The loss modulus (e'') is a measure of the energy dissipation in a material when it is subjected to oscillatory deformation. It quantifies how much mechanical energy is lost as heat during the deformation process, reflecting the viscoelastic behavior of polymers. A higher loss modulus indicates that the material has more viscous characteristics, while a lower value suggests that it behaves more elastically, connecting its behavior to thermal transitions and changes in material properties.
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