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

Abstract

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:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1134075
Patent Number(s):
8,748,537
Application Number:
14/058,657
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Oct 21
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Naskar, Amit K., Saito, Tomonori, Pickel, Joseph M., Baker, Frederick S., Eberle, Claude Clifford, Norris, Robert E., and Mielenz, Jonathan Richard. Lignin-derived thermoplastic co-polymers and methods of preparation. United States: N. p., 2014. Web.
Naskar, Amit K., Saito, Tomonori, Pickel, Joseph M., Baker, Frederick S., Eberle, Claude Clifford, Norris, Robert E., & Mielenz, Jonathan Richard. Lignin-derived thermoplastic co-polymers and methods of preparation. United States.
Naskar, Amit K., Saito, Tomonori, Pickel, Joseph M., Baker, Frederick S., Eberle, Claude Clifford, Norris, Robert E., and Mielenz, Jonathan Richard. Tue . "Lignin-derived thermoplastic co-polymers and methods of preparation". United States. https://www.osti.gov/servlets/purl/1134075.
@article{osti_1134075,
title = {Lignin-derived thermoplastic co-polymers and methods of preparation},
author = {Naskar, Amit K. and Saito, Tomonori and Pickel, Joseph M. and Baker, Frederick S. and Eberle, Claude Clifford and Norris, Robert E. and Mielenz, Jonathan Richard},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {6}
}

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Works referenced in this record:

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


Lignin-based Carbon Fibers: Effect of Synthetic Polymer Blending on Fiber Properties
journal, April 2005


Enzymatic co-polymerization of lignin with low-molecular mass compounds
journal, January 1994

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  • DOI: 10.1007/BF00173342