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. Author manuscript; available in PMC: 2020 Aug 20.
Published in final edited form as: ACS Appl Bio Mater. 2018 Dec 17;2(1):454–463. doi: 10.1021/acsabm.8b00650

Figure 8.

Figure 8.

(A) Major degradation hydrolytic and oxidative products. (B) FTIR spectra of 50% ester SMPs comparing acidic and basic degradation signals at 140 days. (C) 13NMR spectra of 50% ester SMP at 80 days oxidation and (D) hydrolysis. (E) 50% ester SMP at 140 days hydrolysis. (F) Comparison of degradation signals comparing basic hydrolysis and oxidation of 50% ester SMPs with virgin material and (G) the expanded spectra of the carbonyl region, displaying the peak shift associated with oxidative degradation. (H) SEM of 50% ester SMP oxidized for 50 days.