ACS Applied Polymer Materials,
Journal Year:
2023,
Volume and Issue:
5(11), P. 9543 - 9554
Published: Oct. 18, 2023
In
this
work,
an
eco-friendly
chitosan-based
biomass
macromolecular
antioxidant
containing
double
bonds
and
polyphenol
structure
(COS-UC-GA),
prepared
by
coupling
10-undecenoyl
chloride
(UC)
gallic
acid
(GA)
onto
chitosan
(COS),
was
employed
as
for
styrene–butadiene
rubber
(SBR)/silica
composites.
Its
effects
on
the
anti-aging
properties
of
SBR/silica
composites
were
systematically
explored.
The
corresponding
small
molecular
organic
compound
(GA),
commercial
butylated
hydroxytoluene
(BHT),
N-isopropyl-N′-pheny-p-phenyl-ene
diamine
(4010NA)
used
control
samples.
results
accelerated
thermal-oxidative
aging
test,
crosslinking
density
thermogravimetric
(TG)
test
demonstrated
that
COS-UC-GA
can
significantly
enhance
properties,
thermal
stability,
apparent
activation
energy
(E)
Moreover,
extraction
resistance
indicated
present
better
migration
in
compared
to
GA,
BHT,
4010NA.
superior
antioxidative
originated
from
synergistic
between
amine
or
amide
groups
well
outstanding
volatilization
COS-UC-GA.
be
a
promising
green
candidate
industry
replace
traditional
antioxidants.
Biomacromolecules,
Journal Year:
2023,
Volume and Issue:
24(11), P. 4553 - 4567
Published: Oct. 9, 2023
The
biomass
lignin
is
the
only
large-volume
renewable
feedstock
that
composed
of
aromatics
but
has
been
largely
underutilized
and
sought
for
valorization
as
a
value-added
material.
Recent
research
highlighted
promising
alternative
to
traditional
petrol-based
reinforcements
functional
additives
rubber
composites.
This
review
summarized
recent
advances
in
functionalization
variety
composites,
well
compounding
techniques
effectively
dispersing
within
matrix.
Significant
progress
achieved
development
high-performance
advanced
rubber/lignin
composites
through
carefully
designing
structure
lignin-based
optimization
interfacial
morphologies.
Review
discussed
effect
on
composite
properties,
including
mechanical
reinforcement,
dynamic
antiaging
performance,
oil
resistance,
also
stimuli-responsive
performance
detail.
A
critical
analysis
future
presented
concluding
remarks.
