Polymer Chemistry,
Год журнала:
2024,
Номер
15(35), С. 3519 - 3528
Опубликована: Янв. 1, 2024
Cobaltocenium-containing
block
copolymers
were
prepared
by
post-functionalization
using
a
quantitative
and
block-selective
hydroamination
reaction.
Resulting
metallopolymers
show
micro-phase
separated
morphology
tuneable
surface
hydrophilicity.
Environmental Science & Technology,
Год журнала:
2024,
Номер
unknown
Опубликована: Сен. 12, 2024
As
regulatory
standards
for
per-
and
polyfluoroalkyl
substances
(PFAS)
become
increasingly
stringent,
innovative
water
treatment
technologies
are
urgently
demanded
effective
PFAS
removal.
Reported
sorbents
often
exhibit
limited
affinity
frequently
hindered
by
competitive
background
substances.
Recently,
fluorinated
(abbreviated
as
fluorosorbents)
have
emerged
a
potent
solution
leveraging
fluorine-fluorine
(F···F)
interactions
to
enhance
selectivity
efficiency
in
This
review
delves
into
the
designs
applications
of
fluorosorbents,
emphasizing
how
F···F
improve
binding
affinity.
Specifically,
existence
results
removal
efficiencies
orders
magnitude
higher
than
other
counterpart
sorbents,
particularly
under
conditions.
Furthermore,
we
provide
detailed
analysis
fundamental
principles
underlying
elucidate
their
synergistic
effects
with
sorption
forces,
which
contribute
enhanced
efficacy
selectivity.
Subsequently,
examine
various
fluorosorbents
synthesis
fluorination
techniques,
underscore
importance
accurately
characterizing
through
advanced
analytical
methods,
emphasize
significance
this
interaction
developing
selective
sorbents.
Finally,
discuss
challenges
opportunities
associated
employing
techniques
guide
design
advocate
further
research
development
sustainable
cost-effective
interactions.
JACS Au,
Год журнала:
2024,
Номер
4(3), С. 919 - 929
Опубликована: Фев. 1, 2024
Solvation
and
ion
valency
effects
on
selectivity
of
metal
oxyanions
at
redox–polymer
interfaces
are
explored
through
in
situ
spatial-temporally
resolved
neutron
reflectometry
combined
with
large
scale
ab
initio
molecular
dynamics.
The
ReO4–
vs
MoO42–
for
two
redox-metallopolymers,
poly(vinyl
ferrocene)
(PVFc)
poly(3-ferrocenylpropyl
methacrylamide)
(PFPMAm)
is
evaluated.
PVFc
has
a
higher
Re/Mo
separation
factor
compared
to
PFPMAm
0.6
V
Ag/AgCl.
In
techniques
show
that
both
swell
the
presence
(having
solvation
PFPMAm),
but
do
not
contact
MoO42–.
Ab
simulations
suggest
maintains
well-defined
double
shell
ReO4–.
more
loosely
solvated
anion
(ReO4–)
preferably
adsorbed
by
hydrophobic
redox
polymer
(PVFc),
electrostatic
cross-linking
driven
divalent
anionic
interactions
could
impair
film
swelling.
Thus,
in-depth
understanding
mechanisms
can
accelerate
design
ion-selective
redox-mediated
systems
transition
recovery
recycling.
JACS Au,
Год журнала:
2025,
Номер
5(3), С. 1221 - 1231
Опубликована: Фев. 27, 2025
Homogeneous
platinum
catalysts
for
hydrosilylation
are
essential
the
chemical
industry
and
society,
through
production
of
commodities
such
as
functional
silicones.
However,
high
boiling
points
products
low
concentration
homogeneous
make
implementation
traditional
separation
methods
difficult.
Catalyst
loss
becomes
a
core
sustainability
techno-economic
challenge.
In
addition,
highly
active
platinum-based
have
remarkable
susceptibility
to
deactivation
upon
reaction
completion.
Recently,
redox-mediated
electrosorption
has
been
successfully
demonstrated
in
number
electrically
conductive
media
platform.
industrial
systems
carried
out
nonconductive
media.
Therefore,
developing
an
electrochemical
recycling
system
realistic,
can
be
transformative
sustainable
catalysis
manufacturing.
Here,
we
overcome
these
challenges
catalyst
by
introducing
strongly
coordinating
vinyl
ligand
enabling
Pt
solvent-free,
nonpolar
reactant
two
distinct
loops
electrosorbent
regeneration.
The
olefin
maintains
catalytic
activity
after
prevents
particle
aggregation,
primary
mechanism
deactivation.
stabilized
coordinated
reversibly
adsorbed
released
electrosorbent,
demonstrating
100%
retention
over
90%
release
efficiency.
A
analysis
supports
economic
potential
system,
with
cost
savings
>5k
USD/kgPt.
By
combining
design
engineering,
demonstrate
industrially
relevant
practical
Biomacromolecules,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 15, 2025
A
Y-shaped
metallo-amphoteric
monomer
with
cobaltocenium
as
the
cation
and
sulfonyl
anion
was
synthesized
used
to
prepare
corresponding
metallo-polyampholyte
hydrogel
(PAH).
The
in
amphoteric
system
its
Y-shape
may
introduce
tunable
supramolecular
interactions,
providing
regulation
of
hydration
properties
biomedical
performance.
Such
metallo-PAH
showed
a
higher
water
swelling
ratio
comparable
mechanical
performance
comparison
organic
counterpart,
polysulfobetaine
methacrylate
(SBMA-PAH).
Moreover,
good
inhibitory
effect
against
Gram-negative
bacteria,
Gram-positive
well
drug-resistant
bacteria.
Interestingly,
it
found
that
achieved
high
95%
antifouling
property
different
proteins
both
short-term
(2
h)
long-term
(24
tests,
which
is
much
better
than
SBMA-PAH
(<50%).
It
believed
concept
"metallo-polyampholyte"
expand
field
classical
polyampholytes
related
materials,
thus
opening
up
new
avenue
design
powerful
materials.
Langmuir,
Год журнала:
2023,
Номер
39(47), С. 16685 - 16700
Опубликована: Ноя. 13, 2023
The
molecular
design
of
polymer
interfaces
has
been
key
for
advancing
electrochemical
separation
processes.
Precise
control
interactions
at
enabled
the
removal
or
recovery
charged
species
with
enhanced
selectivity,
capacity,
and
stability.
In
this
Perspective,
we
provide
an
overview
recent
developments
in
applied
to
liquid-phase
separations,
a
focus
on
their
role
as
electrosorbents
well
membranes
electrodialysis
systems.
particular,
delve
into
both
single-site
macromolecular
redox
polymers
use
heterogeneous
platforms.
We
highlight
significance
incorporating
redox-active
non-redox-active
moieties
tune
binding
toward
ever
more
challenging
including
structurally
similar
even
isomers.
Furthermore,
discuss
advances
development
selective
ion-exchange
critical
need
physicochemical
properties
polymer.
Finally,
share
perspectives
challenges
opportunities
ranging
from
comprehensive
understanding
mechanisms
continued
innovation
architectures
electrodes.
ACS Applied Polymer Materials,
Год журнала:
2024,
Номер
6(5), С. 2993 - 3002
Опубликована: Фев. 27, 2024
The
controlled
design
of
surfaces
through
functionalization
enables
a
tailored
material
properties.
Especially
stimuli-responsive
polymers
are
significant
interest
in
preparing
so-called
"smart
surfaces".
living
anionic
polymerization
offers
the
possibility
modifying
grafting-from
or
grafting-to
strategy.
This
study
applied
both
synthesis
strategies
to
functionalize
porous
polystyrene-based
microparticles
with
redox-responsive
poly(vinyl
ferrocene).
character
enabled
preparation
various
chain
lengths,
and
application
grafting
led
particles
different
hydrophilicity.
resulting
were
investigated
characterized
by
infrared
spectroscopy,
size-exclusion
chromatography,
scanning
electron
microscopy,
energy-dispersive
X-ray
thermogravimetric
analyses.
influence
molecular
polymer
brush
structure
lengths
hydrophilicity
on
electrochemical
addressability
functionalized
polystyrene
was
demonstrated
cyclic
voltammetry
measurements.
results
this
revealed
fundamental
characteristics
surface-immobilized
ferrocene
polymers,
which
for
electrochemically
responsive
materials
sensing
(selective)
separation
applications.