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. 2020 Nov 18;6(11):e05529. doi: 10.1016/j.heliyon.2020.e05529

Figure 2.

Figure 2

FTIR spectra of the neat PAM (1), neat CNC (10), and PAM/CNC composite films with different CNC content (wt.%): 4.6 (2), 10.3 (3), 15.2 (4), 19.7 (5), 29.8 (6), 40.1 (7), 50.3 (8), and 75.2 (9): (a) in the 4000–500 cm−1 range; (b) in the 1700–1300 cm−1 range.