The
IR
analysis
indicates
that
the
hydroxyl
group
of
cellulose
acetate
(DS
2.5)
may
have
esterified
with
EDTAD,
resulting
in
the
formation
of
carboxylic
acid
as
well
as
crosslinking
between
the
cellulose
acetate
chains.
The
results
of
FTIR
corroborate
with
results
obtained
by
Kono
and
Fujita
[7],
and
Senna
et
al.
[8].