Page 668 - Handbook of Thermal Analysis of Construction Materials

636 Chapter 16 - Paints and Coatings

branch mobility present in a non-conductive system. In TSC, a DC voltage
is applied to the sample heated above the transition temperature of interest.
This will cause orientation of the dipole(s) with the field. The sample is then
cooled to freeze the dipole into its reoriented configuration. The field is
removed and a heating ramp is applied. This causes depolarization of the
dipoles, creating a small current, which is a function of the molecular
mobility. Figure 1 illustrates a typical thermally stimulated current mea-
surement.

Figure 1. Schematic illustration of thermally stimulated current measurements.