Effects of Polymerization Variables on the Electrical Conductivity of Polypyrrole-Anionic Spherical Polyelectrolyte Brush (PPy/ASPB) Composite

摘要

A series of polypyrrole (PPy) doped with anionic spherical polyelectrolyte brushes (ASPB) (PPy/ASPB composite) at different polymerization variables (the amount of ASPB, molecular weight of grafted chains, polymerization time, and polymerization temperature) were synthesized by means of chemical oxidative polymerization, characterized with FTIR and analyzed by electrical conductivity measurements. Results verified that long grafted chains and low temperature helped to increase the electrical conductivity. ASPB acted both as dopant and as template in the polymerization process as a result of offering favorable space factors for the growth of pyrrole.