Electroactive polymers ordered thin films

A number of derivates of pyrroles have been polymerized and manipulated into multilayer structures using the Langmiur-Blodgett technique [203]. This technique has been applied to manipulate electroactive conjugated polymers, mainly polypyrrole derivates, into multilayer thin films with well-defined layered structures and ordered molecular organizations [204]. In this way, amphiphilic polypyrroles and their precursors have been used, or soluble surface-active polypyrroles such as poly(3,4-dibutylpyrrole) [205] (Schemes 10.11 and 10.12). 

Highly ordered conductive polypyrroles have been obtained by polymerization of self-assembling electroactive monomers, such as potassium 3-(3-alkylpyrrol-1-yl) propane sulfonates [206,207]. Monomers with appropriate alkyl side-chain lengths (octyl to tetradecyl) form micelles in an aqueous solution, and polymerize giving lamellar, semicrystalline thin films, with a head-to-head bilayer type packing. Some of those polymers are soluble in water (Scheme 10.13). 

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