Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 17, 2024
Abstract
Improving
the
compatibility
between
high
concentration
metallic
ions
and
zwitterions
to
controllable
construction
of
coordination
bonds
is
critical
extremely
challenging.
Here,
a
facile
effective
strategy
fabricate
multifunctional
hydrogels
by
randomly
copolymerizing
halometallate
ionic
liquids
(ILs)
through
electron
beam
irradiation
reported.
Introducing
metal
into
ILs
can
balance
charges
establish
moderate
stable
cross‐linked
networks
with
zwitterions.
The
synergistic
effect
multiple
interactions
varying
strengths
endows
hydrogel
outstanding
stretchability,
compressive
strength,
rapid
response,
advanced
self‐healing
ability,
excellent
frost
resistance.
sensor
assembled
from
timely,
accurately,
stably
monitor
human
movement,
write
anti‐counterfeiting
remotely
transmit
Morse
code
signals.
Multiple
sensors
are
also
flexible
array
track
tactile
trajectory
detect
spatial
distribution
force.
Moreover,
obtained
displays
temperature
sensitivity
resistance
coefficient
−3.85%
°C
−1
at
25–40
°C,
which
tiny
changes
(0.1
°C).
Interestingly,
processed
effectively
modulate
transmissivity
salt
triggering
achieve
patterning.
Considering
structural
designability
ILs,
this
work
provides
new
insights
for
development
hydrogels.
Poly(ionic
liquid)s-based
ionogels
(PILs-IGs),
composed
of
ionic
liquids
solvents
and
poly(ionic
liquid)s
gelators,
have
gained
attention
as
promising
materials
due
to
their
impressive
properties,
including
good
conductivity,
remarkable
transparency,
adjustable
mechanical
characteristics,
robust
stability
in
challenging
environments.
There
been
notable
advancements
developing
flexible
sensors
based
on
PILs-IGs
recent
years.
This
article
provides
an
overview
the
progresses
sensor
technology
using
PILs-IGs.
After
briefly
introducing
fundamentals
PILs-IGs,
detailed
material
design,
working
principles,
sensing
performance
are
discussed.
Future
challenges
potential
solutions
provided
conclusion.
