Chemical Reviews,
Journal Year:
2022,
Volume and Issue:
123(2), P. 701 - 735
Published: Dec. 28, 2022
Self-healing
materials
open
new
prospects
for
more
sustainable
technologies
with
improved
material
performance
and
devices'
longevity.
We
present
an
overview
of
the
recent
developments
in
field
intrinsically
self-healing
polymers,
broad
class
based
mostly
on
polymers
dynamic
covalent
noncovalent
bonds.
describe
current
models
mechanisms
discuss
several
examples
systems
different
types
bonds,
from
various
hydrogen
bonds
to
The
advances
indicate
that
most
intriguing
results
are
obtained
have
combined
These
demonstrate
high
toughness
along
a
relatively
fast
rate.
There
is
clear
trade-off
relationship
between
rate
mechanical
modulus
materials,
we
propose
design
principles
toward
surpassing
this
trade-off.
also
applications
summarize
challenges
field.
This
review
intends
provide
guidance
intrinsic
required
properties.
Advanced Science,
Journal Year:
2021,
Volume and Issue:
8(21)
Published: Sept. 14, 2021
Self-healing
soft
electronic
material
composition
is
crucial
to
sustain
the
device
long-term
durability.
The
fabrication
of
self-healing
electronics
exposed
high
moisture
environment
a
significant
challenge
that
has
yet
be
fully
achieved.
This
paper
presents
novel
concept
water-assisted
room-temperature
autonomous
mechanism
based
on
synergistically
dynamic
covalent
Schiff-based
imine
bonds
with
hydrogen
bonds.
supramolecular
polymer
(WASHP)
films
possess
rapid
kinetic
behavior
and
stretchability
due
reversible
dissociation-association
process.
In
comparison
pristine
polymer,
WASHP
demonstrates
favorable
mechanical
performance
at
room
temperature
short
time
1
h;
furthermore,
it
achieves
tensile
strain
9050%,
efficiency
95%,
toughness
144.2
MJ
m-3
.
As
proof
concept,
versatile
WASHP-based
light-emitting
touch-responsive
(WASHP-LETD)
perovskite
quantum
dot
(PeQD)-based
white
LED
backlight
are
designed.
WASHP-LETD
deformation
under
pressure,
bending,
strain,
whereas
WASHP-PeQDs
exhibit
outstanding
stability
even
over
period
exceeding
one
year
in
boiling
water
environment.
provides
mechanically
robust
approach
for
producing
eco-friendly,
economical,
waterproof
e-skin
components.
Green Chemistry,
Journal Year:
2021,
Volume and Issue:
23(17), P. 6349 - 6355
Published: Jan. 1, 2021
This
work
introduces
dual
dynamic
covalent
bonds
in
the
network
of
a
non-isocyanate
polyurethane
prepared
using
cyclic
carbonate
derived
from
CO
2
to
realize
self-healing
and
reprocessing
at
low
temperature
(50
°C)
or
under
UV
light.
Nanoscale,
Journal Year:
2023,
Volume and Issue:
15(14), P. 6505 - 6520
Published: Jan. 1, 2023
To
meet
more
application
requirements,
improving
mechanical
properties
and
self-healing
efficiency
has
become
the
focus
of
current
research
on
PU.
The
competitive
relationship
between
ability
cannot
be
avoided
by
a
single
method.
address
this
problem,
growing
number
studies
have
combined
dynamic
covalent
bonding
with
other
methods
to
construct
PU
structure.
This
review
summarizes
recent
materials
that
combine
typical
bonds
methods.
It
mainly
includes
four
parts:
hydrogen
bonding,
metal
coordination
nanofillers
multiple
bond
bonding.
advantages
disadvantages
different
their
significant
role
in
networks
are
analyzed.
At
same
time,
possible
challenges
directions
future
discussed.
ACS Applied Polymer Materials,
Journal Year:
2023,
Volume and Issue:
5(2), P. 1302 - 1311
Published: Jan. 11, 2023
It
is
still
challenging
and
attractive
to
prepare
polyurethane
(PU)
materials
with
excellent
self-healing
ability
while
improving
their
mechanical
properties
high
ductility.
Here,
a
multifunctional
linear
PU
supramolecular
elastomer
was
successfully
prepared
by
introducing
cross-linking
network
of
quadruple
hydrogen
bonds
thermo-reversible
Diels–Alder
rigid
ring
structure
the
backbone.
The
results
exhibited
that
obtained
displayed
tensile
strength
(6.30
MPa),
elongation
(1957.84%),
toughness
(84.48
MJ/m3),
repair
efficiency
(93.33%).
from
5-(2-hydroxyethyl)-6-methyl-2-aminouracil
conjugated
reaction
4,4′-bismaleimide
diphenylmethane
furfuryl
alcohol,
due
its
synergetic
dual
reversible
bonds,
formed
possessed
mechanical,
self-healing,
shape
recovery,
reprocessing
properties.
can
be
used
as
substrate
for
flexible
conductive
or
composite
material
materials,
which
self-repair
many
times
when
surface
damaged,
recycled,
greatly
improve
service
life
material.
Therefore,
high-performance
have
potential
applications
in
several
fields.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(8), P. 3437 - 3450
Published: Feb. 10, 2023
Self-healing
polymers
render
their
life
cycle
more
sustainable
by
recovering
properties
upon
healing.
Intrinsic
self-healing
can
be
recycled,
which
further
reduces
waste
production.
Yet,
despite
these
intrinsic
benefits,
several
sustainability
issues
remain
largely
neglected,
including
the
use
of
fossil-derived
materials,
hazardous
chemicals,
and
material
management
at
end
its
life.
Herein,
we
report
a
series
castor
oil-based
elastomers
that
account
for
challenges
show
improved
mechanical
capabilities
compared
to
other
bio-based
materials.
Castor
oil
was
functionalized
using
simple,
one-pot,
solventless
synthesis
from
renewable
resources
cross-linked
Diels–Alder
cycloaddition.
They
reprocessed
recycled
or
hydrolytically
degraded
service
The
materials
tuned
(Young's
modulus
0.5–20
MPa),
with
fracture
strain
up
487%.
A
100%
could
already
recovered
after
just
60
s
room
temperature
75%
24
h.
By
taking
advantage
properties,
soft
pneumatic
gripper
has
been
developed,
capable
healing
autonomously,
is
fully
recyclable
degradable.
Hence,
provide
alternative
robotic
applications
in
general.
Progress in Polymer Science,
Journal Year:
2024,
Volume and Issue:
152, P. 101816 - 101816
Published: March 26, 2024
Permanent
polymer
networks
present
an
important
sustainability
challenge.
Irreversible
covalent
crosslinks
impart
these
materials
excellent
mechanical
properties,
thermal
and
chemical
resistance,
yet
also
render
them
difficult
to
repair
recycle.
Self-healing
mechanisms
can
extend
the
lifetime
of
thermosets
elastomers,
improving
their
durability
making
lifecycle
more
sustainable.
In
addition
extension,
this
paper
reviews
self-healing
polymers
from
a
holistic
point
view.
The
entire
is
critically
assessed
with
reference
green
chemistry
principles
sustainable
development.
relation
between
chemistries
aspects
each
phases
are
discussed,
starting
feedstocks,
monomer
functionalisation
synthesis,
processing
manufacturing
as
well
end-of-life
considerations,
i.e.
recycling
or
(bio)degradation.
review
provides
toolbox
for
development
thermosets,
elastomers
composites.
It
utmost
importance
consider
materials,
derived
products
–
by
extension
any
material
product.
ability
often
related
recyclability
should
primarily
reduce
amount
new
that
necessary
fulfill
societal
needs,
extending
maximizing
reprocessing
into
products.
Increasing
healing
efficiency
number
cycles
improves
overall
environmental
impact
relative
extended
service
lifetime.
Renewable
resources
biomass,
processes
waste
streams
be
first
choice
create
polymers.
Finally,
biodegradability
considered
complementary
scenario
upon
accidental
loss
environment,
provided
biodegradation
does
not
start
under
prospected
use
conditions
products,
but
postponed
until
contact
stimuli
in
environment.
