Water-Blown Polyurethane Foams Showing a Reversible Shape-Memory Effect.

ABSTRACT: Water-blown polyurethane (PU) foams are of enormous technological interest as they are widely applied in various fields, i.e., consumer goods, medicine, automotive or aerospace industries. The discovery of the one-way shape-memory effect in PU foams provided a fresh impetus for extensive investigations on porous polymeric actuators over the past decades. High expansion ratios during the shape-recovery are of special interest when big volume changes are required, for example to fill an aneurysm during micro-invasive surgery or save space during transportation. However, the need to program the foams before each operation cycle could be a drawback impeding the entry of shape-memory polymeric (SMP) foams to our daily life. Here, we showed that a reversible shape-memory effect (rSME) is achieva

SUBMITTER: Zharinova E 

PROVIDER: S-EPMC6431911 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature