Maxwell stress and some electrical properties of polymers

In this paper, we show that several properties, namely charge concentration, mobility, light emission, photoconduction, etc. of various polymers vary with the square of the applied field above a given critical field. This means that these properties depend on the Maxwell stress induced by the applied field and not (or very little) on the internal space charge field. This also implies that molecular deformation is possibly the source of space charge. This means that the low and high field limits of the deformation process can be predicted from our model. Experimental results are in excellent agreement with our predictions suggesting, one more time, that space charge accumulation is the result of previous molecular deformation. Further work required for a better understanding of the proposed ideas is also discussed.