The intensively enhanced conductivity of polyelectrolytes by amphiphilic compound doping

Abstract

A simple amphiphilic compound, pyrenesulfonic acid (PSA), interacts with the hydrophobic moiety of a copolymer (sulfonated poly(styrene-b-isoprene-b-styrene), s-SISH) and simultaneously provides hydrophiles of –SO3H. Doping 2% PSA to the membranes of s-SISH enhances its very low conductivity by 26 times from 2.0 × 10−3 S cm−1 to 5.3 × 10−2 S cm−1.