Abstract: A porous composition comprising a porous organic polymer (POP) fiber having a diameter of at least 100 nm and a length of at least 1 mm and pores having a size within a range of 10 nm to 5 microns distributed over the surface and volume of the POP fiber, wherein the organic polymer is insoluble in water and may be selected from, e.g., polyolefins, polyesters, polyamides, and polyacrylonitrile. Also described herein is a method for producing a POP fiber comprising: (i) forming a precursor fiber from a blend of an organic polymer and lignin, wherein the lignin is present in the form of domains within the precursor fiber; and (ii) washing the precursor fiber with a solvent that dissolves the lignin to result in the POP fiber. Also described herein is a method for removing oil from an oil-water mixture comprising contacting the oil-water mixture with the POP fibers.

Abstract: A solid polymer blend material comprising: (i) a lignin-acrylonitrile component containing a homogeneous blend of a lignin component and an acrylonitrile-containing rubber component; and (ii) a styrene-containing thermoplastic component that is non-elastomeric; wherein components (i) and (ii) are homogeneously dispersed in the polymer blend material. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s?1 and when heated to a temperature of no more than 240° C.; and (b) forming an object made of said polymer blend material.

Abstract: A plasticized terephthalate-based polyester blend comprising a terephthalate-based polyester (e.g., polyethylene terephthalate, i.e., PET) homogeneously blended with a fatty acid or ester thereof, wherein said fatty acid or ester thereof is present in said polyester blend in an amount of 1-50 wt %. Also described herein is a method for producing a plasticized terephthalate-based polyester blend, the method comprising melt mixing a terephthalate-based polyester with a fatty acid or ester thereof at a temperature in a range of 230-250° C. to produce said polyester blend, wherein said fatty acid or ester thereof is present in said polyester blend in an amount of 1-50 wt % and is homogeneously blended with said terephthalate-based polyester.

Abstract: A solid polymer blend material comprising: (i) lignin; and (ii) a polyamide having a melting point of no more than 240° C. and which is below the decomposition temperature of the lignin; wherein said lignin is homogeneously dispersed in said polyamide. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s?1 and when heated to a temperature of no more than 240° C.; and; (b) forming an object made of said polymer blend material.

Abstract: A solid polymer blend material comprising: (i) a lignin-acrylonitrile component containing a homogeneous blend of a lignin component and an acrylonitrile-containing rubber component; and (ii) a styrene-containing thermoplastic component that is non-elastomeric; wherein components (i) and (ii) are homogeneously dispersed in the polymer blend material. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s?1 and when heated to a temperature of no more than 240° C.; and (b) forming an object made of said polymer blend material.

Abstract: A solid polymer blend material comprising: (i) a lignin-acrylonitrile component containing a homogeneous blend of a lignin component and an acrylonitrile-containing rubber component; and (ii) a styrene-containing thermoplastic component that is non-elastomeric; wherein components (i) and (ii) are homogeneously dispersed in the polymer blend material. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s?1 and when heated to a temperature of no more than 240° C.; and (b) forming an object made of said polymer blend material.

Abstract: A plasticized terephthalate-based polyester blend comprising a terephthalate-based polyester (e.g., polyethylene terephthalate, i.e., PET) homogeneously blended with a fatty acid or ester thereof, wherein said fatty acid or ester thereof is present in said polyester blend in an amount of 1-50 wt %. Also described herein is a method for producing a plasticized terephthalate-based polyester blend, the method comprising melt mixing a terephthalate-based polyester with a fatty acid or ester thereof at a temperature in a range of 230-250° C. to produce said polyester blend, wherein said fatty acid or ester thereof is present in said polyester blend in an amount of 1-50 wt % and is homogeneously blended with said terephthalate-based polyester.

Abstract: A solid polymer blend material comprising: (i) a lignin-acrylonitrile component containing a homogeneous blend of a lignin component and an acrylonitrile-containing rubber component; and (ii) a styrene-containing thermoplastic component that is non-elastomeric; wherein components (i) and (ii) are homogeneously dispersed in the polymer blend material. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s?1 and when heated to a temperature of no more than 240° C.; and (b) forming an object made of said polymer blend material.

Abstract: A solid polymer blend material comprising: (i) lignin; and (ii) a polyamide having a melting point of no more than 240° C. and which is below the decomposition temperature of the lignin; wherein said lignin is homogeneously dispersed in said polyamide. Methods for producing the blend material are also described. Methods for producing objects made of the blend material by melt extrusion are also described, comprising: (a) melt blending components (i) and (ii) to form a polymer blend in which components (i) and (ii) are homogeneously blended, wherein the polymer blend exhibits a melt viscosity of no more than 2000 Pa·s at a shear rate of 100-1000 s?1 and when heated to a temperature of no more than 240° C.; and; (b) forming an object made of said polymer blend material.