These integrate the self-organizing properties of liquid crystals with polymer elasticity. They can respond to light or heat, allowing for autonomous motion—such as a film that curls toward the sun like a leaf.
At the heart of an elastomer’s "deep" nature is a unique thermodynamic paradox. Unlike metals, which derive their strength from rigid crystal lattices, elastomers are composed of long, amorphous molecular chains tethered together by sparse "cross-links". When an elastomer is at rest, these chains exist in a state of maximum disorder or high entropy. Elastomer
Often called "artificial muscles," these materials change shape when an electric field is applied. They are being utilized to build soft robots that move with the fluid grace of biological organisms rather than the jerky mechanical motions of traditional machines. Unlike metals, which derive their strength from rigid