ACS Sustainable Chemistry & Engineering,
Год журнала:
2022,
Номер
10(3), С. 1267 - 1276
Опубликована: Янв. 10, 2022
Due
to
its
high
crystallinity,
tailored
compostability,
and
superior
barrier
performance,
poly(glycolic
acid)
(PGA)
has
great
potential
as
a
substitute
for
current
single-use
plastics
used
in
food
packaging
applications
with
lower
carbon
footprint.
However,
susceptibility
hydrolysis
mechanical
brittleness
hinders
direct
suitability
packaging.
In
this
work,
we
circumvent
limitation
by
first
blending
PGA
thermoplastic
polyester,
poly(butylene
adipate-co-terephthalate)
(PBAT),
glycidyl
cross-linker
via
industrial-scale
twin-screw
extrusion
then
converting
film
blown
extrusion.
The
surface
of
the
films
was
chemically
cross-linked
using
electron
beam
treatment
(EBT)
impart
excellent
properties.
Here,
plays
dual
role.
Firstly,
it
cross-links
improves
oxygen
moisture
both
improved
due
PBAT.
Second,
does
not
compromise
toughness
or
extension
at
break
polymer
blend,
desirable
flexible
applications.
A
dosage
250
kGy
EBT
resulted
having
an
permeation
57.0–59.8
cm3
mm
m–2
24
h–1
atm–1
water
vapor
26.8
g
while
maintaining
75
MPa.
At
dosages
higher
than
300
kGy,
inhomogeneities
formed
on
some
degradation
properties
is
observed.
This
work
highlights
possibility
deriving
biopolymer
performance
retaining
required
combination
treatment,
scalable
processes.
Green Chemistry,
Год журнала:
2023,
Номер
25(8), С. 2896 - 2929
Опубликована: Янв. 1, 2023
Lignin
is
a
promising
bio-polyphenol
that
can
be
used
as
catalyst
in
various
industrial
and
commercial
processes.
Its
high
catalytic
activity
reusability
provide
sustainable
alternative
to
conventional
catalysts.
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(23), С. 10334 - 10346
Опубликована: Май 28, 2024
Microplastics
(MPs)-derived
dissolved
organic
matter
(MPs-DOM)
is
becoming
a
non-negligible
source
of
DOM
pools
in
aquatic
systems,
but
there
limited
understanding
about
the
photoreactivity
different
MPs-DOM.
Herein,
MPs-DOM
from
polystyrene
(PS),
polyethylene
terephthalate
(PET),
poly(butylene
adipate-co-terephthalate)
(PBAT),
PE,
and
polypropylene
(PP),
representing
aromatic,
biodegradable,
aliphatic
plastics,
were
prepared
to
examine
their
photoreactivity.
Spectral
high-resolution
mass
spectrometry
analyses
revealed
that
PS/PET/PBAT-DOM
contained
more
unsaturated
aromatic
components,
whereas
PE/PP-DOM
was
richer
saturated
components.
Photodegradation
experiments
observed
molecules
prone
be
degraded
compared
molecules,
leading
higher
degradation
than
PE/PP-DOM.
mainly
by
hydroxyl
(•OH)
via
attacking
structures,
singlet
oxygen
(1O2)
through
oxidizing
side
chains.
The
[•OH]ss
1.21–1.60
×
10–4
M
0.97–1.14
PE/PP-DOM,
while
[1O2]ss
0.90–1.35
10–12
0.33–0.44
M,
respectively.
This
contributes
stronger
with
degree
photodegradation
reflected
decreasing
tendency
aromatic-unsaturated
aliphatic-saturated
molecules.
Special
attention
should
paid
environmental
impacts
associated
containing
highly
compounds.
Polymers,
Год журнала:
2020,
Номер
12(10), С. 2277 - 2277
Опубликована: Окт. 3, 2020
The
quest
for
converting
lignin
into
high-value
products
has
been
continuously
pursued
in
the
past
few
decades.
In
its
native
form,
is
a
group
of
heterogeneous
polymers
comprised
phenylpropanoids.
major
commercial
streams,
including
Kraft
lignin,
lignosulfonates,
soda
and
organosolv
are
produced
from
industrial
processes
paper
pulping
industry
emerging
lignocellulosic
biorefineries.
Although
viewed
as
low-cost
renewable
feedstock
to
replace
petroleum-based
materials,
utilization
polymeric
materials
suppressed
due
low
reactivity
inherent
physicochemical
properties
lignin.
Hence,
various
modification
strategies
have
developed
overcome
these
problems.
Herein,
we
review
recent
progress
made
functionalized
lignins
commodity
thermoset
resins,
blends/composites,
grafted
copolymers
carbon
fiber
precursors.
synthesis
resins
such
polyurethane,
phenol-formaldehyde
epoxy,
they
covalently
incorporated
polymer
matrix,
discussion
focused
on
chemical
modifications
improving
technical
lignins.
functionalization
based
upon
tuning
intermolecular
forces
between
components.
addition,
functional
expanded
lignin-based
biomedical
value-added
additives.
Different
approaches
also
applied
facilitate
application
precursors,
heavy
metal
adsorbents
nanoparticles.
These
fields
will
create
new
opportunities
cost-effectively
integrating
valorization
Green Chemistry,
Год журнала:
2020,
Номер
22(24), С. 8623 - 8632
Опубликована: Янв. 1, 2020
Biodegradable
composite
materials
are
increasingly
imperative
in
modern
society
owing
to
their
eco-friendly
character,
and
further
reducing
costs
improving
compatibility
of
composites
will
facilitate
applications.
Green Chemistry,
Год журнала:
2021,
Номер
24(2), С. 565 - 584
Опубликована: Дек. 14, 2021
This
review
summarizes
the
current
advances
on
application
of
lignin-based
materials
in
rechargeable
batteries
regarding
electrode
materials,
binders,
separators,
and
electrolytes,
respectively.
