Polymer Chemistry,
Год журнала:
2024,
Номер
16(4), С. 422 - 432
Опубликована: Ноя. 14, 2024
We
offer
a
rational
study
of
simple
synthesis
porous
organic
polymers
which
impregnate
their
own
reducing
sites
Ag
+
into
nanoparticles
at
the
meantime
we
utilized
these
nanocomposites
for
hazardous
pollutants.
Polymer Chemistry,
Год журнала:
2023,
Номер
15(5), С. 397 - 411
Опубликована: Дек. 27, 2023
Using
Sonogashira
coupling
reactions
and
a
postmodification
approach,
we
successfully
synthesized
TPET-Im
CMP
incorporating
an
imidazolium
unit
to
enhance
antibacterial
properties
optimize
its
performance
as
supercapacitor
electrode.
ACS Applied Energy Materials,
Год журнала:
2023,
Номер
6(21), С. 11342 - 11351
Опубликована: Ноя. 1, 2023
Conjugated
microporous
polymers
(CMPs),
known
for
their
high
specific
capacities,
exceptional
cycling
stability,
and
outstanding
rate
performance,
are
being
actively
studied
as
advanced
electrode
materials
energy
storage
applications.
The
utilization
of
redox-active
units
in
CMP
exhibits
substantial
promise.
Nevertheless,
the
influence
positioning
region
on
electrochemical
behavior
battery
performance
remains
a
topic
uncertainty.
Herein,
we
successfully
created
two
CMPs
using
Sonogashira–Hagihara
coupling
method,
specifically
by
including
azobenzene
(Azo)
moieties
meta
(m)
para
(p)
locations.
These
named
Py-mAzo-CMP
Py-pAzo-CMP.
To
produce
them,
used
precursor
compounds
(E)-1,2-bis(3-bromophenyl)diazene
(mAzo-Br2)
(E)-1,2-bis(4-bromophenyl)diazene
(pAzo-Br2),
combined
with
tetraethynylpyrene
(Py-T).
Our
primary
focus
was
to
investigate
impact
substituting
Azo
unit
at
different
positions.
assess
orientation
molecules
pores
these
Py-Azo-CMPs,
conducted
thorough
analysis,
BET
isotherm
measurements
various
spectroscopic
microscopic
techniques.
findings
from
TGA
analysis
indicated
that
Py-Azo-CMPs
exhibit
moderate
thermal
stability.
One
remarkable
discovery
excellent
Py-pAzo-CMP,
which
displayed
capacitance
142
F
g–1
(determined
1
A
g–1),
showcasing
its
capacitive
properties.
Despite
operating
current
density
10
g–1,
both
Py-mAzo
Py-pAzo-CMPs
exhibited
long-term
retaining
over
92%
capacity
even
after
5000
cycles.
results
underscore
potential
Py-pAzo-CMP
dependable
enduring
choice
highlight
significant
promise
Py-Azo-CMP
suitability
useful
applications,
electrical
(EES).
Polymers,
Год журнала:
2024,
Номер
16(13), С. 1759 - 1759
Опубликована: Июнь 21, 2024
Capturing
carbon
dioxide
(CO2)
is
still
a
major
obstacle
in
the
fight
against
climate
change
and
reduction
of
greenhouse
gas
emissions.
To
address
this
problem,
we
employed
simple
Friedel–Crafts
alkylation
to
investigate
effectiveness
porous
organic
polymers
(POPs)
based
on
triphenylamine
(TPA)
trihydroxy
aryl
terms
derived
from
chloranil
(CH),
designated
as
TPA-CH
POP.
We
then
treated
POP
with
(3-mercaptopropyl)trimethoxysilane
(3-MPTS),
forming
POP-SH
nanocomposite
enhance
CO2
capture.
Utilizing
FTIR,
solid-state
NMR,
SEM,
TEM,
along
XPS
techniques,
molecular
makeup,
morphological
characteristics,
well
physical
features
were
thoroughly
explored.
Upon
scorching
800
°C,
demonstrated
more
thermal
durability
over
POP,
achieving
char
yield
up
71.5
wt.%.
The
displayed
2.5-times
better
capture,
comparable
adsorption
capacity
48.07
cm3
g−1
at
273
K.
Additionally,
found
that
exhibited
an
improved
CO2/nitrogen
(N2)
selectivity
versus
original
Typical
enthalpy
changes
for
capture
somewhat
increased
by
3-MPTS
coating,
indicating
greater
binding
energies
between
molecules
adsorbent
surface.
Our
outcomes
demonstrate
composite
coated
MPTS
viable
candidate
effective
uses.
findings
encourage
investigation
different
functional
groups
optimization
strategies.
ACS Applied Polymer Materials,
Год журнала:
2023,
Номер
5(11), С. 9585 - 9593
Опубликована: Окт. 26, 2023
Self-healing
conductivity
of
materials
is
a
very
attractive
property,
but
preparing
simple
green
conductive
material
still
challenge.
In
this
article,
self-healing
was
prepared
by
using
polyaniline
as
substance
with
oxidized
nanocellulose
and
polyacrylamide.
When
the
are
1:1,
fracture
stress
can
reach
1.62
MPa
(≈400%).
Meanwhile,
has
certain
effect
due
to
presence
hydrogen
bonding
electrostatic
interaction
forces.
After
48
h
at
room
temperature,
maximum
reached
0.83
MPa.
The
electrical
47.22
μS/cm,
efficiency
>90%
after
1
temperature.
This
solution
casting
process,
which
allows
be
in
large
areas.