Structure and conducting properties of thermoplastic composites of polypropylene and polyaniline protonated in solid state

The paper presents results of studies on composites made from polypropylene (PP) modified with polyaniline (PANI) doped with phenylophosphonic acid (PPA). For better miscibility of the components, lauryl gallate (LG) was added. Obtained results show that the amount of PPA and LG affect the thermal and structural properties of the composites. Changes of thermal properties, and particularly of structure, caused by addition of PPA and LG, affect the conductivity of the composites. The results discussed in the paper were obtained using differential scanning calorimetry (DSC) and optical microscopy as well as wide angle X-ray scattering (WAXS) and small angle X-ray scattering (SAXS).