mass-spectrometry-congress-2019-posters-abstracts

Page 49

May 20-21, 2019 | Rome, Italy

OF EXCELLENCE

IN INTERNATIONAL

MEETINGS

YEARS

Journal of Chemical Technology and Applications | Volume 3

MASS SPECTROMETRY,

PROTEOMICS AND POLYMER CHEMISTRY

International Conference on

Mass Spectrometry Congress 2019

NEW MATERIALS AND POLYMERS FROM SOFTWOOD KRAFT LIGNIN: CARBON FIBERS,

HEAT STABLE THERMOPLASTICS

Dimitris S Argyropoulos

North Carolina State University, USA

he complexity of native softwood lignin when coupled with the complexity of the kraft pulping process is

known to lead to a rather heterogeneous material that has eluted us to date. During this lecture a new struc-

tural constitutional scheme will be proposed for Softwood Kraft Lignin. This effort attempts to unify and ratio-

nalize our current knowledge of kraft pulping chemistry with a series of focused NMR and Chromatographic

measurements. This effort will thus introduce the foundations for describing our systematic efforts in the fol-

lowing areas aimed at arriving at practical applications for an otherwise intractable raw material. More specifi-

cally the lecture will cover our efforts in: Refining technical kraft lignin, so as to expose its potential as a source

for reactive polyphenols of well-defined molecular weight polymers and oligomers. We will then demonstrate

that a continuum of narrow fractions can be isolated from softwood kraft lignin, common to a variety of such

sources irrespective of the manufacturing details of the pulping process. Such consistently homogeneous lig-

nin streams from technical lignins offer significant commercial ramifications; creating heat stable kraft lignin

copolymers with heat stabilities approaching 3000; creating novel blends with polylolefins; creating new ther-

moplastic lignin polymers and precursors to carbon fibers by applying propargylation derivatization chemistry

followed by thermal treatments. This approach offers a versatile novel route for the eventual chain extension

and utilization of technical lignins with a significant amount of molecular control.

J Chem Tech App 2019, Volume 3