 , R 8′ , R 9 , R 9′ , R 10 , R 10′ , R 11 , R 11′ , J 1 , and J 1′ are, independently, alkyl, cycloalkyl, aryl, alkylpolyethylene oxide, or polyglycerol, any of which is optionally substituted with halide, hydroxy, thiol, carbonyl, alkoxy, alkylhydroxy, carboxyl, amino, amido, alkyl, alkenyl, alkynyl, aryl, —NR x R y , —C(O)NR x R y , azide, or a combination thereof;

Q 1 , Q 1′ , Q 2 , and Q 2′ are independently H, OH, amino, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylaryl, or heteroaryl, any of which is optionally substituted with epoxy, hydroxy, thiol, carbonyl, alkoxy, alkylhydroxy, carboxyl, amino, amido, alkyl, alkenyl, alkynyl, aryl, —NR x R y , —C(O)NR x R y , azide, or a combination thereof;

R x and R y are independently H, OH, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylaryl, or heteroaryl;

Cure Group and Cure Group′ independently comprise an ethylenically unsaturated group;

Z is a chain extension group;

a, a′, c, c′, d, d′, e, e′, f, f′, g, g′, h, h′, j, j′, k, and k′ are, independently, an integer from 0 to 10,000,

with the proviso that:

at least one of e, g, h, and j is not 0,

at least one of e′, g′, h′, and j′ is not 0,

at least one of d, f, i, and k is not 0, and

at least one of d′, f′, i′, and k′ is not 0; and

b and b′ are independently an integer from 1 to 10,000.

14. The composition of claim 13 , wherein:

R 1 -R 11 , R 1′ -R 11′ , J 1 , and J 1′ are, independently, C 1 -C 18 alkyl, C 3 -C 18 cycloalkyl, C 3 -C 20 aryl, alkylpolyethylene oxide, or polyglycerol, any of which is optionally substituted; and

Q 1 , Q 1′ , Q 2 , and Q 2′ are independently H, OH, aryl, epoxide, alkanol, alkylthio, alkenylthio, arylthio, amine, alkylamine, dialkylamine, (meth)acrylate, (meth)acrylamide, dialkyl (meth)acrylamide, vinyl, ketone, aldehyde, carboxylic acid, anhydride, or azide, any of which is optionally substituted.

15. The composition of claim 13 , wherein Cure Group and Cure Group′ are independently selected from the group consisting of:

wherein

R a is H, alkyl, or cycloalkyl, either of which is optionally substituted with halide, hydroxy, alkylthiol, carbonyl, alkoxy, alkylhydroxy, carboxyl, amino, amido, alkyl, alkenyl, alkynyl, aryl, —NR x R y , —C(O)NR x R y , or a combination thereof; and

R x and R y are independently H, OH, alkyl, alkenyl, alkynyl, cycloalkyl, aryl, alkylaryl, or heteroaryl.

16. A silicone hydrogel composition comprising the composition of claim 1 crosslinked with a crosslinker.

17. An interpenetrating polymer network comprising the composition of claim 1 crosslinked with a crosslinker in the presence of an initiator, a hydrophilic monomer, a hydrophobic monomer, an amphiphilic monomer, a zwitterionic monomer, a UV-blocker, a blue light blocker, an antimicrobial monomer, a dye, a pigment, a solvent, or a combination thereof.

18. A method of use of the composition of claim 1 in a medical device, in an ophthalmic device, as a coating for a medical device, as a wound dressing, or a combination thereof.

19. A contact lens comprising the composition of claim 1 , wherein the contact lens comprises a soft, hydrophilic contact lens.

20. The contact lens of claim 19 , wherein the contact lens exhibits hydrophilic surfaces without a post-curing surface treatment.