Green Chemistry,
Год журнала:
2021,
Номер
23(11), С. 4065 - 4073
Опубликована: Янв. 1, 2021
The
dissolution
and
further
alkaline
hydrolysis
of
PET
in
biomass-derived
γ-valerolactone
is
realized
at
a
relatively
mild
temperature
high
efficiency.
ChemSusChem,
Год журнала:
2021,
Номер
14(10), С. 2145 - 2162
Опубликована: Апрель 9, 2021
In
recent
years,
mechanochemistry
has
been
growing
into
a
widely
accepted
alternative
for
chemical
synthesis.
addition
to
their
efficiency
and
practicality,
mechanochemical
reactions
are
also
recognized
sustainability.
The
association
between
Green
Chemistry
often
originates
from
the
solvent-free
nature
of
most
protocols,
which
can
reduce
waste
production.
However,
satisfies
more
than
one
Principles
Chemistry.
this
Review
we
will
present
series
examples
that
clearly
illustrate
how
significantly
contribute
fulfillment
in
holistic
manner.
Polymers,
Год журнала:
2021,
Номер
13(9), С. 1475 - 1475
Опубликована: Май 2, 2021
The
polyethylene
terephthalate
(PET)
application
has
many
challenges
and
potential
due
to
its
sustainability.
conventional
PET
degradation
was
developed
for
several
technologies
get
higher
yield
products
of
ethylene
glycol,
bis(2-hydroxyethyl
terephthalate)
terephthalic
acid.
chemical
recycling
is
reviewed,
such
as
pyrolysis,
hydrolysis,
methanolysis,
glycolysis,
ionic-liquid,
phase-transfer
catalysis
combination
glycolysis–hydrolysis,
glycolysis–methanolysis
methanolysis–hydrolysis.
Furthermore,
the
reaction
kinetics
conditions
were
investigated
both
theoretically
experimentally.
solve
environmental
problems
find
another
source
raw
material
petrochemical
energy.
Chemical Reviews,
Год журнала:
2024,
Номер
124(5), С. 2617 - 2650
Опубликована: Фев. 22, 2024
The
societal
importance
of
plastics
contrasts
with
the
carelessness
which
they
are
disposed.
Their
superlative
properties
lead
to
economic
and
environmental
efficiency,
but
linearity
puts
climate,
human
health,
global
ecosystems
at
risk.
Recycling
is
fundamental
transitioning
this
linear
model
into
a
more
sustainable,
circular
economy.
Among
recycling
technologies,
chemical
depolymerization
offers
route
virgin
quality
recycled
plastics,
especially
when
valorizing
complex
waste
streams
poorly
served
by
mechanical
methods.
However,
exists
in
interlinked
system
end-of-life
fates,
complementarity
each
approach
key
environmental,
economic,
sustainability.
This
review
explores
recent
progress
made
five
commercial
polymers:
poly(ethylene
terephthalate),
polycarbonates,
polyamides,
aliphatic
polyesters,
polyurethanes.
Attention
paid
not
only
catalytic
technologies
used
enhance
efficiencies
also
interrelationship
other
systemic
constraints
imposed
Novel
polymers,
designed
for
depolymerization,
concisely
reviewed
terms
their
underlying
chemistry
potential
integration
current
plastic
systems.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
62(27)
Опубликована: Апрель 1, 2023
Abstract
The
accumulation
of
plastic
waste,
due
to
lack
recycling,
has
led
serious
environmental
pollution.
Although
mechanical
recycling
can
alleviate
this
issue,
it
inevitably
reduces
the
molecular
weight
and
weakens
properties
materials
is
not
suitable
for
mixed
materials.
Chemical
on
other
hand,
breaks
polymer
into
monomers
or
small‐molecule
constituents,
allowing
preparation
quality
comparable
that
virgin
polymers
be
applied
Mechanochemical
degradation
leverages
advantages
techniques,
such
as
scalability
efficient
energy
use,
achieve
chemical
recycling.
We
summarize
recent
progress
in
mechanochemical
synthetic
polymers,
including
both
commercial
those
designed
more
degradation.
also
point
out
limitations
present
our
perspectives
how
challenges
mitigated
a
circular
economy.
Green Chemistry,
Год журнала:
2024,
Номер
26(12), С. 6857 - 6885
Опубликована: Янв. 1, 2024
Amongst
all
synthetic
polymers
used
in
the
clothing
industry,
polyethylene
terephthalate
(PET)
is
most
widely
polyester,
its
fibres
representing
half
total
PET
global
market
(in
comparison
bottle
being
less
than
a
third).