Application US20190040247

Polarity Manipulation in Polystyrene for Enhanced Bio-Polymer Miscibility
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US20190040247

1.-20. (canceled) (0)

21. A styrenic composition comprising: (13) (5)

a polar modified styrenic co-polymer resulting from the polymerization of a combined mixture of at least one styrenic monomer and at least one comonomer;

a biodegradable component comprising polylactic acid; and

a polar additive comprising styrene maleic anhydride, glyceride oil, poly(1,4-butylene adipate), epoxidized linseed oil, polyester, or combinations thereof;

wherein the at least one comonomer comprises a polar functional group;

wherein the polar modified styrenic co-polymer and the biodegradable component are combined to obtain a styrenic composition comprising the biodegradable component.

22. The composition of claim 21, wherein the polar additive is present in the styrenic composition in amounts ranging from 0.5 to 10 wt % based on the total weight of the styrenic composition. (0)

23. The composition of claim 21, wherein the polar modified styrenic co-polymer is present in amounts ranging from 75 to 99 wt % based on the total weight of the styrenic composition. (0)

24. The composition of claim 21, wherein the comonomer comprising a polar functional group is selected from the group consisting of alkyl-(meth)acrylate, hydroxyl-alkyl(meth)acrylate, caprolactone(meth)acrylate, polyethylene glycol(meth)acrylate, (meth)acrylate acid, silyl-(meth)acrylate, and fluoro-alkyl(meth)acrylate. (0)

25. The composition of claim 21, wherein the biodegradable component in the styrenic composition has a particle size distribution having a peak particle size of less than 2.0 μm. (0)

26. An article made from the composition of claim 21. (0)

27. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component has a particle size distribution having a peak particle size ranging from 2 to 10 μm. (0)

28. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component has an average particle size ranging from 0.3 to 30 μm. (0)

30. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component exhibits a polydispersity index ranging from 1.0 to 5.0. (0)

31. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component exhibits a melt flow index of at least 1.0 g/10 min., as determined in accordance with ASTM D-1238. (0)

32. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component exhibits a glass transition temperature ranging from 50 to 200° C. (0)

33. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component has an average particle size distribution ranging from 0.1 to 1000. (0)

34. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component has a particle size distribution having a peak particle size ranging from 30 to 300 μm. (0)

35. The composition of claim 21, wherein the styrenic composition comprising the biodegradable component has a particle size distribution having a peak particle size ranging from 0.3 to 3 μm. (0)

27. A method of making a styrenic polymer comprising a biodegradable component comprising: (2) (3)

combining a styrenic monomer and a comonomer comprising a polar functional group to form a combined mixture;

subjecting the combined mixture to polymerization to obtain a polar modified styrenic co-polymer; and

combining the polar modified styrenic co-polymer with a biodegradable component and a polar additive to obtain the styrenic polymer comprising the biodegradable component, wherein the biodegradable component comprises polylactic acid, and wherein the polar additive comprises poly(1,4-butylene adipate), epoxidized linseed oil, or combinations thereof.

28. The method of claim 27, wherein the comonomer comprising a polar functional group is selected from the group consisting of alkyl-(meth)acrylate, hydroxyl-alkyl(meth)acrylate, caprolactone(meth)acrylate, polyethylene glycol(meth)acrylate, (meth)acrylate acid, silyl-(meth)acrylate, and fluoro-alkyl(meth)acrylate. (0)

29. The method of claim 27, wherein the biodegradable component in the styrenic composition has a particle size distribution having a peak particle size of less than 2.0 μm. (0)

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Application US20190040247

Polarity Manipulation in Polystyrene for Enhanced Bio-Polymer Miscibility

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