Substantial
interest
in
producing
thermosets
and
photoresponsive
chemicals
from
bioresources
is
garnering,
yet
moderate
performance
drastically
confines
their
applicability
electronic
packaging
material.
Herein,
several
thermosetting
epoxy
building
blocks
lignin-derived
monomers
(vanillyl
alcohol
eugenol)
were
constructed,
a
range
of
lignin-based
enhanced
photocurable
resins
further
developed
using
acrylic
acid
tetrahydrophthalic
anhydride
as
modifiers
by
an
one-pot
synthesis
method.
The
comprehensive
functionalized
was
systematically
investigated,
such
photopolymerization
behavior,
thermal–mechanical
properties,
electrical
breakdown
properties.
As
result,
the
biobased
resin
stemming
vanillyl
fulfilled
fascinating
heat
resistance
(Tg
≈
103.9
°C)
tensile
strength
(28.89
±
4.39
MPa).
Additionally,
inspired
tunable
chain-extending
tactic,
toughness
photo-cross-linked
films
intensified
insertion
flexible
alkyl
chain
segments
between
cross-linked
sites.
proof
concept,
formulated
EAAT
green
ink,
consisting
inorganic,
demonstrated
superior
patterning
ability
after
alkali
development.
rationally
designed
network
strengthening
mechanism
reported
here
offers
important
universal
strategy
for
significantly
enhancing
properties
materials.
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 12, 2025
Flexible
on-skin
electronics
present
tremendous
popularity
in
intelligent
electronic
skins
(e-skins),
healthcare
monitoring,
and
human-machine
interfaces.
However,
the
reported
e-skins
can
hardly
provide
high
permeability,
good
stretchability,
large
sensitivity
are
limited
long-term
stability
efficient
recyclability
when
worn
on
human
body.
Herein,
inspired
from
skin,
a
permeable,
stretchable,
recyclable
cellulose
aerogel-based
system
is
developed
by
sandwiching
screen-printed
silver
sensing
layer
between
biocompatible
CNF/HPC/PVA
(cellulose
nanofiber/hydroxypropyl
cellulose/poly(vinyl
alcohol))
aerogel
hypodermis
permeable
polyurethane
as
epidermis
layer.
The
displays
tensile
strength
of
1.14
MPa
strain
43.5%
while
maintaining
permeability.
embrace
appealing
performances
with
(gauge
factor
≈
238),
ultralow
detection
limit
(0.1%),
fast
response
time
(18
ms)
under
stimulus.
Owing
to
disconnection
reconnection
microcracks
layer,
both
strain/humidity
thermal
be
easily
achieved.
further
integrated
into
an
mask
for
patient-centered
power
supply
system,
switching
control
device,
wireless
Bluetooth
module.
Moreover,
prepared
enables
wearing
skin
without
irritation,
all
components
recaptured/reused
water.
This
material
strategy
highlights
potential
next-generation
permeability
environmental
friendliness.
SusMat,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 24, 2024
Abstract
Ionic
conductive
hydrogels
(ICHs)
prepared
from
natural
bioresources
are
promising
candidates
for
constructing
flexible
electronics
both
commercialization
and
environmental
sustainability
due
to
their
intrinsic
characteristics.
However,
simultaneous
realization
of
high
stiffness,
toughness,
conductivity,
multifunctionality
while
ensuring
processing
simplicity
is
extremely
challenging.
Here,
a
poly(ionic
liquid)
(PIL)‐macromolecule
functionalization
strategy
within
NaOH/urea
system
proposed
construct
high‐performance
versatile
polysaccharide‐based
ICHs
(e.g.,
cellulosic
ICHs).
In
this
strategy,
the
elaborately
designed
“soft”
(PIL
chains)
“hard”
(cellulose
backbone)
structures
as
well
dynamic
covalent
noncovalent
bonds
cross‐linked
networks
endow
hydrogel
with
mechanical
strength
(9.46
±
0.23
MPa
compressive
modulus),
exceptional
stretchability
(214.3%),
toughness
(3.64
0.12
MJ
m
−3
).
Ingeniously,
inherent
design
flexibility,
functional
compatibility
PILs,
exhibit
conductivity
(6.54
0.17
mS
cm
−1
),
self‐healing
ability
(94.5%
2.0%
efficiency),
antibacterial
properties,
freezing
resistance,
water
retention,
recyclability.
Interestingly,
extended
fabricate
diverse
various
polysaccharides,
including
agar,
alginate,
hyaluronic
acid,
guar
gum.
addition,
multimodal
sensing
(strain,
temperature,
humidity)
realized
based
on
stimulus‐responsive
characteristics
hydrogels.
This
opens
new
perspectives
biomass‐based
beyond.
