Influence of polymerization conditions on morphologies of polypyrrole

Using a needle-circle electrode configuration, we investigated the relation ship between morphologies of polypyrrole (PPy) and polymerization condition s, such as the kinds of electrolyte, solvent and electrode, the concentrati ons of electrolyte and monomer, the applied voltages, etc. The various morp hologies of PPy are classified into seven types. The influence of the subst rate was also taken into account. Four types of morphologies of PPy under t he mica are shown. We recently obtained organized PPy particles by the indu ction of the mica substrate. The neuron network-like interconnections of PP y fabricated by controlling the polymerization conditions are shown. (C) 19 98 Elsevier Sciences Ltd. All rights reserved.