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Comparison of NCC (40NCC, 58NCC, 64NCC and 78NCC) FTIR spectra obtained using various concentrations of acid and microcrystalline cellulose precursor (MCC) at (a) 3300 cm−1 (OH), (b) 1640 cm−1 (NCC-OH), (c) 1430-1420 cm−1 (CH2), (d) 1270-1232 cm−1 (C-O-C) and (e) 1150 cm−1 (C-O-C).
