In-situ blends of polypyrrole/poly(3,4-ethylenedioxythiopene) using vapor phase polymerization technique

We report the In-situ blends of polypyrrole/poly(3,4-ethylenedioxythiophene) synthesized as thin-films on glass substrates using the vapor-phase polymerization (VPP) technique. The blend ratios of PPy to 3,4-ethylenedioxythiopene were controlled by adjusting the amount of liquid-phase monomers placed in the VPP chamber. ATR-FTIR spectroscopy was used to examine the composition of blends. The electrical conductivity of the PPy/PEDOT coating increased from 4 S/cm for the pristine PPy to 58 S/cm in the case of an EDOT ratio of 1.0. Color and light transmittance changes were observed. The surface roughness values increased from 2.94 nm to 16.67 nm.