“…For pristine PC film, the FTIR prominent bands are found within the proximity of 3334, 2910, 1652, 1422 and 1099 cm −1, which belong to O-H stretching, C-H stretching, COO − stretching, C-H bending, and C-O-C stretching of PC, respectively. Additional bands found at 1740, 1228, and 1010 cm −1 are typical of -COOCH 3 stretching , O-H bending and -CH-O-CH- stretching of PC, respectively [ 37 , 38 , 39 , 40 ].…”