Elastic polyaniline with EPDM and dodecylbenzenesulfonic acid as plasticizers

Elastomeric polyaniline was prepared by being mixed with ethylene-propylene -diene (EPDM) rubber in low concentrations (10, 20, or 30 wt %). The mixtur e was made in an internal mixer coupled to a torque rheometer. The polyanil ine was doped with dodecylbenzenesulfonic acid (DBSA) via reactive processi ng during the mixing. When the EPDM rubber was added to the polyaniline and DBSA, the doping reaction was not interrupted, as demonstrated by an incre ase in the torque values. We chose the relative DBSA and EPDM concentration s to obtain the highest conductivities (10(-1) to 10(-3) S cm(-1)) and the best mechanical properties. (C) 2001 John Wiley & Sons, Inc.