Department of Biomedical Engineering, University Medical Centre Groningen, University of Groningen, P.O. Box 196, 9700 AD Groningen, The Netherlands.
Macromol Biosci. 2012 Oct;12(10):1423-35. doi: 10.1002/mabi.201200155. Epub 2012 Sep 10.
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 T(g) 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 T(g) 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.
坚韧的网络是通过光交联高分子量 DLLA 和 TMC 大分子单体制备的。这些无定形网络具有可调节的热和机械性能，并且具有出色的形状记忆特性。单体比例的变化可以调整 T(g)在大约-13 和+51°C 之间。在室温下的弹性模量可以在 4.5 和 2730 MPa 之间变化。交联允许网络在变形后恢复到原来的形状。60:40 DLLA:TMC 网络的 T(g)值在室温到体温之间，在体温下的机械性能接近软组织。几种医疗器械是由这些网络制备的。
