Abstract
Depolarized light scattering of amorphous polycarbonate (PC) is angular independent. The amount of scattering did not give any evidence for the existence of a liquid crystal type of phase, consisting of regions with a strong orientation correlation between chain segments. Annealing of PC belowTg does not affect its scattering behaviour. Therefore, observed changes in physical properties such as the mechanical behaviour cannot be interpreted by an appreciable increase of intermolecular orientation correlation. If PC is heated at 190 °C for several days, an angular dependent scattering component appears. This component arises from the formation of spherulites with a sheaf-like structure.
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