Olujinmi M Folarin, Emmanuel R Sadiku and Arjun Maity
Keywords: Preparation, characterization, nanocomposite, nanoparticles, poly(N-vinylcarbazole).
Abstract: A nanocomposite of poly(N-vinylcarbazole)(PNVC) and platinum (Pt) was prepared by simple solid state polymerization of N-vinylcarbazole (NVC) in the presence of platinic acid (H2PtCl6) at elevated temperature. The mechanism of the polymerization process was proposed. The nanocomposites, the extracted homopolymer and the Pt nanoparticles were characterized by FTIR, XPS, TEM and TGA. FTIR analysis confirmed the polymerization of NVC to PNVC in the presence of Pt ions. XPS studies revealed that the Pt nanoparticles formed contained both Pt(0) and Pt(II). The presence of polaron in the H2PtCl6 doped NVC during polymerization was confirmed by ESR. TEM analysis revealed the cementation of the Pt nanoparticles on the PNVC. Thermo gravimetric stability studies showed that PNVC-Pt nanocomposite is thermally stable than the homopolymer.
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