ACS Applied Materials & Interfaces,
Journal Year:
2024,
Volume and Issue:
16(42), P. 57769 - 57777
Published: Oct. 9, 2024
The
biocompatibility
and
adaptability
of
hydrogels
make
them
ideal
candidates
for
use
as
artificial
tendons
muscles
in
clinical
applications,
where
both
muscle-like
strength
low
hysteresis
are
essential.
However,
achieving
a
balance
between
high
remains
significant
challenge.
Herein,
we
demonstrated
self-assembly
process
heterogeneous
to
meet
the
dilemma.
And
composed
hydrophilic
hydrophobic
polymers.
network
absorbs
water,
causing
phase
separation
into
water-rich
water-poor
phase,
while
polymers
entanglement
arrest
separation.
Our
results
that
these
achieve
remarkable
mechanical
properties,
with
848.8
kPa,
energy
loss
19.6
kJ/m3,
minimal
(0.046)
during
loading–unloading
cycles.
reinforcing
mechanisms
underlying
properties
attributed
crystallization,
molecular
entanglement,
chain
rearrangement
induced
by
stretching.
Furthermore,
combination
networks
is
exceedingly
rare
reported
hydrogels.
Small,
Journal Year:
2024,
Volume and Issue:
20(43)
Published: June 23, 2024
Abstract
Ionogel
has
recently
emerged
as
a
promising
ionotronic
material
due
to
its
good
ionic
conductivity
and
flexibility.
However,
low
stretchability
significant
hysteresis
under
long‐term
loading
limit
their
mechanical
stability
repeatability.
Developing
ultralow
ionogels
with
high
is
of
great
significance.
Here,
simple
effective
strategy
developed
fabricate
highly
stretchable
ultralow‐hysteresis
noncovalent
cross‐linked
based
on
phase
separation
by
3D
printing
2‐hydroxypropyl
acrylate
(HPA)
in
1‐butyl‐3‐methylimidazolium
tetrafluoroborate
(BMIMBF
4
).
Ingeniously,
the
sea‐island
structure
physically
network
constructed
smaller
nanodomains
larger
nanodomain
clusters
significantly
minimizes
energy
dissipation,
endowing
these
remarkable
(>1000%),
ultra‐low
(as
0.2%),
excellent
temperature
tolerance
(−33–317
°C),
extraordinary
(up
1.7
mS
cm
−1
),
outstanding
durability
(5000
cycles).
Moreover,
formation
nanophase
cross‐linking
structure,
as‐prepared
exhibit
unique
thermochromic
multiple
photoluminescent
properties,
which
can
synergistically
be
applied
for
anti‐counterfeiting
encrypting.
Importantly,
flexible
thermo‐mechano‐multimodal
visual
sensors
strain
sensing
stable
reproducible
electrical
response
over
20
000
cycles
are
fabricated,
showing
optical
output
performances.
Small Methods,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 12, 2024
Electrically
conductive
hydrogels
are
highly
hydrated
3D
networks
consisting
of
a
hydrophilic
polymer
skeleton
and
electrically
materials.
Conductive
have
excellent
mechanical
electrical
properties
further
extensive
application
prospects
in
biomedical
treatment
other
fields.
Whereas
numerous
been
fabricated,
set
general
principles,
that
can
rationally
guide
the
synthesis
using
different
substances
fabrication
methods
for
various
scenarios,
remain
central
demand
hydrogels.
This
paper
systematically
summarizes
processing,
performances,
applications
hydrogels,
discusses
challenges
opportunities
this
field.
In
view
shortcomings
high
conductivity,
matchable
properties,
as
well
integrated
devices
machines,
it
is
proposed
to
synergistically
design
process
with
complex
surroundings.
It
believed
will
present
fresh
perspective
research
development
expand
Journal of Materials Chemistry C,
Journal Year:
2024,
Volume and Issue:
12(20), P. 7351 - 7358
Published: Jan. 1, 2024
This
work
proposes
a
strategy
for
replacing
chemical/physical
cross-linking
with
flexible
and
deformable
micro-domains
to
fabricate
high-performance
ionogels
combined
high
stretchability,
toughness,
low
hysteresis
notch
insensitivity.
Soft Matter,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
This
review
explores
network
designs
that
address
the
trade-off
between
toughness
and
elasticity,
offering
strategies
to
develop
materials
with
both
high
fracture
resistance
low
hysteresis
for
advanced
applications.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 10, 2025
Abstract
Physical
hydrogels,
three-dimensional
polymer
networks
with
reversible
cross-linking,
have
been
widely
used
in
many
developments
throughout
the
history
of
mankind.
However,
physical
hydrogels
face
significant
challenges
applications
due
to
wound
rupture
and
low
elasticity.
Some
self-heal
wounds
strong
ionic
bond
network
but
struggle
immediately
recover
during
cyclic
operation.
In
light
this,
a
strategy
that
achieves
both
self-healing
elasticity
has
developed
through
construction
topological
hydrogen-bonding
domains.
These
domains
are
formed
by
entangled
button-knot
nanoscale
colloids
polyacrylic-acid
(PAA)
an
ultra-high
molecular
weight
up
240,000,
further
guiding
polymerization
polyacrylamide
reinforce
hydrogel
network.
The
key
for
such
is
self-assembly
PAA
fibers,
approximately
4
nm
diameter,
interconnecting
possess
high
strength,
simultaneously
acting
as
elastic
scaffold
reversibly
cross-linking
near
wounds.
completely
recovers
mechanical
properties
within
5
h
at
room
temperature
consistently
maintains
>85%
toughness
loading.
After
swelling,
96.1
wt%
water
content
zero
residual
strain
cycling.
Such
not
only
provides
model
system
microstructural
engineering
also
broadens
scope
potential
applications.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 31, 2025
Abstract
Although
healable
waterborne
polymers
have
attracted
significant
attention
in
recent
years
due
to
their
environmentally
friendly
properties,
the
inferior
mechanical
properties
still
hinder
further
propagation.
Inspired
by
micro‐structure
of
pangolin
scales,
herein,
a
novel
supramolecular
polymer
network
(SWPN)
named
SWPUMA‐SPPEK10
is
proposed
this
study.
This
fabricated
complexing
sulfonated
poly(phthalazinone
ether
ketone)
(SPPEK)
with
acylsemicarbazide
(ASC)
containing
cationic
polyurethane
(SWPUMA)
an
aqueous
solution
followed
hot‐pressing
process.
Due
synergistic
effects
ASC,
electrostatic
interactions,
and
SPPEK
nanoparticles,
exhibited
remarkable
tensile
strength
55.19
MPa,
toughness
305.93
MJ
m
−3
.
The
rich
dynamic
interactions
within
chains
also
imparted
it
excellent
healability
recyclability.
biomimetic
structural
design
provides
new
insight
for
constructing
high‐performance
robust
recyclability,
which
may
play
critical
role
mitigating
global
environmental
pollution.
