Blends of polypyrrole and poly

Poly(ethylene terephthalate) is used to produce fibers or is processed as a thermoplastic material by injectionmolding or blow-molding. Sorption of pyrrole in films of this polymer followed by immersion of the film in an aqueous FeCls solution produced blends of polypyrrole and poly(ethylene tere late). The 30 /zm thick film obtained presented high optical transmittance at 633 nm and a conductivity in the range of 0.03-0.1 S cm [65]. Authors suggest that polypyrrole is distributed uniformly in the free volume of the poly(ethylene tereftalate) host, forming a conducting network at low concentrations (5%). 

A blend of polypyrrole and poly(ethylene oxide) was prepared in a heterogeneous process where a solid-state electrochemical cell was immersed in a pyrrole solution. The cell was assembled coating a substrate containing the working and reference electrodes with a film of poly(ethylene oxide) doped with a lithium salt. A Ni sieve was placed on the top of the polymer film and a pulsed (or continuous) potential was applied after immersion of the assembled cell in a pyrrole solution [128]. Cyclic voltammetry of the material obtained was run after saturation with acetonitrile vapors. The solvent... 

A careful study of the electrochemical properties of a blend of polypyrrole and poly(styrene sulfonate), prepared by the electrochemical codeposition method, is also described in the literature [133]. The authors used dry acetonitrile as solvent, and obtained signifi-... 

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