Abstract
Presponsive
smart
organic
crystalline
materials
(SOCMs)
have
emerged
as
an
attractive
research
topic
because
of
their
many
advantages,
such
well-defined
structures,
high
structural
order,
and
the
resulting
fast
response
speeds,
well
energy
conversion
efficiency
remarkable
dynamic
optical/electronic
changes
or
mechanical
responses.
In
this
review,
we
discuss
recent
developments
in
SOCMs
based
on
topochemistry
beyond
coordination
compounds,
which
include
[2
+
2]
[4
4]
photocycloaddition
anthracene
olefin
derivatives
1,
4-addition-polymerization
diacetylenes.
The
detailed
design
principles
mechanisms
associated
with
behavior,
photoresponsive
physical
chemical
properties
(i.e.,
photochromism,
photo
fluorochromism,
photodeformation),
structure–property
relationships
are
discussed,
along
advanced
applications
exciting
fields
intelligent
microrobots,
encryption,
sensors,
photoactuators,
data
storage,
displays.
Finally,
summarize
current
major
challenges
future
opportunities
field.
We
expect
that
review
will
inspire
more
innovative
into
development
crystal
fast,
accurate,
reversible
responses,
promote
further
devices.
Green Chemistry,
Год журнала:
2024,
Номер
26(12), С. 6857 - 6885
Опубликована: Янв. 1, 2024
Amongst
all
synthetic
polymers
used
in
the
clothing
industry,
polyethylene
terephthalate
(PET)
is
most
widely
polyester,
its
fibres
representing
half
total
PET
global
market
(in
comparison
bottle
being
less
than
a
third).
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(22)
Опубликована: Март 16, 2024
Recycling
of
carbon
fiber-reinforced
polymer
composites
(CFRCs)
based
on
thermosetting
plastics
is
difficult.
In
the
present
study,
high-performance
CFRCs
are
fabricated
through
complexation
aromatic
pinacol-cross-linked
polyurethane
(PU-AP)
thermosets
with
fiber
(CF)
cloths.
PU-AP
exhibit
a
breaking
strength
95.5
MPa
and
toughness
473.6
MJ
m
Nature Communications,
Год журнала:
2025,
Номер
16(1)
Опубликована: Март 12, 2025
Commodity
polymers
are
ubiquitous
in
our
society,
having
replaced
many
inorganic
and
metal-based
materials
due
to
their
versatile
properties.
However,
functionality
heavily
relies
on
the
addition
of
various
components
known
as
additives,
making
it
challenging
recycle
polymer
fraction
plastic
effectively.
Thus,
is
crucial
develop
efficient
chemical
recovery
strategies
for
commodity
additives
facilitate
direct
utilization
recovered
monomers
without
additional
purification.
Here,
we
a
strategy
co-upcycling
two
types
waste
polymers,
polycarbonate,
polyethylene
terephthalate
into
polyarylate,
high-performance
transparent
engineering
plastic.
By
incorporating
highly
active
metal-free
ionic
liquids
catalyst
methanolysis
two-stage
interface
polymerization
technique
with
variable
temperature
control,
successfully
prepare
polyacrylate
film
from
real
end-of-life
plastics
capping
agent
impurities
monomers.
These
exhibit
excellent
thermal
performance
(Tg
=
192.8
°C),
transmittance
(reach
up
86.73%),
flame-retardant
properties
(V-0,
UL-94),
equivalent
those
commercial
polyarylate
(U-100,
about
$10000/ton),
could
be
further
easily
close-loop
recycled.
Demonstrated
kilogram-scale
experiments
life
cycle
assessments,
this
approach
offers
low-carbon,
environmentally
friendly,
economically
feasible
pathway
upcycling
polymers.
Recycling
remains
presence
mixed
streams.
Here
authors
terephthalate,
ACS Materials Letters,
Год журнала:
2025,
Номер
unknown, С. 1250 - 1259
Опубликована: Март 4, 2025
As
an
ion-conductive
material,
multifunctional
ionogels
are
crucial
for
the
development
of
i-skin
materials.
However,
current
designs
face
significant
challenges
in
simultaneously
achieving
mechanical
properties,
along
with
self-healing
capabilities,
multimodal
sensing,
and
high
sensory
precision.
In
this
work,
we
propose
a
strategy
situ
electron
beam
irradiation-induced
copolymerization
highly
soluble
acrylic
acid
(AA)
poor-solubility
4-allyloxy-2-hydroxybenzophenone
(AHBP)
to
prepare
phase-separated
ionogels.
AHBP
not
only
enables
tunable
transparency
by
adjusting
degree
phase
separation
but
also
improves
properties
ionogel
modulating
soft/hard
domains
caused
solvent-rich
polymer-rich
phases.
Additionally,
efficiently
absorbs
UV
light
through
conformational
changes.
Combined
its
excellent
conductivity,
thermal
stability,
outstanding
self-adhesive
ionogel-based
demonstrates
sensing
capabilities
strain,
temperature,
pressure,
showing
great
potential
applications
wearable
strain
sensors
multisignal
arrays.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(22)
Опубликована: Март 16, 2024
Abstract
Recycling
of
carbon
fiber‐reinforced
polymer
composites
(CFRCs)
based
on
thermosetting
plastics
is
difficult.
In
the
present
study,
high‐performance
CFRCs
are
fabricated
through
complexation
aromatic
pinacol‐cross‐linked
polyurethane
(PU−AP)
thermosets
with
fiber
(CF)
cloths.
PU−AP
exhibit
a
breaking
strength
95.5
MPa
and
toughness
473.6
MJ
m
−3
contain
abundant
hydrogen‐bonding
groups,
which
can
have
strong
adhesion
CFs.
Because
high
interfacial
between
CF
cloths
thermosets,
CF/PU−AP
possess
tensile
>870
MPa.
Upon
heating
in
N
,
‐dimethylacetamide
(DMAc)
at
100
°C,
pinacols
be
cleaved,
generating
non‐destructive
linear
polymers
that
converted
to
elastomers.
The
elastomers
mechanically
robust,
healable,
reprocessable,
damage‐resistant
an
extremely
74.2
fracture
energy
149.6
kJ
−2
.
As
result,
dissociation
enables
recovery
reusable
elastomers,
thus
realizing
upcycling
composites.
