Shape-memory polymers (SMPs) are polymeric smart materials that have the ability to return from a deformed state (temporary shape) to their original (permanent) shape when induced by an external stimulus (trigger), such as temperature change. == Properties of shape-memory polymers == SMPs can retain two or sometimes three shapes, and the transition between those is often induced by temperature change.
Shape-memory polymers (SMPs) are polymeric smart materials that have the ability to return from a deformed state (temporary shape) to their original (permanent) shape when induced by an external stimulus (trigger), such as temperature change. == Properties of shape-memory polymers == SMPs can retain two or sometimes three shapes, and the transition between those is often induced by temperature change.
Source: Wikipedia "Shape-memory polymer" · CC BY-SA 4.0
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