Aliphatic diol-based polycarbonates, method of making, and articles formed therefrom

1. A copolymer comprising isosorbide carbonate units and a polysiloxane block, wherein the copolymer comprises greater than or equal to 50 mol % isosorbide carbonate units.

2. The copolymer of claim 1 wherein the polysiloxane block is derived from a siloxane-containing dihydroxy compounds that contains diorganosiloxane units blocks of formula (11):

wherein each occurrence of R is same or different, and is a C 1-13 monovalent organic group and E has an average value of about 2 to about 1,000.

3. The copolymer of claim 2 , wherein R is a C 1 -C 13 alkyl group, C 1 -C 13 alkoxy group, C 2 -C 13 alkenyl group, C 2 -C 13 alkenyloxy group, C 3 -C 6 cycloalkyl group, C 3 -C 6 cycloalkoxy group, C 6 -C 14 aryl group, C 6 -C 10 aryloxy group, C 7 -C 13 aralkyl group, C 7 -C 13 aralkoxy group, C 7 -C 13 alkylaryl group, or C 7 -C 13 alkylaryloxy group.

4. The copolymer of claim 1 wherein the polysiloxane block comprises units of formula (12):

wherein E has an average value of about 2 to about 1,000; each R is the same or different, and is a C 1-13 monovalent organic group; and each Ar is the same or different, and is a substituted or unsubstituted C 6 -C 30 arylene group, wherein the bonds are directly connected to an aromatic moiety.

5. The copolymer of claim 4 , wherein the Ar groups are derived from one or more compounds selected from the group consisting of 1,1-bis(4-hydroxyphenyl)methane, 1,1-bis(4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(4-hydroxyphenyl)butane, 2,2-bis(4-hydroxyphenyl)octane, 1,1-bis(4-hydroxyphenyl)propane, 1,1-bis(4-hydroxyphenyl)n-butane, 2,2-bis(4-hydroxy-1-methylphenyl)propane, 1,1-bis(4-hydroxyphenyl)cyclohexane, bis(4-hydroxyphenyl sulfide), 1,1-bis(4-hydroxy-3-methylphenyl)cyclohexane, and 1,1-bis(4-hydroxy-t-butylphenyl)propane.

6. The copolymer of claim 4 , wherein E has an average values of about 10 to about 70.

7. The copolymer of claim 1 wherein the polydiorganosiloxane block comprises a unit of formula (13):

wherein E has an average value of about 2 to about 1,000; each R is the same or different, and is a C 1-13 monovalent organic group, and each R 6 is independently a divalent C 1 -C 30 organic group.

8. The copolymer of claim 1 wherein the polydiorganosiloxane block comprises a unit of formula (14):

wherein E has an average value of about 2 to about 1,000, each R is the same or different, and is a C 1-13 monovalent organic group, R 7 is a divalent C 2 -C 8 aliphatic group, each M can be the same or different, and is a halogen, cyano, nitro, C 1 -C 8 alkylthio, C 1 -C 8 alkyl, C 1 -C 8 alkoxy, C 2 -C 8 alkenyl, C 2 -C 8 alkenyloxy group, C 3 -C 8 cycloalkyl, C 3 -C 8 cycloalkoxy, C 6 -C 10 aryl, C 6 -C 10 aryloxy, C 7 -C 12 aralkyl, C 7 -C 12 aralkoxy, C 7 -C 12 alkylaryl, or C 7 -C 12 alkylaryloxy, wherein each n is independently 0, 1, 2, 3, or 4.

9. The copolymer of claim 8 , wherein M is bromo or chloro, an alkyl group such as methyl, ethyl, or propyl, an alkoxy group such as methoxy, ethoxy, or propoxy, or an aryl group such as phenyl, chlorophenyl, or tolyl; R 7 is a dimethylene, trimethylene or tetramethylene group; and R is a C 1-8 alkyl or haloalkyl, or an aryl.

10. The copolymer of claim 8 , wherein R is methyl, or a combination of methyl and trifluoropropyl, or a combination of methyl and phenyl.

11. The copolymer of claim 8 , wherein M is methoxy, n is one, R 7 is a divalent C 1 -C 3 aliphatic group, and R is methyl.

12. The copolymer of claim 1 , wherein the polysiloxane is present in an amount of 0.15 to 30 wt % based on the total weight of polysiloxane blocks and carbonate units.

13. The copolymer of claim 1 , further comprising carbonate units of formula (1)

wherein R 1 is derived from a dihydroxy aromatic compound of formula (4)

wherein R a and R b each represent a halogen atom or a monovalent hydrocarbon group and can be the same or different; p and q are each independently integers of 0 to 4; and X a represents a single bond or one of the groups of formulas (5a) or (5b):

wherein R c and R d are each independently hydrogen, C 1-12 alkyl, C 1-12 cycloalkyl, C 7-12 arylalkyl, C 1-12 heteroalkyl, or cyclic C 7-12 heteroarylalkyl, and R e is a divalent C 1-12 hydrocarbon group.

14. The copolymer of claim 1 , wherein R 1 is derived from bisphenol A.

15. A copolymer comprising isosorbide carbonate units and a polydiorganosiloxane block comprising a unit of formula (14):

wherein E has an average value of about 4 to about 90, each R is the same or different, and is a C 1-13 monovalent organic group, R 7 is a divalent C 2 -C 8 aliphatic group, each M can be the same or different, and is a halogen, cyano, nitro, C 1 -C 8 alkylthio, C 1 -C 8 alkyl, C 1 -C 8 alkoxy, C 2 -C 8 alkenyl, C 2 -C 8 alkenyloxy group, C 3 -C 8 cycloalkyl, C 3 -C 8 cycloalkoxy, C 6 -C 10 aryl, C 6 -C 10 aryloxy, C 7 -C 12 aralkyl, C 7 -C 12 aralkoxy, C 7 -C 12 alkylaryl, or C 7 -C 12 alkylaryloxy, wherein each n is independently 0, 1, 2, 3, or 4, wherein the copolymer comprises greater than or equal to 50 mol % isosorbide carbonate units.

16. The copolymer of claim 15 wherein E has an average value of 10 to 70.

17. A copolymer comprising isosorbide carbonate units and a polysiloxane block wherein the polysiloxane block is derived from a siloxane-containing dihydroxy compounds that contains diorganosiloxane units blocks of formula (11):

wherein each occurrence of R is same or different, and is a C 1-13 monovalent organic group and E has an average value of about 10 to about 70 and the copolymer comprises greater than or equal to 50 mol % isosorbide carbonate units.