Abstract
The phase equilibrium and phase transition for miscible polymer blends of poly(vinylidene fluoride-co-hexafluoro acetone) [p(VDF-HFA)]/poly(ethylene-co-vinyl acetate) (EVAc) were investigated using DSC, dynamic mechanical loss measurements, and thermo-photometry. It was found that blends of p(VDF-HFA) and EVAc with vinyl acetate (VAc) content more than 86.0 wt% are miscible, but p(VDF-HFA)/EVAc with less than 45.4 wt% of VAc are immiscible. It was also found that a blend of p(VDF-HFA)/EVAc (VAc: 70 wt%) (EVAc 70) has a LCST type phase diagram, and shows markedly rapid phase transition with temperature dropping.
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Hasegawa, M., Akiyama, S. Miscibility and Rapid Phase Transition Behavior in Poly-(vinylidene fluoride-co-hexafluoro acetone)/ Poly(ethylene-co-vinyl acetate) Blends. Polym J 20, 471–476 (1988). https://doi.org/10.1295/polymj.20.471
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DOI: https://doi.org/10.1295/polymj.20.471