Ester-functional polysiloxanes and copolymers made therefrom

1. A polyorganosiloxane having the structure of Formula I:

wherein R 1 , R 2 , and R 3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, wherein at least one of R 1 , R 2 and R 3 is selected from an unsaturated radical or an alkenyloxy radical; R 4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen; R 5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group; R 6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group; and x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50.

2. A composition comprising the polyorganosiloxane of claim 1 , and a polymer selected from the group consisting of: polycarbonate homopolymers, polycarbonate copolymers, polycarbonate-polyesters, polyesters, polysulfones, polyethersulfones, polyetheretherketones, polyimides and polyetherimides.

3. An article comprising the composition of claim 2 .

4. The article of claim 3 , wherein the article is selected from the group consisting of mobile phone housings, frozen food service equipment, helmets, automotive windshields, motorcycle windshields, automotive sunroofs, dashboards, headlamps, and electric screens.

5. A copolymer composition containing a copolymer comprising at least one polyorganosiloxane having units of Formula III:

wherein R 1 , R 2 , and R 3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, wherein at least one of R 1 , R 2 and R 3 is selected from an unsaturated radical or an alkenyloxy radical; R 4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen; R 5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group; x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50.

6. The copolymer composition of claim 5 , wherein the copolymer further comprises structural units of Formula IV:

wherein each R 7 is a hydrocarbon radical having 1 to 60 carbon atoms, a divalent hydrocarbon group, a group derived from the structural unit of Formula V

where R 8 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group; and R 9 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group; and V is selected from the group consisting of:

wherein R 10 , R 11 are independently a hydrogen, halogen, an alkyl group having from 1 to 18 carbon atoms, an aryl group having from 3 to 14 carbon atoms, an aryloxy group having from 6 to 10 carbon atoms, an aralkyl group having from 7 to 20 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, a cycloalkyl group having from 6 to 20 carbon atoms, a cycloalkoxy group having from 6 to 20 carbon atoms, an alkenyl group having from 2 to 10 carbon atoms, an aralkyloxy group, a nitro group, an aldehyde group, a cyano group, or a carboxyl group.

7. The copolymer composition of claim 5 , further comprising a polycarbonate homopolymer, a polycarbonate copolymer, a polycarbonate-polyester, a polyester, a polysulfone, a polyethersulfone, a polyetheretherketone, a polyimide or a polyetherimide.

8. An article comprising the copolymer composition of claim 5 .

9. The copolymer composition of claim 6 , wherein R 9 is a hydroxy group and R 10 is an alkyl group of from 1 to 6 carbon atoms.

10. The article of claim 8 , wherein the article is selected from the group consisting of mobile phone housings, frozen food service equipment, helmets, automotive windshields, motorcycle windshields, automotive sunroofs, dashboards, headlamps and electric screens.

11. A method of making an article comprising: molding, shaping, or forming the copolymer composition of claim 5 to form the article.

12. A method of preparing a polysiloxane copolymer, comprising polymerizing a polyorganosiloxane of Formula I represented by:

wherein R 1 , R 2 , and R 3 are independently a hydrocarbon radical, an unsaturated radical, an alkoxy radical, an aryl radical or an alkenyloxy radical, wherein at least one of R 1 , R 2 and R 3 is selected from an unsaturated radical or an alkenyloxy radical; R 4 is independently a direct bond or hydrocarbon radical optionally substituted with oxygen and nitrogen; R 5 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group; and R 6 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group; wherein x is from 1 to 300; y is from 0 to 50; and z is from 0 to 50,

with a compound of Formula V represented by

where R 8 is independently a hydrogen, a halogen, an aliphatic group having from 1 to 6 carbon atoms, an aromatic group having 6 to 8 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or an aryloxy group; and R 9 is independently a hydroxyl group, an amine group, an acid chloride group, or a sulfonyl halide group; and V is selected from the group consisting of

wherein R 10 , R 11 are independently a hydrogen, halogen, an alkyl group having from 1 to 18 carbon atoms, an aryl group having from 3 to 14 carbon atoms, an aryloxy group having from 6 to 10 carbon atoms, an aralkyl group having from 7 to 20 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, a cycloalkyl group having from 6 to 20 carbon atoms, a cycloalkoxy group having from 6 to 20 carbon atoms, an alkenyl group having from 2 to 10 carbon atoms, an aralkyloxy group, a nitro group, an aldehyde group, a cyano group, or a carboxyl group in the presence of a carbonate precursor.

13. The method of claim 12 , wherein R 9 is a hydroxy group and R 10 is an alkyl group of from 1 to 6 carbon atoms.

14. The method of claim 12 , wherein the carbonate precursor is selected from the group consisting of phosgene, diphosgene, diarylcarbonate, bis(methylsalicyl)carbonate and a combination thereof.

15. The method of claim 12 , wherein the polymerizing is an interfacial polymerization process conducted in the presence of a solvent and optionally one or more catalysts.

16. The method of claim 15 , wherein the one or more catalysts are selected from the group consisting of: aliphatic amines, trialkylamine; and phase transfer catalysts of the formula (A 3 ) 4 L+B, wherein each A is independently a C1-10 alkyl group, L is a nitrogen or a phosphorus atom; and B is a halogen atom, a C1-8 alkoxy group or C6-18 aryloxy group.

17. The method of claim 12 , wherein the polymerizing step is an interfacial polymerization process conducted in the presence of a solvent, a caustic, and optionally one or more catalysts, and wherein the carbonate precursor is phosgene, diphosgene, diarylcarbonate, bis(methylsalicyl)carbonate, or a combination thereof.

18. The method of claim 12 , wherein polymerizing comprises reacting bisphenol A with phosgene in a biphasic solvent in the presence of a phase transfer catalyst to form a bischloroformate; wherein the method further comprises adding polyorganosiloxane.

19. The method of claim 18 , wherein the bischloroformates of polyorganosiloxane are formed in a tube reactor, and then added into an interfacial polycondensation reactor with catalyst.