Here, the results of DSC analysis for HLS/PVA blends were
shown in Fig. 1 and Table 1. As for pure PVA, the former platform
(Tg = 74.9 ◦C) in the lower temperature (0–120 ◦C) region is
apparently attributed to PVA chain movement in the amorphous region; the latter one (ˇc, (locating at 132.8 ◦C) in the higher temperature region (120–180 ◦C) is associated with crystalline relaxations
(T) of PVA . Amorphous HLS exhibits one Tg at 149.2 ◦C which
is obviously higher than that of PVA