The
melting-quenched samples of PHB/P(VAc-co-VA) blends
with different vinyl alcohol content show different phase
behavior. The PHB and P(VAc-co-VA9) with low vinyl
alcohol content (9%) can form a miscible blend in the
melt state. The PHB and the P(VAc-co-VA15) with 15%
vinyl alcohol cannot form miscible blends, while PHB/
P(VAc-co-VA15) blend with composition of 20/80 can
form a partially miscible blend in the melt state.
However, PHB and P(VAc-co-VA22) with 22 mol % vinyl