فهرست نشریات علمی دسترسی آزاد ایران

The study work includes the synthesis and characterization of three monomers based on a chalconic moiety containing hydroxyl groups in the para position. A condensation reaction was performed by combining MDI, TDI, and HDI with three monomers, which resulted in the effective synthesis of nine novel polyurethanes. Routine techniques such as Fourier-Transform Infrared (FTIR), Nuclear Magnetic Resonance (NMR) spectroscopy, X-ray diffraction (XRD), and Transmission Electron Microscopy (TEM) micrographs were used to determine the structures and properties of the prepared compounds. Additionally, the thermal behavior of the compounds was evaluated using thermogravimetric analysis (TG) analyses. The electrical conductivities of polyurethane were developed by incorporating conductive nanoparticles, such as silver nanoparticles, into the newly synthesized polyurethane nanocomposites. These nanocomposites exhibit good conducting performance when a mixture of silver nanoparticles and sodium chloride is incorporated into the polyurethanes. When nano silver and NaCl were used as dopants in PBT, the material exhibited 199.77 S/cm of the maximum electrical conductivity measured.