SEARCH

SEARCH BY CITATION

Keywords:

  • D,L-lactide macromers;
  • photo-crosslinking;
  • shape-memory polymers;
  • tough biodegradable networks;
  • trimethylene carbonate macromers

Abstract

Thumbnail image of graphical abstract

Tough networks are prepared by photo-crosslinking high-molecular-weight DLLA and TMC macromers. These amorphous networks exhibit tunable thermal and mechanical properties and have excellent shape-memory features. Variation of the monomer ratio allows adjustment of Tg between approximately −13 and +51 °C. The elastic moduli at room temperature can be varied between 4.5 and 2730 MPa. The crosslinks allow the networks to return to their original shape after deformation. 60:40 DLLA:TMC networks have Tg values between room temperature and body temperature, with mechanical properties at body temperature close to soft tissues. Several medical devices are prepared from these networks.