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Keywords:

  • blends;
  • degradable polymer;
  • polyurethane dispersion;
  • shape-memory effect

Abstract

Thumbnail image of graphical abstract

Degradable polyurethane/soybean protein (PU/SP) shape-memory polymer blends are synthesized using an environmentally-friendly aqueous dispersion technique. The effects of SP concentration on the blend miscibility, thermal properties, hydrolytic degradation, and shape-memory behavior are investigated. The shape recovery rates are found to depend on SP concentration. A porous structure can be generated using scCO2 foaming. This degradable blend may be an interesting multifunctional candidate material for potential biomedical applications.