Preparation and Characterization of Polyheterocycle/Polyelectrolyte Molecular Composites

摘要

The electrochemical preparation of polyheterocycle polyelectrolyte molecular composites of high electrical conductivity, mechanical integrity and specific ion transport has been pursued. A water soluble polyelectrolyte derivative of Kevlar has been developed and utilized as electrolyte in the electropolymerization of pyrrole to yield polypyrrole/poly(p-phenyleneterephthalamide propane sulfonate). This material exhibits conductivities up to 1 ohm/cm and improved thermal stabilities when compared to typical polypyrroles. The electropolymerization/deposition of polyheterocycle/polyelectrolyte molecular composites, specifically polypyrrole/poly(styrene sulfonate), yields electrically controllable membranes with cation specific transport. Electrochemical quartz microbalance studies have been used to analyze composite formation and ion transport. Electrically conducting, Macromolecular composites, Polypyrrole Polyelectrolytes, Modified kevlar. (mjm)