Nonlinear electrical breakdown of polymer dielectric materials under microwave conditions

In this paper, using the nonlinear Schrodinger equation and Continuum Approximation Method, the basic equations defining the motion of an electron in a polymer molecular chain excited by microwave radiation have been established. The solutions of the equations and the energy of the polymer system have been obtained. The result shows that the interaction of an electron with chain deformation stabilizes its motion (quasi-superconducting state). For polyisobutene radiated by microwaves in constant intensity, calculation is in agreement with experimental measurement for nonlinear breakdown voltage. It would be important to seek the cause of a decrease in the breakdown voltage for polymer materials under radiation conditions.