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Title: Lignin-derived thermoplastic co-polymers and methods of preparation

The present invention relates to a crosslinked lignin comprising a lignin structure having methylene or ethylene linking groups therein crosslinking between phenyl ring carbon atoms, wherein said crosslinked lignin is crosslinked to an extent that it has a number-average molecular weight of at least 10,000 g/mol, is melt-processible, and has either a glass transition temperature of at least 100.degree. C., or is substantially soluble in a polar organic solvent or aqueous alkaline solution. Thermoplastic copolymers containing the crosslinked lignin are also described. Methods for producing the crosslinked lignin and thermoplastic copolymers are also described.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1134075
Assignee:
UT-Battelle, LLC (Oak Ridge, TN) ORNL
Patent Number(s):
8,748,537
Application Number:
14/058,657
Contract Number:
AC05-00OR22725
Resource Relation:
Patent File Date: 2013 Oct 21
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Works referenced in this record:

Lignin-based carbon fibers: Oxidative thermostabilization of kraft lignin
journal, January 2005