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. 2019 Aug 12;11(8):1337. doi: 10.3390/polym11081337

Figure 7.

Figure 7

Photographs of the (a) original ETFE film, (b) the ETFE-g-PSt-CHO, and (c) the ETFE-g-PAP-15-C-5-Ar before (top) and after (bottom) immersion in the azo-NH3Cl aqueous solution.