Characterization of poly-{trans-[RuCl2(vpy)4 ]-styrene-4-vinylpyridine} impregnated with silver nanoparticles in non aqueous medium

作者: Karen Segala , Rosilene L. Dutra , Eric N. de Oliveira , Liane M. Rossi , Jivaldo R. Matos

DOI: 10.1590/S0103-50532006000800028

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摘要: The synthesis and characterization of a new polymeric material composed poly-{trans-[RuCl2(vpy)4 ]-styrene-4-vinylpyridine} impregnated with silver nanoparticles are here described. This was obtained by non aqueous polymerization reaction involving trans-[RuCl2(vpy)4], styrene (sty) 4-vinylpyridine (4-vpy), using benzoyl peroxide as initiator. particles nanometric dimensions were confirmed transmission electron microscopy (TEM) UV-visible spectroscopy. terpolymer morphology characterized scanning (SEM). Thermal properties analyzed thermal gravimetric analysis (TGA) differential calorimetry (DSC). antimicrobial action the polymer evaluated use Gram positive negative microorganisms, Staphylococcus aureus (ATCC 25923) Escherichia coli 25922), respectively. activity presence bacterial growth inhibition halo in seeded culture media.

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