Acylation Modification of Antheraea pernyi Silk Fibroin Using Succinic Anhydride and Its Effects on Enzymatic Degradation Behavior

Figure 4

The FTIR spectra of the Ap-SF scaffolds (a) unmodified; (b)–(d) modified by 4, 10, and 20 wt.% succinic anhydride, respectively.