ChemSusChem,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 8, 2024
Paper-based
packaging
can
offer
a
sustainable
replacement
for
plastics.
However,
paper
provides
poor
barrier
to
water,
oxygen
and
moisture.
This
study
presents
novel
renewable
lignocellulosic
composite
made
from
hydrophobic
photo-reversible
coating
deposited
onto
cellulose
nanofiber
film
that
has
improved
properties
be
reprocessed.
Diglycerol
lignin-derivable
aldehyde
were
reacted
form
tetra-functional
monomer
with
photo-responsive
unsaturated
double
bonds
converted
covalent
cyclobutane
rings
create
reversibly
crosslinkable
network
upon
UV-irradiation.
The
compound
was
applied
as
thin
of
thickness
2.7±0.4
μm
over
(CNF)
films
80±19
μm.
surface
the
coated
became
contact
angle
(CA)
93.1±1.7°
displayed
low
water
vapour
transmission
rate
(WVTR)
16±2
g/m
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(13), P. 8473 - 8515
Published: June 27, 2024
A
powerful
toolbox
is
needed
to
turn
the
linear
plastic
economy
into
circular.
Development
of
materials
designed
for
mechanical
recycling,
chemical
and/or
biodegradation
in
targeted
end-of-life
environment
are
all
necessary
puzzle
pieces
this
process.
Polyesters,
with
reversible
ester
bonds,
already
forerunners
circularity:
poly(ethylene
terephthalate)
(PET)
most
recycled
material
suitable
and
while
common
aliphatic
polyesters
biodegradable
under
favorable
conditions,
such
as
industrial
compost.
However,
circular
design
needs
be
further
tailored
different
options
enable
recycling
greener
conditions
rapid
enough
even
less
environmental
conditions.
Here,
we
discuss
molecular
polyester
chain
targeting
enhancement
circularity
by
incorporation
more
easily
hydrolyzable
additional
dynamic
or
degradation
catalyzing
functional
groups
part
chain.
The
utilization
replacement
current
volume
plastics
also
reviewed
well
embedment
green
catalysts,
enzymes
matrices
facilitate
ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(30), P. 11347 - 11360
Published: July 12, 2024
In
this
study,
our
primary
focus
was
the
efficient
synthesis
of
epoxidized
soybean
oil
and
anhydrous
citric
acid
within
a
polylactic
(PLA)
matrix
through
ring-opening
reaction
catalyzed
by
zinc
acetate.
Our
objective
to
establish
dynamic
reversible
ester
exchange
network.
Subsequently,
we
introduced
cured
network
into
PLA
cross-linking,
aiming
enhance
compatibility
matrix.
This
process
resulted
in
preparation
series
composites
characterized
improved
toughness.
We
conducted
comprehensive
analysis
influence
various
carboxyl/epoxy
equivalent
ratios
(R
values)
on
mechanical
properties,
thermal
characteristics,
chemical
structures
composites.
findings
demonstrated
that,
during
cross-linking
process,
both
underwent
reactions
chain
with
matrix,
culminating
formation
well-defined
structure.
These
system
significantly
enhanced
internal
blends.
experimental
results
conclusively
indicated
that
optimal
toughness
achieved
when
R
value
set
0.1,
addition
5
parts
per
hundred
resin
(phr).
configuration
an
elongation
at
break
315%
impact
strength
28.5
kJ/m2.
Polymers for Advanced Technologies,
Journal Year:
2025,
Volume and Issue:
36(1)
Published: Jan. 1, 2025
ABSTRACT
Over
the
past
two
decades,
rising
demand
for
sustainable
materials
has
sparked
significant
interest
in
developing
plant‐based
or
bio‐based
polymers.
This
study
explores
an
innovative
approach
to
synthesizing
eco‐friendly
polyamide‐graphene
composites
using
maleinized
cottonseed
oil
(MACSO)
as
a
precursor.
The
were
produced
through
room‐temperature
catalyst‐free
ring
opening
of
MACSO
with
4,4′‐Diaminodiphenylmethane
(DDM)
and
graphenamine,
followed
by
high‐temperature
curing.
impact
graphenamine
content
on
composites'
structural,
thermo‐mechanical,
surface,
anticorrosion
properties
was
thoroughly
examined.
Notably,
composite
containing
3
wt%
demonstrated
superior
thermal
stability,
glass
transition
temperature
(
T
g
),
mechanical
toughness,
corrosion
resistance.
research
represents
unique
example
anhydride‐grafted
vegetable
amide
bond
formation
final
polymer,
highlighting
economically
viable
polyamide
synthesis.
Furthermore,
modifier
aligns
principles
green
chemistry,
offering
alternative
traditional
petrochemical‐based
additives.
Industrial & Engineering Chemistry Research,
Journal Year:
2024,
Volume and Issue:
63(8), P. 3600 - 3607
Published: Feb. 15, 2024
Ultraviolet
(UV)
imprint
lithography
plays
an
important
role
in
the
electronic
information
field
as
a
form
of
microstructure
molding.
Herein,
novel
photoresist
with
extremely
low
volume
shrinkage
(1.17%)
and
excellent
degradation
ability
was
developed
for
UV
based
on
biorenewable
cardanol,
epoxy
soybean
oil,
tripropylene
glycol
diacrylate
via
combined
free
radical/cationic
dual
curing.
The
viscosity
modified
cardanol
only
one-seventh
that
oil
can
be
used
reactive
diluent.
initiation
efficiency
cross-linking
density
were
significantly
improved,
showing
outstanding
thermal
stability
(T5%
312.8
°C),
adhesion
(3.9
MPa),
high
gel
content
(92.7%).
More
importantly,
manifested
pattern
transfer
ability,
adhesive
displayed
removability
from
mold
by
introducing
zinc
acetyl
acetone.
This
work
provides
promising
route
to
produce
high-performance
biomass
derivatives.
Macromolecular Chemistry and Physics,
Journal Year:
2024,
Volume and Issue:
225(14)
Published: April 18, 2024
Abstract
Herein,
a
novel,
highly
branched
and
photoresponsive
polysiloxane
is
synthesized
studied.
The
polymer
photoconstructed
into
single‐chain
nanoparticle
loaded
with
Nile
Red
Metformin.
Through
the
photoreversible
[2+2]
mechanism
of
polymer's
pendant
coumarin
moieties,
nanoparticles
are
de‐crosslinked,
their
cargo
molecules
released.
A
study
kinetics
release
undertaken
in
different
solvents,
providing
insight
relationship
between
cargo's
molecular
structure
that
chain.
On
whole,
this
report's
introduces
new
controlled
cationic
ring‐opening
polymerization
concepts
while
first
example
based
on
polysiloxane.
ACS symposium series,
Journal Year:
2024,
Volume and Issue:
unknown, P. 225 - 248
Published: Nov. 1, 2024
Adhesives
are
versatile
materials
with
remarkable
capabilities
and
easy
curing
mechanisms.
They
find
extensive
usage
in
many
fields,
including
building
medicine.
An
urgent
need
exists
to
alternative,
more
sustainable
ways
access
raw
as
a
result
of
the
rising
demand
for
petroleum-based
goods
resulting
damage
environment.
Because
they
use
fossil
fuels-derived
chemicals,
which
aren't
exactly
green
energy
source,
glue
businesses
especially
hit
hard
by
this
fact.
Biopolymers
play
significant
role
area
include
cellulose,
vegetable
oils,
starch,
lignin,
proteins,
among
other
materials.
The
synthetic
processes
still
should
be
simplified,
biopolymer
stability
performance
these
novel
bio-based
adhesive
formulations
improved.
Substantial
improvements
innovations
required.
With
any
luck,
eco-friendly
approach
will
eventually
lead
complete
or
near-total
substitution
non-renewable
feedstock.
This
chapter
looks
at
main
points
common
adhesives
gives
an
honest
assessment
their
pros
cons.
Novel
environmentally
friendly
alternatives,
those
based
on
lignocellulose,
also
brought
light,
together
difficulties
encounter.
