Figure 2.
FT-IR spectra of (a) PVA, (b) PVA-M0.1, (c) PVA-M0.25, (d) PVA-M0.5, (e) PVA-M0.5-K0.1, (f) PVA-M0.5-K0.25, and (g) PVA-M0.5-K0.5 composite sponges.
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