zum Directory-modus


Elastomers are cross-linked polymeric networks that can be bent and stretched requiring little force and will return to their original form when the stress is removed. This flexibility is due to cross-linking of their basic molecules. The macromolecules of elastomers form dense balls. If material made from elastomers is stretched, the balls are pulled apart without slipping and upon removal of the external force will return to the unstretched state which is less organized, i.e. the entropy is higher causing the elastomer to return to its original form. This is called entropy elasticity.