An aqueous blend comprising water, a first conjugated polymer having a conductivity of greater than 10.sup.-7 S/cm and a second conjugated polymer having a conductivity greater than 10.sup.-7 S/cm wherein the conductivities of the first conjugated polymer and the second conjugated polymer are measured using a four point probe method prior to preparing the aqueous blend. A film is also presented comprising a first conjugated polymer having a conductivity of greater than 10.sup.-7 S/cm and a second conjugated polymer having a conductivity greater than 10.sup.-7 S/cm formed by (a) depositing the recited aqueous blend onto an article and (b) removing the water-containing solution to form the film on the article.