Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(22)
Published: April 11, 2024
Abstract
Elastomers
are
widely
used
in
daily
life;
however,
the
preparation
of
degradable
and
recyclable
elastomers
with
high
strength,
toughness,
excellent
crack
resistance
remains
a
challenging
task.
In
this
report,
polycaprolactone‐based
poly(urethane‐urea)
elastomer
is
presented
mechanical
properties
by
optimizing
arrangement
hard
segment
clusters.
It
found
that
long
alkyl
chains
chain
extenders
lead
to
small
evenly
distributed
clusters,
which
beneficial
for
improving
properties.
Together
multiple
hydrogen
bond
structure
stress‐induced
crystallization,
obtained
exhibits
strength
63.3
MPa,
an
toughness
431
MJ
m
−3
outstanding
fracture
energy
489
kJ
−2
,
while
maintaining
good
recyclability
degradability.
believed
holds
great
promise
various
application
fields
it
contributes
development
sustainable
society.
Macromolecules,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 24, 2025
Owing
to
their
extensive
application
scope,
elastomers
that
combine
high
strength
and
excellent
self-healing
efficiency
have
always
attracted
significant
attention
are
still
a
contradiction.
In
this
study,
novel
PU
elastomer
was
prepared
by
combining
rigid
poly(amic
acid)
(PAA)
chain
segments
3,3-dithiodipropionic
dihydrazide
(DPH)
containing
sextuple
hydrogen-bonding
units
disulfide
bonds.
The
exhibited
tensile
of
50.1
MPa
toughness
144.2
MJ/m3.
PAA
serve
as
framework,
significantly
enhancing
the
mechanical
elastomer.
Meanwhile,
DPH
with
bonds
enabled
exhibit
an
96.1%
after
12
h
at
80
°C.
Additionally,
strong
reversible
cross-linking
arrays
in
endows
it
strength,
ability,
recyclability,
allowing
be
recycled
hot
pressing
dissolution.
Macromolecular Rapid Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 14, 2025
Abstract
Adhesives
are
indispensable
in
both
daily
household
applications
and
advanced
industrial
settings,
where
they
must
deliver
exceptional
bonding
performance.
Ionogel
adhesives,
which
feature
a
supporting
polymer
network
infused
with
ionic
liquid
(IL),
have
emerged
as
promising
candidates
due
to
their
unique
structural
functional
properties.
The
presence
of
species
within
ionogels
promotes
non‐covalent
interactions—such
bonds,
ion‐dipole
interactions,
hydrogen
bonding—that
enhance
cohesion
the
material
adhesion
various
substrates.
These
characteristics
make
ideal
for
that
require
robust
adhesive
performance,
especially
demanding
environments.
Despite
growing
interest
ionogel
comprehensive
review
latest
advancements
this
area
is
lacking.
This
paper
aims
fill
gap
by
categorizing
adhesives
based
on
composition
discussing
strategies
Additionally,
novel
designed
specific
highlighted.
Finally,
current
state
research
summarized,
offers
insights
into
challenges
future
opportunities
development
adhesives.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 12, 2025
Abstract
Elastomers
are
essential
for
a
variety
of
demanding
applications,
but
their
performance
is
significantly
compromised
under
harsh
conditions,
such
as
extremely
low
temperatures
and
serious
aging.
Herein,
novel
polyurethane
elastomer
(PFTA)
presented,
having
perfluoropolyether
the
soft
segment
catechol‐containing
molecules
synthesized
via
Schiff
base
reaction
chain
extender,
where
segments
confer
outstanding
low‐temperature
solvent
resistance
catechol
groups
provide
exceptional
anti‐aging
properties
to
material.
As
result,
obtained
achieves
an
ultralow
glass
transition
temperature
approximately
−115
°C,
demonstrating
remarkable
flexibility
at
temperatures,
even
in
liquid
nitrogen
environment,
possesses
good
aging
resistance.
These
results
highlight
that
combination
functionalization
provides
promising
platform
development
elastomers
suitable
extreme
environmental
aerospace
polar
exploration.
