Project Details

Description

In this LigDYN project, lignin oil obtained by Reductive Catalytic
Fractionation (RCF), a game changing lignocellulose biorefining process,
will be functionalized for further incorporation in three major types of
Covalent Adaptive Networks (CAN). The RCF technology will be further
developed in this project and current RCF lignin oils are one of the best
molecularly characterized lignin types, containing mostly mono- and
oligomeric phenolics which ensure a lower viscosity than generally seen
for other available lignin types. Such oils are thus ideal for downstream
functionalization research, and present a clear inmprovement over
other available types of lignin. Both dissociative and associative CANs
will be explored in thermoreversibe thermoset resins for more
sustainable coatings and adhesives. As a starting point, we will improve
from an environmental viewpoint the lignin-based Diels-Alder
dissociative thermosets developed earlier, by avoiding the use of
solvents. Next to that, two up to now not explored associative
thermoset lignin chemistries will be developed, namely reversible imine
chemistry and reversible β‑amino ester chemistry. An extensive
comparison of all approaches will be made. In this way, optimal
chemistries will be proposed for the further development of sustainable
(anticorrosive) coatings as well as adhesives, truly sustainable because
not only are these materials biobased, due to the incorporation of lignin
into the network structure, but the reversible nature ensures the ability
to reprocess, reshape, and recycle. Such materials hold great promise as
alternatives for conventional phenolic resins, as is evident by the broad
interest from industrial partners, leading to an industrial user
committee with companies from the whole value chain of both coatings
and adhesives.
AcronymFWOSBO54
StatusActive
Effective start/end date1/10/2330/09/27

Keywords

  • Physical chemistry of materials
  • Materials synthesis
  • Polymers and plastics

Flemish discipline codes in use since 2023

  • Physical chemistry of materials

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