Polymer Composites,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 27, 2025
Abstract
Additive
manufacturing
elastomers
are
highly
favored
for
their
significant
potential
applications
in
the
field
of
wearable
electronics.
However,
there
still
limited
photocured
that
can
satisfy
requirements
printability
and
high
performance
vat
photopolymerization
(VPP)
3D
printing.
In
this
study,
a
class
photosensitive
polyurethane
acrylate
was
designed
synthesized.
Isophthalic
dihydrazide
with
hydrazide
group
chosen
as
chain
extender.
The
reaction
isocyanate
to
generate
acylsemicarbazide
(ASCZ)
could
provide
abundant
strong
hydrogen
bonds
crosslinked
network
elastomer,
which
significantly
affects
state
microphase
separation
elastomer.
It
is
discovered
ASCZ
may
improve
elastomer's
mechanical
characteristics.
This
allows
polyurethane's
tensile
strength
strain
at
break
reach
maximum
8.9
±
0.3
MPa
460%
17%,
respectively,
demonstrating
exceptional
resilience
fatigue
resistance.
Furthermore,
photocurable
elastomer
containing
Lithium
bis((trifluoromethyl)sulfonyl)azanide
conductive
material
compatible
VPP‐based
digital
light
processing
technology,
allowing
resolution
be
50
μm.
not
only
customize
manufacture
sensing
equipment
but
also
accurately
sensitively
monitor
human
movement
signals.
Highlights
has
transmittance
92%.
bond
endows
good
tear
resistance
(79.9
kJ/m
2
).
elongation
470%.
residual
under
100%
15%,
showing
elasticity.
sensor
prepared
by
wide
working
range.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(38)
Published: May 19, 2024
Abstract
Flexible
and
stretchable
ion‐conductive
elastomers
have
shown
promising
applications
in
wearable
flexible
sensor
devices,
biopotential
detection,
electroluminescent
other
areas.
However,
the
currently
employed
gel‐based
materials
encounter
issues
such
as
solvent
volatilization
or
leakage.
Herein,
there
is
an
urgent
requirement
to
develop
a
solid‐state
ionic
conductor
material
that
both
safe
reliable,
free
from
of
liquid
Here,
study
reports
elastomer
with
excellent
mechanical
properties
high
conductivity
based
on
synergistic
strategy
multiple
interaction
forces.
The
ion−conductive
exhibits
(1.42
×
10
−4
S
cm
−1
at
25
°C),
superior
stretchability
(≈1550%
elongation)
strength
(1.48
MPa).
Moreover,
resilience
possesses
self‐healing
ability.
sensor,
prepared
comprehensive
performance,
not
only
demonstrates
strain
sensitivity
but
also
captures
high‐quality
epidermal
signals
human
body
detection.
Additionally,
can
serve
electrode
devices
for
applications.
It
believed
provide
novel
opportunities
advancement
soft
ionotronics.
Macromolecules,
Journal Year:
2024,
Volume and Issue:
57(7), P. 3047 - 3057
Published: March 20, 2024
High-strength
elastomers
capable
of
room-temperature
healing
hold
promising
applications
in
flexible
electronics.
However,
the
unwanted
spontaneous
merging
for
incorrect
contact
(such
as
folding
or
stacking)
during
use
process
will
prevent
widespread
promotion
these
elastomers.
By
simulating
strengthening
and
processes
natural
skin,
a
series
robust
kinetically
stable
poly(urea-urethane)
(PUU)
were
synthesized
by
integrating
three
reversible
interactions,
including
dynamic
disulfide
bonds,
hierarchical
hydrogen
strain-induced
crystallization,
into
polymer
chains.
Among
elastomers,
PUU-DTDA9
exhibits
high
strength
(40
MPa),
exceptional
transient
self-healing
ability
(97.71%
efficiency
tensile
strength),
good
kinetic
stability
(no
occurs
at
area
after
it
is
kept
room
temperature
24
h).
The
exchangeability
bonds
was
locked
with
moderate
density
chains,
ensuring
elastomer
under
service
conditions.
This
prevents
undesired
efficiently
while
gaining
an
excellent
triggered
ethanol
temperature.
Furthermore,
to
simulate
ion
transport
capabilities
mixed
ionic
liquid
prepare
sensitive
multifunctional
skin
(18
MPa)
ability,
showing
potential
high-performance
wearable
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 22, 2025
Abstract
Nowadays,
much
attention
is
paid
to
the
development
of
high‐performance
and
multifunctional
materials,
but
it
still
a
great
challenge
obtain
polymer
materials
with
high
mechanical
properties,
self‐healing
multifunctionality
in
one.
Herein,
an
innovative
strategy
proposed
satisfactory
waterborne
polyurethane
(PMWPU‐Bx)
by
situ
anchoring
3‐aminophenylboronic
acid
(3‐APBA)
pyrene‐capped
(PMWPU)
via
supramolecular
interactions.
The
multiple
functional
sites
inherent
3‐APBA
can
produce
interactions
groups
on
PMWPU,
promoting
aggregation
hard
domains
network,
which
confers
PMWPU‐Bx
strength
(7.9
MPa)
modulus
(243.2
MPa).
Meanwhile,
dynamic
natures
boronic
ester
bonds
formed
condensation
endow
efficiency.
Additionally,
exhibits
fluorescence
tunability
due
controlled
π–π
stacking.
In
this
research,
molecules
onto
polymers
through
synchronously
achieves
performance
multi‐functionality
polyurethanes,
also
broadens
their
potential
applications
fields
optical
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