What is claimed is:
1. A method for producing functionalized lignin, the method comprising:
providing a residue comprising lignin and cellulose;subjecting the residue to a liquid comprising an organic compound, thereby forming a first mixture;
wherein the subjecting is performed at a first temperature of about 100° C. or less; andwherein the first mixture comprises:
CROSS REFERENCE TO RELATED APPLICATIONS
The application claims the benefit of U.S. Application No. 61/987,270 filed May 1, 2014, and U.S. Application No. 62/011,879 filed Jun. 13, 2014, the entire disclosures of which are incorporated herein by reference.