Synthesis of hydrophilic polypyrrole thin films by SILAR method


Hydrophilic polypyrrole (PPy) thin films were deposited by simple Successive Ionic Layer Adsorption and Reaction (SILAR) method on glass and stainless steel substrate from aqueous solution. The structural and optical properties were studied by means of X-ray diffraction (XRD), Fourier transforms infrared (FTIR) spectroscopy, and Fourier transforms Raman (FT-Raman) Spectroscopy and UVVIS spectrophotometer. The surface wettability properties were studied by means of Contact angle meter. The results showed the SILAR method allows the formation of amorphous and hydrophilic polypyrrole thin films. The polypyrrole thin film showed contact angle of in the range of θc = 30 deg. to θc = 48 deg. The calculated value of surface tension varies between 11.68 mN/m and 19.60 mN/m. Also, the values for work of adhesions were calculated.