Chemical Science,
Год журнала:
2024,
Номер
15(46), С. 19604 - 19608
Опубликована: Янв. 1, 2024
CuBr-mediated
surface-initiated
controlled
radical
polymerization
for
polymer
brushes
with
patterned
and
block
architectures
over
large
areas
in
air
is
reported.
Langmuir,
Год журнала:
2024,
Номер
40(11), С. 5571 - 5589
Опубликована: Март 5, 2024
Polymer
brushes
have
received
great
attention
in
recent
years
due
to
their
distinctive
properties
and
wide
range
of
applications.
The
synthesis
polymer
typically
employs
surface-initiated
atom
transfer
radical
polymerization
(SI-ATRP)
techniques.
To
realize
the
control
process
different
environments,
various
SI-ATRP
techniques
triggered
by
stimuli
been
developed.
This
review
focuses
on
latest
developments
stimuli-triggered
methods,
such
as
electrochemically
mediated,
photoinduced,
enzyme-assisted,
mechanically
controlled,
organocatalyzed
ATRP.
Additionally,
technology
a
combination
multiple
sources
is
also
discussed.
Furthermore,
applications
lubrication,
biological
applications,
antifouling,
catalysis
are
systematically
summarized
Despite
advancements
types
1D,
2D,
3D
via
controlled
polymerization,
contemporary
challenges
remain
quest
for
more
efficient
straightforward
synthetic
protocols
that
allow
precise
over
composition,
structure,
functionality
brushes.
We
anticipate
readers
could
promote
understanding
surface
functionalization
based
ATRP-mediated
envision
future
directions
application
coating
technologies.
This
paper
describes
the
synthesis
of
supramolecular
polymer
brushes
via
surface-initiated
polymerization
from
adamantane-functionalized
initiators
that
are
noncovalently
bound
to
β-cyclodextrin-
or
cucurbit[7]uril-modified
substrates.
Surface-initiated
atom
transfer
radical
in
aqueous
media
allowed
growth
various
hydrophilic
with
film
thicknesses
up
40
nm
β-cyclodextrin
functionalized
surfaces.
The
adamantane
moiety
not
only
forms
a
host–guest
complex
β-cyclodextrin,
but
also
cucurbit[7]uril,
which
provides
opportunities
study
effect
binding
strength
these
motifs
on
thickness
and
grafting
density
resulting
brushes.
Comparison
grown
cucurbit[7]uril-based
noncovalent
reveals
differences
much
smaller
than
expected
based
solution
constant
corresponding
complexes.
Both
as
well
cucurbit[7]uril-anchored
were
remarkably
robust
toward
detachment
grafts.
These
observations
attributed
fact
rates
formation
dissociation
complexes
faster
compared
diffusion
free,
detached
chains
through
brush
film.
As
result,
surface-grafted
presents
steric
barrier
prevents
individual
chains,
allows
substrates
putatively
weak
β-cyclodextrin-based
Macromolecular Chemistry and Physics,
Год журнала:
2023,
Номер
225(1)
Опубликована: Окт. 31, 2023
Abstract
The
unique
features
of
poly[2‐(dimethylamino)ethyl
methacrylate]
(PDMAEMA),
such
as
its
sensitivity
to
external
stimuli
like
pH
and
the
presence
tertiary
amine
groups
that
can
be
easily
quaternized
introduce
antibacterial
properties,
make
it
a
promising
platform
for
biomedical
applications.
In
this
contribution,
facile,
cost‐effective,
ecological
procedure
controlled
grafting
PDMAEMA
brushes
from
glass
surface,
both
in
mL
µL
scale,
is
developed.
This
concept
involves
utilizing
an
aqueous
solution
sunflower
honey
source
reducing
sugars
accelerate
surface‐initiated
activators
regenerated
by
electron
transfer
atom
radical
polymerization.
chains
covalently
grafted
surface
are
then
form
film.
thickness
polymeric
brush
layer
determined
atomic
force
microscopy,
while
chemical
composition
analyzed
time
flight
secondary
ion
mass
spectrometry.
Water
contact
angle
measurements
demonstrate
pH‐sensitivity
pointing
out
potential
application
prepared
material
smart
surfaces.
Furthermore,
tests
against
Gram‐positive
Gram‐negative
bacteria
strains
performed.
protein
adsorption
used
evaluate
biocompatibility
resulting
materials
serve
multifunctional
surfaces
various
purposes.
Langmuir,
Год журнала:
2024,
Номер
40(5), С. 2664 - 2671
Опубликована: Янв. 22, 2024
Atom
transfer
radical
polymerization
(ATRP)
is
one
of
the
most
widely
used
methods
for
modifying
surfaces
with
functional
polymer
films
and
has
received
considerable
attention
in
recent
years.
Here,
we
report
an
electrochemically
mediated
surface-initiated
ATRP
to
graft
brushes
onto
solid
substrates
catalyzed
by
ppm
amounts
CuII/TPMA
water/MeOH
solution.
We
systematically
investigated
type
concentrations
copper/ligand
applied
potentials
correlated
kinetics
brush
thickness.
Gradient
various
types
are
prepared.
Block
copolymerization
2-hydroxyethyl
methacrylate
(HEMA)
3-sulfopropyl
potassium
salt
(PSPMA)
(poly(HEMA-b-SPMA))
ultralow
eATRP
indicates
remarkable
preservation
chain
end
functionality
a
pronounced
"living"
characteristic
feature
ppm-level
aqueous
solution
surface
polymerization.
Applied Surface Science Advances,
Год журнала:
2023,
Номер
18, С. 100544 - 100544
Опубликована: Дек. 1, 2023
The
modification
of
surfaces
with
various
polymer
chains
through
interactions
involving
strong
covalent
bonds
is
a
current
focal
point.
relevance
this
subject
lies
in
the
diversification
polymeric
structures,
particularly
applicable
biomedical
engineering
and
medicine.
Presently,
designs
for
drug
carrier
systems
have
reached
an
advanced
stage,
novel
polymer-based
materials
been
successfully
synthesized.
Polymeric
brushes
find
applications
crucial
medical
areas
such
as
artificial
tissue
engineering,
implants,
biosensors.
advantages
include
their
sensitivity
to
stimuli,
variety
types
synthesis
methods,
tunability,
high
biocompatibility.
This
study
comparatively
examines
grafting
approaches
polymerization
techniques
frequently
encountered
literature,
highlighting
primary
applications.
Langmuir,
Год журнала:
2024,
Номер
40(16), С. 8393 - 8399
Опубликована: Март 5, 2024
Surface-tethered
poly(ionic
liquid)
brushes
have
attracted
considerable
attention
in
widespread
fields,
from
bioengineering
to
marine
antifouling.
However,
their
applications
been
constrained
due
the
poor
polymerization
efficiency
and
sophisticated
operation
process.
In
this
work,
we
efficiently
synthesized
with
unparalleled
speed
(up
98
nm
h–1)
through
Fe0-mediated
surface-initiated
atom
transfer
radical
(Fe0
SI-ATRP)
while
consuming
only
microliter
of
monomer
solution
under
ambient
conditions.
We
also
demonstrated
that
gradient
thickness
wettability
were
easily
accessible
by
regulating
distance
between
opposite
plates
Fe0
SI-ATRP.
Moreover,
resultant
presented
excellent
antibacterial
activities
against
Escherichia
coli
(99.2%)
Bacillus
subtilis
(88.1%)
after
24
h
low
attachment
for
proteins
algae
(≤5%)
over
2
weeks.
This
research
provided
pathways
facile
controllable
fabrication
materials
antifouling
applications.
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
16(21), С. 27761 - 27766
Опубликована: Май 15, 2024
Surface-initiated
iron(0)-mediated
controlled
radical
polymerization
(SI-Fe0CRP)
with
low
toxicity
and
excellent
biocompatibility
is
promising
for
the
fabrication
of
biofunctional
polymer
coatings.
However,
development
Fe(0)-based
catalysts
remains
limited
by
lower
dissociation
activity
Fe(0)
surface
in
comparison
to
Cu(0).
Here,
we
found
that,
simply
polishing
plate
sandpaper,
poly(methacryloyloxy)ethyl
trimethylammonium
chloride
brush
growth
rate
has
been
increased
significantly
3.3
from
0.14
nm
min-1
pristine
plate.
The
controllability
roughness-mediated
SI-Fe0CRP
can
be
demonstrated
customizing
multicompartment
brushes
triblock
brushes.
Furthermore,
that
resulting
coatings
exhibit
remarkably
water
adhesion
(0.097
mN)
an
outstanding
drag
reduction
52%
water.
This
work
provides
a
strategy
regulating
grafting
via
biocompatible
marine