2.1.8.2. Absorbency Under Load (AUL) - BADA

The IZP-hydrogel compared with unmodified and EDTAD-modified zygomycetes protein
indicates an important peak at 2342 cm −1 (medium), that might be due to anti-symmetric
Stretching ─NCO (Fig.40C), because of the rearrangement mechanism. In this rearrangement the
R─ group migrates with its electrons from the acyl carbon to the nitrogen atom in present of OH ─ .
The band at 1450 cm −1 represents asymmetric CH2 bending modes of end ethyl groups of
zygomycetes protein.
Figure 40. FTIR-Spectra of the unmodified zygomycetes protein (a), EDTAD-modified IZP (b) and the
EDTAD-IZP hydrogel (c)
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