Polymer Engineering and Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 24, 2024
Abstract
Tea
polyphenol
(TP)
is
used
as
a
food
additive
to
inhibit
lipid
peroxidation
reactions
and
extend
shelf
life,
but
excessive
intake
can
affect
the
human
immune
system.
Therefore,
developing
effective
TP
detection
significant.
Here,
pyrene‐based
polyimide
(Py‐PI)
was
synthesized
by
one‐step
condensation
copolymerization.
This
possessed
excellent
solubility
photoluminescence
due
introduction
of
pyrene‐conjugated
groups.
It
could
be
fluorescent
probe
for
in
solution.
In
addition,
Py‐PI
test
paper
with
different
morphology
were
prepared
electrospinning.
As
concentration
spinning
solution
15
wt%,
bead‐like
porous
polymer
electrospun
membrane
displayed
surface
wettability
which
make
water
droplet
completely
penetrate
into
sample
within
6
min.
The
fluorescence
enhancement
phenomenon
observed
5
×
10
−6
mg/mL
on
paper.
Furthermore,
interference
investigation
pH
indicated
that
exhibited
relatively
stable
“turn‐on”
response
acidic
conditions.
work
provides
convenient
rapid
antioxidant
future.
