Angewandte Chemie,
Journal Year:
2024,
Volume and Issue:
136(45)
Published: July 20, 2024
Abstract
Developing
functional
adhesives
combining
strong
adhesion,
good
recyclability
and
diverse
harsh‐condition
adaptability
is
a
grand
challenge.
Here,
we
introduce
general
dendritic
molecule
doping
strategy
to
activate
commercial
polymers
into
new
family
of
supramolecular
integrating
high
adhesion
strength,
ultralow
temperature,
water
resistant
multi‐reusable
properties.
Our
method
involves
rational
design
rigid‐flexible
coupled
molecule—M
4
C
8
OH
as
versatile
dopant,
while
simple
M
can
modulate
internal
external
non‐covalent
interaction
enable
H‐bonding
enhanced
interchain
cross‐linking
for
tough
cohesion
along
with
interphase
interaction.
This
endows
20
wt
%
OH‐doped
polycaprolactone
(PCL)
(PCL‐M
OH)
improved
strength
on
various
substrates
the
maximum
increase
up
2.87
times
that
PCL.
In
particular,
strengths
PCL‐M
polymethyl
methacrylate
at
25
°C
−196
reach
4.67
3.58
MPa—1.9
2.3
those
PCL
superior
most
reported
adhesives.
also
displays
markedly‐improved
multi‐usability
tolerance
against
temperature
wet
environments.
Mechanism
studies
reveal
crucial
role
molecular
structures
toward
adhesion.
be
expanded
other
polymer
matrices,
yielding
ACS Materials Letters,
Journal Year:
2023,
Volume and Issue:
5(10), P. 2621 - 2628
Published: Aug. 28, 2023
One-step
preparation
of
supramolecular
eutectogels
(SEGs)
with
water
resistance,
transparency,
underwater
self-healing,
self-adhesion,
and
full
recyclability
using
a
simple
green
process
is
intriguing
but
also
challenging.
Here,
novel
SEG
prepared
by
in
situ
ring-opening
polymerization
thioctic
acid
(TA)
polymerizable
hydrophobic
deep
eutectic
solvent
(DES).
Further
depolymerization
poly(TA)
achieved
synergistic
interaction
between
the
monomer
DES
components,
resulting
exhibiting
highly
optical
extreme
stretchability,
recyclability.
Moreover,
multiple
dynamic
interactions
enable
self-healing
self-adhesive
processes
to
be
easily
realized
even
underwater.
Given
these
comprehensive
capabilities,
SEGs
are
used
as
external
encapsulation
layers
for
liquid
metals
prepare
stretchable
composite
wires
electromyographic
signal
monitoring.
The
methodology
provides
new
route
recyclable
integrated
electronic
components
adhesives.
ACS Applied Materials & Interfaces,
Journal Year:
2023,
Volume and Issue:
15(30), P. 36759 - 36770
Published: July 21, 2023
The
development
of
degradable,
cost-effective,
and
eco-friendly
ionic
conductive
gels
is
highly
required
to
reduce
electronic
waste
originating
from
flexible
devices.
However,
biocompatible,
tough,
durable
are
challenging
achieve.
Herein,
we
develop
a
facile
strategy
for
the
design
synthesis
degradable
tough
eutectogels
by
integrating
an
electrostatically
driven
supramolecular
network
composed
branched
polyacrylic
acid
(PAA)
monoethanolamine
(MEA)
into
green
deep
eutectic
solvent
with
chitosan
quaternary
ammonium
salt
(CQS).
specially
designed
PAA/MEA/CQS
present
multiple
desired
properties,
including
high
transparency,
widely
adjustable
mechanical
resilience,
reliable
adhesiveness,
excellent
self-healing
ability,
good
conductivity,
remarkable
anti-freezing
performance,
antibacterial
properties.
dynamic
reversible
interactions
not
only
significantly
enhance
properties
but
also
enable
fast
degradation,
addressing
dilemma
between
strength
degradability.
More
importantly,
biocompatible
multifunctional
skin
successfully
fabricated
based
on
eutectogel,
exhibiting
sensitivity,
wide
sensing
range,
rapid
response
speed
toward
strain,
pressure,
temperature.
Thus,
this
study
offers
promising
fabricating
eutectogels,
which
show
great
potential
as
high-performance
skins
next-generation
wearable
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(22)
Published: Jan. 6, 2024
Abstract
Flexible
wearable
and
implantable
devices
are
contributing
to
the
healthcare
field
by
enabling
intuitive
interfaces
with
tissues
of
human
body
through
their
thin
form
factors,
which
enable
more
accurate
monitoring
signals
effective
delivery
therapy.
The
development
such
is
accompanied
an
increasing
interest
in
strategies
technologies
for
conformally
fixing
adhering
flexible
biomedical
place
acquire
high‐quality
biosignals
over
a
long
period,
even
subtle
movements
target.
Owing
various
mechanical
properties
wet
or
dynamic
environments
tissues,
it
necessary
use
different
adhesion
that
consider
biocompatibility
cohesive
each
case.
This
paper
provides
in‐depth
analysis
recent
bio‐adhesives
practical
applications
classifying
them
into:
1)
Conventional
Fixation,
2)
Mechanical
3)
Chemical
Adhesion,
based
on
mechanism,
4)
Functional
Adhesion
5)
Biomimetic
unique
properties.
Furthermore,
principles
detailed
mechanisms
strategy
design
characteristics
bioadhesives
thoroughly
reviewed
provide
valuable
insights
overall
summary
prospects
challenges
future
technology.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(15), P. 8497 - 8527
Published: Jan. 1, 2024
Solvents
are
essential
for
chemical
synthesis
and
material
preparation;
however,
traditional
solvents
face
challenges
in
meeting
safety
sustainability
standards.
Macromolecular Rapid Communications,
Journal Year:
2023,
Volume and Issue:
44(12)
Published: March 23, 2023
The
emergence
of
hydrophobic
ionogels
composed
polymer
matrices
and
ionic
liquids
has
drastically
broadened
the
applications
devices,
especially
for
underwater
explorations.
Compared
with
traditional
ionogels,
ones
are
capable
achieving
long-term
stability
in
ambient
aqueous
environments.
In
this
review,
latest
research
developments
intrinsically
summarized,
particular
emphases
placed
on
materials,
mechanisms
applications.
basic
issues
about
including
material
systems,
dynamic
gelation
bonds
network
structures
elucidated.
up-to-date
advent
ambient/underwater
concerning
adhesion,
self-healing,
sensing
comprehensively
summarized.
Special
attention
is
paid
to
scenarios
considering
rapid
development
marine
explorations
intrinsic
properties
ionogels.
Finally,
current
challenges
immediate
opportunities
emerging
yet
fast-developing
field
discussed.
