Exploring chiral and achiral properties of novel multilayer 3D polymers: synthesis and characterization
Sai Zhang,
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Qingzheng Xu,
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Xiuyuan Qin
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et al.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(5), P. 3227 - 3236
Published: Jan. 1, 2025
This
study
reports
the
novel
synthesis
of
multilayered
3D
polymers
via
1,3,5-position
coupling
1,3,5-tris(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzene
with
1,8-dibronaphthalene,
a
previously
unreported
method.
Language: Английский
Characterization of Chiral Thiophene Multilayer 3D Polymers with AIE Properties for Environmental Monitoring of Chromium Ions
Sai Zhang,
No information about this author
Qingzheng Xu,
No information about this author
Qingkai Yuan
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et al.
Macromolecular Rapid Communications,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 14, 2025
Abstract
This
study
reports
the
synthesis
and
characterization
of
novel
thiophene‐based
multilayer
3D
chiral
polymers
incorporating
methoxy
octyloxy
functional
groups.
These
exhibit
unique
fluorescence
properties,
including
a
pronounced
aggregation‐induced
emission
(AIE)
phenomenon
at
lower
excitation
wavelength
than
previously
reported
thiophene
systems.
Additionally,
demonstrate
remarkable
sensitivity
in
detecting
hexavalent
chromium
ions
(Cr
6+
),
significant
environmental
pollutant.
The
interaction
between
Cr
leads
to
measurable
changes
fluorescence,
highlighting
their
potential
for
applications
monitoring
biosensing.
Importantly,
these
are
effective
actual
water,
where
they
maintain
selectivity
despite
presence
competing
metal
ions.
enhanced
further
underscores
suitability
real‐world
applications.
work
contributes
field
emphasizes
versatility
advanced
sensing
Language: Английский
Enantioselective Induction of Helical Chirality in Coil‐Structured Amino Acid‐Based Polymers by Conjugated Molecules
Guoqiang Ji,
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Huimin Duan,
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Xinlei Wu
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et al.
Macromolecular Chemistry and Physics,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 29, 2025
Abstract
Chirality
induction
in
aprotic
polar
solvents
is
challenging
due
to
disrupted
intermolecular
interactions
and
the
high
conformational
flexibility
of
random‐coil
polymers.
Herein,
a
scalable
strategy
using
chiral
BINOL
as
sole
source
induce
helical
chirality
polymers
presented.
Circular
dichroism
(CD),
ultraviolet‐visible
(UV–
vis),
resonance
Raman
spectroscopy
confirm
that
effectively
induces
cis‐transoidal
conformations
through
hydrogen
bonding
π–π
stacking
interactions.
CD
circularly
polarized
luminescence
(CPL)
measurements
reveal
efficient
transfer
amplification,
with
mirror‐image
CPL
signals
observed
at
390
nm.
Resonance
spectra
demonstrate
enhanced
structural
order
reduced
irregularities,
evidenced
by
blue
shift
narrowed
C═C
peak,
while
achiral
exhibits
minimal
ability.
This
study
highlights
mechanisms
excitation
solvents,
providing
versatile
pathway
for
designing
advanced
materials
exceptional
optical
fluorescence
properties.
Language: Английский
Synthesis and Characterization of Multilayer 3D Chiral Polymers with Enhanced Optical Properties
Sai Zhang,
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Xiaobei Jin,
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Daixiang Chen
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et al.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(7), P. 1567 - 1567
Published: March 31, 2025
This
study
reports
the
synthesis
of
novel
multilayer
3D
chiral
polymers
using
2,2′-(2,7-Naphthalenediyl)bis[4,4,5,5-tetramethyl-1,3,2-dioxaborolane]
and
1,8-dibronaphthalene
along
with
its
derivatives
as
key
precursors.
Comprehensive
characterization
was
performed
nuclear
magnetic
resonance
(NMR),
gel
permeation
chromatography
(GPC),
photoluminescence,
ultraviolet
(UV)
spectroscopy,
scanning
electron
microscopy
(SEM),
polarimetry,
dynamic
light
scattering
(DLS),
thermogravimetric
analysis
(TGA).
Notably,
exhibited
remarkable
aggregation-induced
emission
(AIE)
polarization
(AIP)
phenomena,
revealing
enhanced
luminescence
optical
activity
in
aggregated
states.
These
findings
underscore
potential
these
for
applications
optoelectronics
advanced
sensing
technologies,
highlighting
intricate
relationship
between
molecular
structure
behavior.
Language: Английский