Preparation of Emulsion Polymerization from Styrene Vinylpyrrolidone and Studying their Thermal Stability and Electrical Conductivity

Authors	Azza Mazrouaa¹, Abdelfatah Badawi¹, Nahla Mansour¹, Mohamed Fathy¹, Maher Elsabee²
Affiliations	¹ Petrochemical Department, Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El-Zomor St., Nasr City, 11727 Cairo, Egypt ² Department of Chemistry, Faculty of Science, Cairo University, 12613 Giza, Egypt
Е-mail	azza_mazroua2005@yahoo.com
Issue	Volume 5, Year 2013, Number 4
Dates	Received 24 August 2013; published online 31 January 204
Citation	Azza Mazrouaa, Abdelfatah Badawi, Nahla Mansour, et al., J. Nano- Electron. Phys. 5 No 4, 04063 (2013)
DOI
PACS Number(s)	47.57.jb, 72.80.Le
Keywords	Styrene (2) , Vinyl pyrrolidone, Copolymer, Emulsion polymerization, Nanometal oxides, FTIR (30) , 1HNMR spectroscopy, TEM and electrical conductivity.
Annotation	Copolymer styrene and vinylpyrrolidone were prepared using different techniques. The emulsion polymerization technique was chosen as it gives the highest molecular weight with polymer particles in the nanorange. The polymer nanocomposites were prepared using Pickering emulsion polymerization stabilized by adding inorganic nanosized particles. Ag nanometal and nanometal oxides of CuO, ZnO and AgO were added into the copolymer for enhancing its thermal stability and electrical conductivity. The nanocomposite chemical structure was confirmed by using FTIR, 1HNMR spectroscopy and TEM. Transmission electron microscopy, TEM photos show that the copolymer particles are almost in the nanoscale region. The thermal stability (TGA) of styrene-co-vinylpyrrolidone in the presence of the nanometal and nanometal oxides was slightly increased. The electrical conductivity of these nanocomposites using dc at different temperatures was measured. The data reveal that the nanocomposites are enhanced by adding the nanometal and nanometal oxides.
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