ACS Sustainable Resource Management,
Journal Year:
2024,
Volume and Issue:
1(9), P. 2086 - 2107
Published: Aug. 22, 2024
The
composites
industry
is
now
turning
to
a
new
sustainable
material
called
biobased
epoxy
vitrimer.
This
great
substitute
for
traditional
petroleum-based
thermosets,
which
are
not
recyclable
and
cause
environmental
pollution
CO2
emissions.
On
the
other
hand,
vitrimers
option
due
their
recyclability,
reprocessability,
repairability
properties.
Recent
research
has
emphasized
developing
derived
from
vegetable
oil,
lignin,
vanillin,
etc.
covalent
adaptation
networks
properties
of
these
have
also
been
explored.
review
examines
current
trends
in
used
vitrimer
materials
several
applications
such
as
adhesives,
coatings,
shape
memory,
self-healing,
composites.
aims
provide
proper
guidelines
preparation
that
can
significantly
contribute
development
research.
Green Chemistry,
Journal Year:
2022,
Volume and Issue:
24(11), P. 4363 - 4387
Published: Jan. 1, 2022
Thermosets
have
many
advantages
such
as
excellent
mechanical
properties,
dimensional
stability
and
environmental
resistance,
but
suffer
from
unsustainability
because
they
are
difficult
to
recycle
overdependent
on
petroleum
chemicals.
Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
44(7)
Published: Jan. 20, 2023
Abstract
The
rapid
increase
in
the
use
of
plastics
and
related
sustainability
issues,
including
depletion
global
petroleum
reserves,
have
rightly
sparked
interest
biobased
polymer
feedstocks.
Thermosets
cannot
be
remolded,
processed,
or
recycled,
hence
reused
because
their
permanent
molecular
architecture.
Vitrimers
emerged
as
a
novel
family
capable
bridging
difference
between
thermoplastic
thermosets.
enable
unique
recycling
strategies,
however,
it
is
still
important
to
understand
where
raw
material
feedstocks
originate
from.
Transesterification
vitrimers
derived
from
renewable
resources
are
massive
opportunity,
limited
research
has
been
conducted
this
specific
vitrimers.
This
review
article
provides
comprehensive
overview
transesterification
produced
monomers.
focus
on
biomass
structural
suitability
with
dynamic
covalent
chemistry,
well
viability
synthetic
methods.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(15), P. 6021 - 6031
Published: April 3, 2023
Epoxy
vitrimers
encompass
many
advantages
compared
to
traditional
epoxy
materials
such
as
recyclability,
repairability,
and
reprocessability.
These
properties
are
induced
by
the
incorporation
of
dynamic
reversible
covalent
bonds.
Recently,
aromatic
disulfide
bridges
that
has
expanded
development
new
eco-friendly
materials.
Herein,
we
studied
a
bio-based
aliphatic
based
on
cystamine
hardener
with
vanillin-derived
bio-sourced
prepare
fully
vitrimers.
This
article
provides
comparative
study
between
an
benchmark
issued
from
petrol
resources.
work
demonstrated
presence
this
significant
influence
not
only
reactivity,
but
most
importantly
resulting
properties.
An
interesting
yet
counterintuitive
accelerating
effect
exchanges
was
clearly
2
20%
molar
fraction
added
formulation.
A
similar
glass
transition
obtained
purely
analogue,
relaxation
times
were
decreased
order
magnitude.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(12), P. 7829 - 7906
Published: June 3, 2024
Covalent
network
polymers,
as
materials
composed
of
atoms
interconnected
by
covalent
bonds
in
a
continuous
network,
are
known
for
their
thermal
and
chemical
stability.
Over
the
past
two
decades,
these
have
undergone
significant
transformations,
gaining
properties
such
malleability,
environmental
responsiveness,
recyclability,
crystallinity,
customizable
porosity,
enabled
development
integration
dynamic
chemistry
(DCvC).
In
this
review,
we
explore
innovative
realm
polymers
focusing
on
recent
advances
achieved
through
application
DCvC.
We
start
examining
history
fundamental
principles
DCvC,
detailing
its
inception
core
concepts
noting
key
role
reversible
bond
formation.
Then
reprocessability
DCvC
is
thoroughly
discussed,
starting
from
milestones
that
marked
evolution
progressing
to
current
trends
applications.
The
influence
crystallinity
then
reviewed,
covering
diversity,
synthesis
techniques,
functionalities.
concluding
section,
address
challenges
faced
field
speculates
potential
future
directions.
Progress in Polymer Science,
Journal Year:
2024,
Volume and Issue:
152, P. 101816 - 101816
Published: March 26, 2024
Permanent
polymer
networks
present
an
important
sustainability
challenge.
Irreversible
covalent
crosslinks
impart
these
materials
excellent
mechanical
properties,
thermal
and
chemical
resistance,
yet
also
render
them
difficult
to
repair
recycle.
Self-healing
mechanisms
can
extend
the
lifetime
of
thermosets
elastomers,
improving
their
durability
making
lifecycle
more
sustainable.
In
addition
extension,
this
paper
reviews
self-healing
polymers
from
a
holistic
point
view.
The
entire
is
critically
assessed
with
reference
green
chemistry
principles
sustainable
development.
relation
between
chemistries
aspects
each
phases
are
discussed,
starting
feedstocks,
monomer
functionalisation
synthesis,
processing
manufacturing
as
well
end-of-life
considerations,
i.e.
recycling
or
(bio)degradation.
review
provides
toolbox
for
development
thermosets,
elastomers
composites.
It
utmost
importance
consider
materials,
derived
products
–
by
extension
any
material
product.
ability
often
related
recyclability
should
primarily
reduce
amount
new
that
necessary
fulfill
societal
needs,
extending
maximizing
reprocessing
into
products.
Increasing
healing
efficiency
number
cycles
improves
overall
environmental
impact
relative
extended
service
lifetime.
Renewable
resources
biomass,
processes
waste
streams
be
first
choice
create
polymers.
Finally,
biodegradability
considered
complementary
scenario
upon
accidental
loss
environment,
provided
biodegradation
does
not
start
under
prospected
use
conditions
products,
but
postponed
until
contact
stimuli
in
environment.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(38), P. 13836 - 13867
Published: Sept. 2, 2023
Covalent
adaptable
networks
(CANs)
play
an
important
role
in
polymer
chemistry,
as
they
provide
innovative
link
between
thermoplastics
and
thermosets.
The
breakthrough
idea
behind
CANs
is
to
at
least
partially
replace
irreversible
crosslinks
classic
thermoset
polymers
with
dynamic
covalent
bonds
that
allow
for
reversible
character
recyclability.
Besides,
also
offer
other
popular
features
such
self-healing,
weldability,
configurability,
shape
memory.
Most
are
still
petroleum-based,
yet
shifting
toward
more
sustainable
approaches
of
the
utmost
interest.
Considering
this
high
abundance
lignocellulosic
biomass,
perspective
focuses
on
all
research
found
lignin-based
CANs,
including
both
those
starting
from
fractionated
lignin
monomers.
This
clearly
a
new
branch
within
bio-based
holds
great
potential
various
industries.
Additionally,
some
examples
derived
same
building
blocks
given
showcase
chemical
transformations
can
be
used
design
future.
Although
CAN
has
been
extended
many
different
types
bonds,
imines
disulfides
largely
prevail
current
literature.
Lastly,
SWOT
(strengths,
weaknesses,
opportunities,
threats)
analysis
presented,
considering
performance,
competition,
drawbacks
lignin-derived
CANs.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(22), P. 8350 - 8361
Published: May 25, 2023
Vitrimers
represent
permanent
and
dynamic
polymer
networks
at
the
same
time.
The
combination
of
covalent
bonds
widely
available,
biodegradable,
biobased
raw
materials
enables
new
polymers
with
an
excellent
carbon
footprint,
mechanical
properties,
outstanding
features
in
terms
multiple
recycling
methods,
e.g.,
thermomechanical,
chemical,
biological
reprocessing/reusability.
Natural
corn
starch
granules
have
been
surface-modified
by
acetoacetylation
reaction
without
using
any
additional
solvent
maintaining
inner
semicrystalline
structure,
giving
a
polyfunctional
cross-linker
for
starch-reinforced
vitrimer
composites.
Vinylogous
urethane
matrices
were
synthesized
condensation
fully
acetoacetylated
glycerol
different
diamines,
while
diamines
deliberately
selected
as
potentially
materials.
Seven
matrix
vitrimers
content
0–70
wt
%
modified
investigated
their
thermal
properties.
In
total,
20
elastomeric
thermosetting
prepared,
exhibiting
high
elastic
moduli
2
GPa
short
stress
relaxation
times
up
to
70
%.
composites
show
low
swelling
ratios,
suppressing
natural
gelatinization
water.
Moreover,
suitable
enzymatic
methods
closed-loop
cycles,
remolding,
reusability,
biodegradability
developed.
