Abstract
The electrical conductivity of Plexiglas in an electric field of 2.6 kv/cm in the temperature range from 21° to 90°C was found to be represented by the sum of two exponentials, which have activation energies of 1.45 and 2.7 ev. At the higher temperatures the curves of current as a function of electric field strength from 2.6 to 29 kv/cm were resolved into the sum of a linear and an exponential term. The results suggest that ionic conduction dominates at low fields.