A study of the biophysical properties of polystyrene films incorporated with clove oil as bio-based plasticizer.

. Polystyrene based films loaded with different concentrations of clove oil (0, 10, 20, 30 and 40 wt.%) were prepared using solution casting technique. The properties the novel composites are characterized dielectric spectroscopy (DS), attenuated total reflection-fourier transform infrared (ATR-FTIR), scanning electron microscope (SEM), X-ray diffraction (XRD),UV absorption spectra, contact angle measurements, mechanical analysis, in addition to test anti-bacterial effect against two strains microorganisms: Escherichia coli(gram-negative bacteria) Staphylococcus aureus (gram-positive bacteria). According study, by increasing CLO content both permittivity ', loss  electrical conductivity  increases. measurements indicate that, PS-CLO demonstrate hydrophilic behavior compared pure PS. Tensile strength R values decreased elongation at break R found be increased. increase may due softening CLO. incorporation improved light transmittance films. 40% sample have antibacterial activity E. coli S. aureus.