Journal of Polymer Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
ABSTRACT
A
derivative
based
on
9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide
and
maleimide
units
with
terminal
hydroxyl
group
(DH)
was
synthesized
incorporated
in
poly(lactic
acid)
(PLA).
The
properties
mechanism
of
PLA/DH
composites
were
investigated.
results
showed
that
PLA
under
10
wt%
DH
load
achieved
vertical
combustion
test
(UL‐94)
V‐0
rating
an
increased
limiting
oxygen
index
(LOI)
27.2%
a
15.8%
decrease
peak
heat
release
rate.
prominent
flame
retardant
efficiency
attributed
to
its
excellent
inhibition
diluting
effects
gaseous
phase
as
well
certain
cross‐linked
structure
the
condensed
phase.
Specifically,
elongation
at
break
PLA/DH‐7.5
by
17.6%
comparison
pure
PLA.
displayed
enhanced
interaction
good
compatibility
PLA,
thus
endowing
comprehensive
performances
As
result,
combination
phosphaphenanthrene
provides
facile
effective
method
improve
retardancy
mechanical
Molecules,
Journal Year:
2025,
Volume and Issue:
30(3), P. 569 - 569
Published: Jan. 27, 2025
To
fulfill
the
current
circular
economy
concept,
academic
and
industrial
communities
are
devoting
significant
efforts
to
plastic
materials’
end-of-life.
Unlike
thermoplastics,
which
easy
recover
re-valorize,
recycling
thermosets
is
still
difficult
challenging.
Conversely,
because
of
their
network
structure,
thermosetting
polymer
systems
exhibit
peculiar
features
that
make
these
materials
preferable
for
several
applications
where
high
mechanical
properties,
chemical
inertness,
thermal
stability,
among
others,
demanded.
In
this
view,
vitrimers
have
quite
recently
attracted
attention
scientific
community,
as
they
can
form
dynamic
covalent
adaptive
networks
provide
properties
typical
while
keeping
possibility
being
processed
(and,
therefore,
mechanically
recycled)
beyond
a
certain
temperature.
This
review
aims
an
overview
vitrimers,
elucidating
most
recent
advances
posing
some
perspectives
forthcoming
years.
Fire,
Journal Year:
2025,
Volume and Issue:
8(2), P. 64 - 64
Published: Feb. 5, 2025
As
the
demand
for
high-performance
polymers
broadens,
polyurethane
(PU)
with
various
chemical
modifications
have
attracted
attention.
This
review
explores
structure
and
functional
variations
of
PUs.
PUs
are
used
in
a
variety
fields,
ranging
from
aerospace
engineering
to
daily
necessities,
show
remarkable
safety
adaptability
through
designable
synthesis
processes.
study
is
divided
into
four
main
parts:
(1)
structure,
covering
PU
base
modification
additive
compounds;
(2)
performance,
studying
physical
properties
thermal
degradation
processes;
(3)
application,
evaluating
commercial
potential
polymers;
(4)
flame
retardancy,
analyzing
five
established
flame-retardant
mechanisms.
The
last
part
discusses
how
can
meet
sustainable
development
goals
by
replacing
petroleum-based
materials
green
materials.
By
emphasizing
non-petroleum
resources
novel,
strategies,
this
conducts
guidance
safe
environmentally
friendly
application
future.
