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Selected SEM images of nanocomposite films based on CTA and 1 wt% raw or acetylated lignin. Comparison of (a) raw and (b) acetylated lignins under identical preparation conditions: examples of effects of (c) RH at constant temperature and (d) temperature at constant RH on the dispersion of lignins. (e) Cross section of films prepared from raw lignins. (f) Pure CTA film shown as a reference.
