Polypyrroles, assembly monomer

Collard et al. [57] reported the self-assembly of monomers, potassium 3-(3-alkylpyrrol-l-yl)propanesulfonates (Figure 5.14), and their subsequent electrochemical synthesis on gold electrodes to form lamellar structures of substituted polypyrrole. The fact that 3-(3-alkylpyrrol-l-yl)propanesulfonates possess amphiphilic character by virtue of the hydrophobic alkyl chain and hydrophilic ionic sulfonate head group, was used to form micellar solutions above critical concentrations. A... 

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). 

Detailed studies of the level and type of molecular orientation present in LB films of conducting polymers and their precursor monomer assemblies have been carried out for both polypyrrole and polythiophene based systems [23-27]. The results obtained from tiiese studies are summarized below. 

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