Thermal, mechanical, and electrical properties of epoxy resin/polyaniline-dodecylbenzenesulfonic acid blends

Electrically conductive blends were prepared by mixing a polyaniline-dodecybenzenesulfonic acid (PANI-DBSA) salt with epoxy resin (EP). The thermal, mechanical, and electrical properties of blends containing different amounts of PANI-DBSA are reported. The flexural properties were not significantly influenced by concentrations smaller than 7 wt.% PANT-DBSA, but after this content they were decreasing sharply. The electrical conductivity of the samples increased with the addition of PANI-DBSA, reaching a value higher than 10(-7) S/cm with 10 wt. % of PAPI-DBSA. (C) 2004 Elsevier B.V. All rights reserved.