In this study, gold/copolymer core−shell nanocomposites as a new metal-polymer composite have been obtained by in situ polymerization. During the polymerization, gold nanoparticles were highly stabilized throughout the copolymer matrix. Fabricated nanocomposites have been characterized by UV-Visible, and Attenuated total reflection -Fourier transform infrared (ATR-FTIR) spectrophotometry. Structure and morphology of synthesized nanoparticles were analyzed by atomic force microscopy (AFM) and Electron Microscopy/Energy-Dispersive X-ray Spectroscopy SEM/EDX. The electro-activity of synthesized Au/copolymer nanoparticles were studied with electrochemical impedance spectroscopy (EIS).