Polish Journal of Chemical Technology,
Journal Year:
2024,
Volume and Issue:
26(4), P. 81 - 86
Published: Dec. 1, 2024
Abstract
In
free
radical
polymerization
initiated
by
2,2’-azobis(2-methylpropionamidine)
dihydrochloride,
grafted
starch
copolymers
with
a
weight
ratio
of
acrylamide
to
acrylic
acid
1:2
were
obtained.
Three
products
used
cross-linking
copolymers:
MBA,
PETIA
and
EBECRYL
40
in
amounts
of:
0.2,
0.4,
0.6
1.0
wt.%.
Materials
characterized
Fourier
transform
infrared
spectroscopy,
differential
scanning
calorimetry
reoviscometry.
The
sorption
properties
confirmed
tests:
water
absorption,
swelling
cations:
trivalent
iron
divalent
copper.
highest
absorption
is
characteristic
materials
cross-linked
MBA
(1800%),
then
(1400%)
(850%).
On
the
other
hand,
best
results
are
sequence
>
(1050%
900%
570%).
most
effective
sorbent
cations
copolymer
MBA.
Solution
purifications
90%
45%
obtained
for
Fe
+3
Cu
+2
,
respectively.
