second heating scan. Clear differences can be seen between the first
scans of the samples (Fig. 4a). While the thermograms of the PLA
and PLA-NC blend samples show only one endothermic peak,
associated with the melting transition, PLABz shows a broader
melting peak, which appears to be the result of two superimposed
endothermic peaks, suggesting that the incorporation of benzoyl
groups leads to important changes in the way that PLA chains are
arranged