抄録
Miscibility of polymers in aqueous frozen solutions was studied through thermal analysis. Freeze-concentration separated some polymer combinations (e.g., PVP and dextran) in single-phase initial solutions into different amorphous phases among ice crystals. Other polymer combinations (e.g., PVP and ovalbumin) were concentrated into mixed amorphous phase. Addition of salts altered the polymer miscibility by covering the electrostatic interaction and hydration state of polymers. Possible mechanisms and effects of the phase separation were discussed.
