Chain‐Folding Effects on Polymer Film Gas Permeabilities
Macromolecular Chemistry and Physics,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 8, 2025
Abstract
Polymer
gas
sorption
and
permeability
are
key
parameters
when
choosing
materials
for
applications
from
separation
to
food
packaging.
These
naturally
affected
by
the
polymer
chemistry,
but
also
bulk
morphology.
In
this
work,
effect
of
chain
folding
(intramolecular)
collapse
on
such
properties
is
studied.
While
maintaining
same
chemical
composition,
powders
films
made
linear
folded
chains
compared,
indicating
that
affects
only
slightly
overall
solubility
in
polymer,
diffusivity
changed
very
significantly.
Measurements
at
different
pressures
provide
clear
support
well‐behaved
systems
which
chemically
similar
show
properties,
allowing
decoupling
chemistry
properties.
Язык: Английский
Seawater‐degradable poly(ethylene adipate‐co‐terephthalate) copolyester: Synthesis, properties, and degradation behavior
Journal of Applied Polymer Science,
Год журнала:
2024,
Номер
141(36)
Опубликована: Июнь 21, 2024
Abstract
The
application
and
promotion
of
biodegradable
plastics
are
hindered
by
the
imbalance
between
their
mechanical
degradation
performance
imbalance,
as
well
high
costs.
Herein,
a
series
poly(ethylene
adipate‐co‐terephthalate)
(PEAT)
copolyesters
with
excellent
properties
synthesized
one‐step
melt
polycondensation.
influence
proportion
aliphatic
groups
in
molecular
chain
on
structure
properties,
especially
performance,
was
studied.
flexibility
degradability
PEAT
increases
increasing
adipic
acid
content
decreasing
ET
fragment
length
(
L
).
comprehensive
PEAT60
can
be
comparable
to
traditional
packaging
material
poly(butylene
adipateco‐terephthalate)
(PBAT).
adjusted
structure.
<
3
exhibit
2.2
significant
acceleration.
degradable
copolyester
make
it
expected
used
other
fields
help
solve
plastic
pollution,
while
its
lower
cost
will
aid
materials.
Язык: Английский
A Comparative Study on the Melt Crystallization of Biodegradable Poly(butylene succinate-co-terephthalate) and Poly(butylene adipate-co-terephthalate) Copolyesters
Polymers,
Год журнала:
2024,
Номер
16(17), С. 2445 - 2445
Опубликована: Авг. 29, 2024
As
an
important
biodegradable
and
partially
biobased
copolyester,
poly(butylene
succinate-
Язык: Английский