Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(7), P. 4393 - 4478
Published: March 22, 2024
Polyesters
carrying
polar
main-chain
ester
linkages
exhibit
distinct
material
properties
for
diverse
applications
and
thus
play
an
important
role
in
today's
plastics
economy.
It
is
anticipated
that
they
will
even
greater
tomorrow's
circular
economy
focuses
on
sustainability,
thanks
to
the
abundant
availability
of
their
biosourced
building
blocks
presence
bonds
can
be
chemically
or
biologically
cleaved
demand
by
multiple
methods
bring
about
more
desired
end-of-life
plastic
waste
management
options.
Because
this
potential
promise,
there
have
been
intense
research
activities
directed
at
addressing
recycling,
upcycling
biodegradation
existing
legacy
polyesters,
designing
biorenewable
alternatives,
redesigning
future
polyesters
with
intrinsic
chemical
recyclability
tailored
performance
rival
commodity
are
either
petroleum
based
and/or
hard
recycle.
This
review
captures
these
exciting
recent
developments
outlines
challenges
opportunities.
Case
studies
poly(lactic
acid),
poly(3-hydroxyalkanoate)s,
poly(ethylene
terephthalate),
poly(butylene
succinate),
poly(butylene-adipate
presented,
emerging
recyclable
comprehensively
reviewed.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(33)
Published: June 13, 2024
Abstract
Plastics,
renowned
for
their
outstanding
properties
and
extensive
applications,
assume
an
indispensable
irreplaceable
role
in
modern
society.
However,
the
ubiquitous
consumption
of
plastic
items
has
led
to
a
growing
accumulation
waste.
Unreasonable
practices
production,
utilization,
recycling
plastics
have
substantial
energy
resource
depletion
environmental
pollution.
Herein,
state‐of‐the‐art
advancements
lifecycle
management
are
timely
reviewed.
Unlike
typical
reviews
focused
on
recycling,
this
work
presents
in‐depth
analysis
entire
plastics,
covering
whole
process
from
synthesis,
processing,
ultimate
disposal.
The
primary
emphasis
lies
selecting
judicious
strategies
methodologies
at
each
stage
mitigate
adverse
impact
waste
plastics.
Specifically,
article
delineates
rationale,
methods,
realized
various
stages
through
both
physical
chemical
pathways.
focal
point
is
attainment
optimal
rates
thereby
alleviating
ecological
burden
By
scrutinizing
aims
furnish
comprehensive
solutions
reducing
pollution
fostering
sustainability
across
all
facets
Science Advances,
Journal Year:
2024,
Volume and Issue:
10(10)
Published: March 8, 2024
Currently,
it
remains
challenging
to
balance
intrinsic
stiffness
with
programmability
in
most
vitrimers.
Simultaneously,
coordinating
materials
gel-like
iontronic
properties
for
ion
transmission
while
maintaining
vitrimer
programmable
features
underexplored.
Here,
we
introduce
a
phase-engineering
strategy
fabricate
bicontinuous
heterogel
(VHG)
materials.
Such
VHGs
exhibited
high
mechanical
strength,
an
elastic
modulus
of
up
116
MPa,
strain
performance
exceeding
1000%,
and
switchable
ratio
surpassing
5
×
10
3
.
Moreover,
highly
reprocessing
shape
memory
morphing
were
realized
owing
the
liquid–enhanced
VHG
network
reconfiguration.
Derived
from
pathway
ILgel,
which
responded
wide-span
mechanics,
iontronics
had
unique
bidirectional
stiffness-gated
piezoresistivity,
both
positive
negative
piezoresistive
properties.
Our
findings
indicate
that
system
can
act
as
foundational
material
various
promising
applications,
including
smart
sensors,
soft
machines,
bioelectronics.
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(12), P. 5005 - 5027
Published: March 19, 2024
Traditional
epoxy
resins
(EPR),
represented
by
bisphenol
A
type,
have
high
chemical
bond
energy,
low
polarity,
and
stable
properties.
The
topological
structure
after
curing
makes
EPR
impossible
for
convenient
recycling
through
heating
or
dissolution
like
thermoplastics.
This
results
in
traditional
having
no
advantage
of
efficient
recycling,
both
molecular
the
combination
morphology
polymer
chains.
However,
introducing
degradable
dynamically
cross-linked
structures
into
to
modify
their
will
bring
good
special
responsiveness,
with
expectation
achieve
while
maintaining
original
performance.
paper
reviews
research
progress
cross-linkable
such
as
ester,
acetal,
similar
structures,
Schiff
bases,
disulfide
bonds,
Diels–Alder
addition
structures.
highlights
impact
these
themselves
on
recycling.
We
discussed
potential
structures'
findings
small-molecule
organic
chemistry
International Polymer Processing,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 20, 2025
Abstract
Concerns
about
the
effect
on
environment
and
non-renewable
nature
of
plastics
have
sparked
a
substantial
field
study
towards
creation
recyclable
polymers.
Vitrimers
are
potential
class
reusable
polymers
that
recently
attracted
lot
interest.
Like
conventional
thermosets
in
strength,
durability,
chemical
resistance,
these
materials
offer
added
benefit
being
at
end
their
useful
life.
Their
structure,
which
includes
dynamic
covalent
crosslinks
to
provide
stability
while
enabling
reprocessing,
is
credited
with
this
special
characteristic.
We
lay
out
an
overview
recent
developments
applications
epoxy
based
vitrimeric
by
using
different
types
adaptable
networks
(CANs)
–
single,
dual
triple
paper
attention
design
tactics
make
it
easier
create
circular
future.
Covalent
Adaptable
Networks
(CAN),
novel
polymer
family
can
bridge
gap
between
thermoplastics,
emerged
years
uses
chemistry
crosslinked
networks.
The
was
enhanced
2011
Leibler
colleagues
when
they
introduced
notion
vitrimers,
retain
integrity
network
even
after
heating
allow
connections
be
reallocated
within
them
associative
exchange
reactions.
This
review
also
demonstrates
how
vitrimer
community
paying
need
for
sustainable
material
development
demonstrating
use
biobased
building
blocks
synthesis
high-performing
vitrimers.
Having
outlined
primary
characteristics
commercialization
vitrimers
emphasized
portray
benefits
self-healing,
malleability,
orthogonal
processability,
various
shape
memories
along
solutions
synthetic
materials.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 28, 2024
Abstract
Fabricating
polymeric
composites
with
desirable
characteristics
for
electronic
applications
is
a
complex
and
costly
process.
Digital
light
processing
(DLP)
3D
printing
emerges
as
promising
technique
manufacturing
intricate
structures.
In
this
study,
samples
are
fabricated
conductivity
difference
exceeding
three
orders
of
magnitude
in
various
portions
part
by
employing
grayscale
DLP
(g‐DLP)
single‐vat
single‐cure
deliberate
resin
design.
This
realized
through
the
manipulation
intensity
during
curing
Specifically,
rational
design
added
lithium
ions
results
polymer
cured
under
maximum
UV‐light
exhibiting
higher
electrical
resistance.
Conversely,
sections
that
only
partially
retains
uncured
monomers,
serving
medium
facilitates
ion
mobility,
consequently
leading
to
conductivity.
The
versatility
g‐DLP
allows
precise
control
different
regions
characteristic
opens
up
possibilities
applications,
notably
low‐cost,
facile,
rapid
production
circuits
sensors.
utilization
makes
it
feasible
fabricate
materials
tailored
functionality,
providing
an
innovative
pathway
advance
accelerated
facile
creation
sophisticated
devices.
