• Anasuya K V

Abstract: Nickel compounds mainly find their use as catalysts. Bacteriostatic compounds, fungicides and some food preservatives contain copper compounds. Poly(vinylpyrrolidone) is a water soluble polymer having many eco-friendly uses due to its unique properties like low toxicity, biological compatibility, comparatively inert behavior towards many compounds, complex forming ability, resistance to thermal degradation in solution, film forming ability etc., In the proposed work, the transition metal complexes of poly(vinylpyrrolidone) - copper and poly(vinylpyrrolidone) - nickel were prepared by using aqueous solution of PVP (30K) and alcoholic solution of hydrated copper chloride and hydrated nickel chloride at room temperature with different molar composition. Polymer-metal complexes in the solid state were obtained by evaporation of the solvent. They were characterized by solubility studies, spectral analysis such as FTIR, 1H-NMR and 13C-NMR, thermal analysis by DSC studies and magnetic properties by VSM technique. A comparative study of the spectral data of the complexes helps in optimizing the conditions for the preparation of these eco-friendly complexes. Another important field of application of these polymers is in the development of antimicrobial agents. Poly(vinylpyrrolidone), as a polymer, does not exhibit any antimicrobial activity. The PVP – metal complexes prepared were checked for the antimicrobial property with different bacteria and fungi by Agar Well Diffusion method. The antimicrobial polymers have many advantages such as chemical stability, nonvolatile nature and capacity to permeate through skin, etc., over the conventional antimicrobial agents with low molecular mass.

Polymer-metal complexes, copper chloride, nickel chloride, FTIR, NMR, DSC, VSM.

"SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL PROPERTIES OF COMPLEXES OF POLY(VINYLPYRROLIDONE) WITH NICKEL(II) AND COPPER(II) - A COMPARATIVE STUDY ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 12, page no.f199-f206, December-2021, Available :http://www.jetir.org/papers/JETIR2112525.pdf

"SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL PROPERTIES OF COMPLEXES OF POLY(VINYLPYRROLIDONE) WITH NICKEL(II) AND COPPER(II) - A COMPARATIVE STUDY ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 12, page no. ppf199-f206, December-2021, Available at : http://www.jetir.org/papers/JETIR2112525.pdf