Materials,
Journal Year:
2023,
Volume and Issue:
17(1), P. 151 - 151
Published: Dec. 27, 2023
Hybrid
organic/inorganic
conducting
and
magnetic
composites
of
core-shell
type
have
been
prepared
by
in-situ
coating
nickel
microparticles
with
polypyrrole.
Three
series
syntheses
made.
In
the
first,
pyrrole
was
oxidised
ammonium
peroxydisulfate
in
water
presence
various
amounts
contained
up
to
83
wt%
this
metal.
The
second
used
0.1
M
sulfuric
acid
as
a
reaction
medium.
Finally,
polypyrrole
nanotubes
were
structure-guiding
methyl
orange
dye.
always
accompanied
globular
morphology.
FTIR
Raman
spectroscopies
confirmed
formation
resistivity
composite
powders
order
tens
hundreds
Ω
cm
monitored
function
pressure
10
MPa.
slightly
increased
increasing
content
nickel.
This
apparent
paradox
is
explained
particles
polypyrrole,
which
prevents
their
contact
subsequent
generation
metallic
pathways.
Electrical
properties
practically
independent
way
preparation
or
controlled
phase.
On
contrary,
determined
exclusively
content.
solid
phase
prepare
magnetorheological
fluid.
test
showed
better
performance
when
compared
different
system
reported
earlier.
eXPRESS Polymer Letters,
Journal Year:
2024,
Volume and Issue:
18(5), P. 516 - 532
Published: Jan. 1, 2024
Novel
nonterminal
liquid
crystalline
epoxy
resin
has
been
synthesized,
and
its
structure
nature
have
determined
via
nuclear
magnetic
resonance
(NMR)
polarized
optical
microscopy
(POM).Then,
it
was
cured
with
the
use
of
4,4′-diaminodiphenylmethane
(4,4′-DDM).The
curing
process
investigated
differential
scanning
calorimetry
(DSC)
infrared
spectroscopy
(FTIR)
methods.Polymerization
conducted
(1.2
T)
without
presence
a
strong
field.The
properties
obtained
polymers
described
using
DSC,
thermogravimetric
analysis
(TGA),
electron
(SEM),
dielectric
(DS)
X-ray
scattering
studies
(WAXS/SAXS).It
proved
that
field
induces
molecular
ordering
increases
glass
transition
temperature
(T
g
)
by
over
20
°C.The
ordered
are
thermally
stable
up
to
300
°C,
undergo
vitrification
at
slightly
elevated
(37.5
°C),
their
electrical
conductivity
rises
significantly
an
elastic
state,
which,
among
other
possibilities,
makes
them
proper
candidate
for
smart,
lightweight
tuneable
subtle
rise
possibility
tailoring
field.
Osmaniye Korkut Ata Üniversitesi Fen Bilimleri Enstitüsü Dergisi,
Journal Year:
2024,
Volume and Issue:
7(4), P. 1722 - 1733
Published: Sept. 16, 2024
Son
yapılan
elektrokimyasal
hidrojenasyon
çalışmalarında
iletken
polimerler
yaygın
olarak
kullanılsa
da
reaksiyona
nasıl
bir
katkıda
bulundukları
tam
aydınlatılmamıştır.
Bu
çalışmada
iletkenliği
ve
kararlılığı
yüksek
olan
polianilin
metal
desteksiz
elektrot
haline
getirilip,
hidrojen
oluşturma
performansı
incelenmiştir.
Hidrojen
oluşum
mekanizması
dönüşümlü
voltametri,
Tafel
polarizasyon
eğrisi
impedans
spektroskopisi
ile
Elde
edilen
veriler
doğrultusunda
oluşumunun
yavaş
kontrollü
gerçekleştiği
elde
eğimi
değerinden
(480
mV/dec)
anlaşılmıştır.
kinetiği
farklı
potansiyellerde
kaydedilen
Nyquist
eğrilerinin
simülasyonu
sonucu
aydınlatılmaya
çalışılmıştır.
CO2,
N2
gibi
kararlı
moleküllerin
daha
düşük
enerji
girdisi
dönüşümlerinin
gerçekleşmesinin
polimerin
çıkarması
özelliğinden
kaynaklandığı
Hazırlanan
elektrodun
SEM
BET
analizi
karakterizasyonu
gerçekleştirilmiştir.
