Thermally induced shape-memory effect (polymers)
The thermally induced unidirectional shape-shape-memory effect is an effect classified within the new so-called smart materials. Polymers with thermally induced shape-memory effect are new materials, whose applications are recently being studied in different fields of science (e.g., medicine), communications and entertainment.
Source: Wikipedia — Thermally induced shape-memory effect (polymers) (CC BY-SA 4.0)