Figure 4.
Fourier transform infrared (FTIR) spectra of porous PHMB/SF sponges. PHMB/SF ratios: (a) 100/0; (b) 0/100; (c) 0.5/100; (d) 1/100; (e) 2/100; (f) 5/100; (g) 10/100.
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