Poly(vinyl acetate-co-vinyl alcohol)s (P(VAc-co-VA)s) with different degree of hydrolysis (DH) were blended with polylactide (PLA) by melt mixing to prepare PLA/P(VAc-co-VA) blends with various weight ratios. PLA and PVAc were miscible. For blends of PLA and P(VAc-co-VA) with DH from 13.8 ∼ 55.1%, PLA and P(VAc-co-VA)s were partly miscible. For PLA/P(VAc-co-VA14) blends with P(VAc-co-VA14) of 5–50 wt.%, PLA/P(VAc-co-VA33) with P(VAc-co-VA33) of 5–50 wt.%, and PLA/P(VAc-co-VA55) with P(VAc-co-VA55) of 5–20 wt.%, P(VAc-co-VA)s were dispersed in PLA uniformly. The size of dispersed phase changed with the content and DH of P(VAc-co-VA). When the content of P(VAc-co-VA55) in PLA/P(VAc-co-VA55) blends was above 30 wt.%, the dual continuous phase formed.
No takes yet. Share an insight, caveat, or question.
Liu et al. (2014) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: