Preparation of conducting polymer/insulating polymer composite films using molecular self-assembly process

By exposing low-density polyethylene to an atmosphere of fuming sulfric acid, sulfonated low-density polyethylenes (SPE) were prepared and the degree of surface sulfonation for treated film was determined as the weight-increase per unit area. Poly pyrrole (PPy) films on the surface of SPE were grew using a molecular self-assembly process. The electrochemical properties of PPy/SPE composite films have been investigated and their functional applications have also been proposed.