Adam-Gibbs theory

The Adam-Gibbs theory explains how the flow of a supercooled liquid slows down as it cools toward glass formation. It suggests that molecular movement relies on cooperative regions—groups of molecules working together—and that the size of these regions increases with decreasing temperature. Larger regions require more coordinated effort, making molecular rearrangements less frequent and slowing relaxation. This relationship connects the material's temperature, the size of these regions, and its viscosity or flow behavior, providing insight into how liquids become glassy and lose their ability to flow easily.