Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Full-color
CPL
composite
films
prepared
using
helical
polymers,
fluorescein
and
substrates
have
excellent
mechanical
processing
properties.
They
exhibit
matrix
universality,
low
cost,
multi-stimulus
responsiveness
to
UV,
heat,
acid/base.
Angewandte Chemie,
Год журнала:
2024,
Номер
136(39)
Опубликована: Июнь 27, 2024
Abstract
Porous
frameworks
with
controlled
pore
structure
and
tunable
aperture
are
greatly
demanded.
However,
precise
synthesis
of
this
kind
materials
is
a
formidable
challenge.
Herein,
we
report
the
fabrication
two‐dimensional
(2D)
supramolecular
polymer
using
precisely
synthesized
rod‐like
helical
polyisocyanide
as
link.
Four
three‐arm
star‐shaped
polyisocyanides
degree
polymerization
10,
20,
30
40,
having
2‐ureido‐4[1H]‐pyrimidinone
(UPy)
terminals
were
synthesized.
2D‐Crystalline
apertures
5.3,
10.1,
13.9,
19.1
nm
respectively
obtained
through
intermolecular
hydrogen
bonding
interaction
between
terminal
Upy
units.
The
dependent
on
length
backbone.
Thus,
well‐defined
uniform
hexagonal
pores
obtained,
proved
by
small‐angle
X‐ray
scattering
(synchrotron
radiation
facility),
atomic
force
microscopy,
Brunauer–Emmett–Teller
analyses.
large
used
to
purify
nanomaterials
immobilize
biomacromolecules.
For
instance,
membranes
could
size‐fractionation
silver
nanoparticles
into
very
low
dispersity.
facilitated
inclusion
myoglobin
enhanced
stability
catalytic
activity.
Nanoscale,
Год журнала:
2024,
Номер
16(30), С. 14269 - 14274
Опубликована: Янв. 1, 2024
The
precise
control
of
the
chirality
polymer
assemblies
is
a
challenge
faced
by
scientists
and
has
received
significant
attention
in
recent
years.
In
this
study,
we
employed
polymerization-induced
chiral
self-assembly
(PICSA)
method
to
create
side-chain
cyanobiphenyl
(CB)
block
copolymer
(BCP)
assemblies.
flexible
spacers
CB
monomers
were
regulated
exhibit
two
distinct
odd-even
effects
supramolecular
asymmetrical
arrangement
mesogens
inside
BCP
research
results
indicated
that
liquid
crystalline
properties
significantly
influence
magnitude
sign
their
chiroptical
properties.
These
findings
have
implications
for
design
with
designable
functions.
Advanced
functional
polymeric
materials
can
possess
chemical
reactivity,
catalytic
properties,
photosensitivity,
electrical
conductivity,
biological
activity,
biocompatibility,
pharmacological
selective
separation,
and
energy
conversion
of
traditional
polymers.
Because
these
the
production
characterization
polymers
has
become
an
essential
part
modern
industry
advanced
technology.
Methacrylate
are
highly
versatile
owing
to
their
exceptional
properties
including
superior
optical
transparency,
excellent
light
transmission,
robust
thermal
stability.
This
study
investigates
a
class
methacrylate
coincorporating
coumarin
tyrosine
units,
aiming
explore
synergistic
effects
moieties
on
polymers'
optoelectronic
properties.
The
were
synthesized
characterized,
revealing
significant
alterations
in
electronic
structure
due
incorporation
coumarin-tyrosine
hybrids
into
backbone.
Optical
assessed
via
UV-vis
photoluminescence
spectroscopy,
demonstrating
solvent-dependent
red
shifts
intense
emission
peaks,
indicative
efficient
charge
transfer
between
coumarin.
results
highlight
potential
novel
for
applications
optoelectronics
offer
new
insights
synthesis,
functionalization,
performance.
In
this
study,
diode
observed
that
exhibited
effective
behavior
with
calculated
ideality
factors
(n)
2.68
2.78,
barrier
heights
(Φb)
0.45
0.46
eV,
respectively,
indicating
more
height
compared
previously
reported
studies.
work
contributes
expanding
knowledge
tunable
semiconducting
polymers,
paving
way
future
innovations
material
science.
Chemical Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Full-color
CPL
composite
films
prepared
using
helical
polymers,
fluorescein
and
substrates
have
excellent
mechanical
processing
properties.
They
exhibit
matrix
universality,
low
cost,
multi-stimulus
responsiveness
to
UV,
heat,
acid/base.