Energy & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 10, 2024
The
demand
for
engineering
plastics,
such
as
polyoxymethylene
(POM),
used
in
the
electronics
and
automotive
industries
is
increasing
rapidly.
It
becoming
increasingly
important
to
reduce
adverse
effects
of
waste
plastics
on
environment
ecosystem
achieve
goals
circular
economy.
Pyrolysis,
gasification,
hydrothermal
conversion,
solvolysis,
electrochemical
depolymerization
have
been
widely
studied
chemical
methods
manage
plastic
waste.
Chemical
recycling
a
representative
effective
approach
recover
monomers
or
syngas
from
This
paper
reviews
properties
POM
waste,
various
reaction
mechanisms
options
with
major
studies.
In
addition,
economic
feasibility
discussed.
Finally,
opportunities
future
challenges
regarding
are
suggested.
Chemistry - A European Journal,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 22, 2025
Abstract
Chlorinated
polymers
have
made
enormous
contributions
to
materials
science
and
are
commercially
produced
on
a
large
scale.
These
chlorinated
could
be
recycled
as
chlorine
sources
efficiently
produce
valuable
compounds
owing
their
facile
release
of
HCl.
Although
the
thermal
stability
PVDC
is
low
compared
PVC,
this
can
advantageous
in
terms
easy
fast
dehydrochlorination.
Herein,
we
report
an
efficient
electrochemical
chlorination
using
poly(vinylidene
chloride)
(PVDC)
source
that
works
undivided
cell
applies
good
number
examples.
This
method
commodity
such
waste
PVDC‐PVC
pharma
blister
film,
PVDC‐PO
multilayer
food
packaging,
compression
molded
sheets
Ixan
(with
heat
stabilizer)
with
similar
efficiency.
Furthermore,
also
provides
dechlorination
up
98
%,
leading
unsaturated
dechlorinated
material.
Converting
into
more
stable
compounds,
harmful
chlorine‐containing
gases
during
incineration
minimized.
Additionally,
not
only
restricted
batch
processes
but
electroflow
process
for
electrosynthesis
has
been
demonstrated.
Macromolecules,
Год журнала:
2025,
Номер
58(5), С. 2210 - 2223
Опубликована: Фев. 18, 2025
Polymeric
materials
have
become
indispensable
due
to
their
versatility
and
low
cost,
yet
environmental
impact
presents
a
significant
global
challenge.
Traditional
chemical
recycling
methods
typically
rely
on
heat
as
stimulus;
for
instance,
pyrolysis
is
popular
methodology
which
faces
limitations
high
energy
consumption,
product
selectivity,
the
generation
of
undesirable
byproducts.
In
response,
recent
advances
in
promotion
depolymerization
degradation
through
alternative
stimuli
such
light,
electrochemistry,
mechanical
force,
shown
promising
potential
more
efficient
selective
polymer
breakdown,
yielding
either
starting
monomers
or
valuable
small
molecules.
This
perspective
explores
key
examples
these
emerging
strategies,
highlighting
improve
upon
current
protocols
offer
pathways
under
milder
conditions,
while
identifying
challenges
that
future
research
must
address
translate
chemistry
into
viable
broadly
applicable
strategies.
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(48)
Опубликована: Сен. 10, 2024
Abstract
Plastics
are
omnipresent
in
our
everyday
life,
and
accumulation
of
post‐consumer
plastic
waste
environment
represents
a
major
societal
challenge.
Hence,
methods
for
recycling
high
demand
future
circular
economy.
Specifically,
the
degradation
polymers
towards
value‐added
small
molecules
constitutes
sustainable
strategy
carbon
Despite
recent
advances,
chemical
polymer
continues
to
be
largely
limited
redox
agents
or
low
energy
efficiency
photochemical
processes.
We
herein
report
powerful
iron‐catalyzed
molecular
weight
polystyrenes
through
electrochemistry
efficiently
deliver
monomeric
benzoyl
products.
The
robustness
ferraelectrocatalysis
was
mirrored
by
various
real‐life
plastics,
also
on
gram
scale.
cathodic
half
reaction
represented
hydrogen
evolution
(HER).
scalable
electro‐polymer
could
solely
fueled
solar
commercially
available
panel,
indicating
an
outstanding
potential
decentralized
green
ACS Macro Letters,
Год журнала:
2024,
Номер
unknown, С. 1345 - 1354
Опубликована: Сен. 25, 2024
Electrolysis
is
an
emerging
approach
to
polymer
postpolymerization
modification,
deconstruction,
and
depolymerization.
Electrochemical
reactions
are
particularly
appealing
for
macromolecular
transformations
because
of
their
high
selectivity,
ability
be
externally
monitored,
intrinsic
scalability.
Despite
these
desirable
features
the
recent
resurgent
use
small-molecule
electrochemical
reactions,
development
electrolysis
has
been
limited.
Herein,
we
highlight
examples
driven
by
heterogeneous
redox
chemistry.
Throughout
our
exploration
electrolysis,
provide
perspective
on
opportunities
continued
investigation
in
this
nascent
field.
Specifically,
how
targeted
reaction
through
deeper
mechanistic
insight
will
expand
scope
materials
that
can
(de)constructed
with
methods.
As
developed,
expect
emerge
as
a
high-functioning
complementary
tool
functionalization
deconstruction.
Macromolecular Rapid Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 18, 2025
Abstract
The
demand
for
commodity
plastics
reaches
unprecedented
dimensions.
In
contrast
to
the
well‐developed
plethora
of
methods
polymer
synthesis,
sustainable
strategies
end‐of‐life
management
continue
be
scarce.
While
mechanical
re‐cycling
often
results
in
downgraded
materials,
chemical
or
up‐cycling
offers
tremendous
potential
an
efficient
and
green
approach,
thereby
addressing
precarious
treatment
post‐use
within
a
circular
carbon
economy.
Recently,
electrochemistry
surfaced
as
uniquely
powerful
tool
via
functionalization
degradation
obtaining
either
novel
polymers
with
valorized
properties
high‐value
recycled
small
molecules,
respectively.
discussing
recent
progress
that
domain,
future
perspectives
electrochemical
modifications
until
January
2025
are
outlined
herein.
Machines,
Год журнала:
2025,
Номер
13(5), С. 362 - 362
Опубликована: Апрель 28, 2025
Polyvinyl
chloride
(PVC)
recycling
poses
significant
engineering
challenges
and
opportunities,
particularly
regarding
material
integrity,
energy
efficiency,
integration
into
circular
manufacturing
systems.
This
systematic
review
evaluates
recent
advancements
in
mechanical
innovations,
tooling
strategies,
intelligent
technologies
reshaping
PVC
recycling.
An
emphasis
is
placed
on
machinery-driven
solutions—including
high-efficiency
shredders,
granulators,
extrusion
moulders,
advanced
sorting
systems
employing
hyperspectral
imaging
robotics.
further
explores
chemical
technologies,
such
as
pyrolysis,
gasification,
supercritical
fluid
extraction,
for
managing
contamination
additive
removal.
The
of
Industry
4.0
notably
digital
twins
artificial
intelligence,
highlighted
its
role
predictive
maintenance,
real-time
quality
assurance,
process
optimisation.
A
combined
PRISMA
approach
ontological
mapping
are
applied
to
classify
technological
pathways
lifecycle
optimisation
strategies.
Critical
constraints—including
thermal
degradation,
leaching,
feedstock
heterogeneity—are
examined
alongside
emerging
like
microwave-assisted
depolymerisation,
offering
scalable,
low-emission
solutions.
Regulatory
instruments,
REACH
Extended
Producer
Responsibility
(EPR),
analysed
their
influence
machinery
compliance
design
standards.
Drawing
from
sustainable
frameworks,
this
study
also
promotes
eco-designs,
modular
paper
concludes
by
proposing
a
digitally
optimized,
machinery-integrated
model
aligned
with
economy
principles
support
the
development
future-ready
reprocessing
infrastructures.
serves
comprehensive
resource
researchers,
practitioners,
policymakers,
advancing
polymer
