The results indicate that:
(i) PTT is partially miscible with ABS; (ii) the miscibility
of the PTT/ABS blends is improved slightly as
the ABS content is increased; and (iii) assuming that
the empirical Fox equation [36] is applicable to the
PTT/ABS blends, the Tgs changes indicate that the
solubility of ABS in the PTT-phase is greater than
that of PTT in the ABS-phase