Synthesis of Blend Polymer (PVA / PANI)/Copper (1) Oxide Nanocomposite: Thermal Analysis and UV-Vis Spectra Specifications
نویسندگان
چکیده
Copper (1) oxide nanoparticles together with matrix polymers of polyvinyl alcohol (PVA) and polyaniline (PANI) composite films were synthesized, as these materials are importance in optoelectronic applications. Nanoparticles Cu2O produced by chemical precipitation. Polymerization aniline was carried out through polymerization an acidic medium. Structural, thermal, optical properties PVA+PANI/Cu2O nanocomposite inspected x-ray diffraction (XRD), scanning electron microscopy (SEM), fourier-transform infrared (FTIR), differential calorimeter (DSC) ultraviolet-visible spectroscopy (UV-Vis spectroscopy). X-ray peaks at 29.53°, 36.34°, 42.22° indicated the presence cuprous nanoparticles, having high dispersions limited size distributions. The estimated average ~ 17.1525 nm. A characteristic peak around 2θ = 18.5° attributed to periodical parallel perpendicular polymer chains, which denoted formation PANI. SEM results symmetrical dispersion inside hybrid PVA PANI matrix, being potentially useful for encapsulation acting a good capping agent. FTIR established nanocrystalline nature. DSC revealed appearance one single Tg decreased content 4% wt, followed increase that value increasing up 16%wt. Thermogram analysis embedded form showed exothermic (240-292)℃ affiliated cross-linking reaction, while Tm prepared nanocomposites is just about close polymer. there thermal stability due NPS within polymers. distinguishing 330, 347, 457 nm refer assigned π−π* transitions among benzenoid rings. absorption intensity 470 blended PVA+PANI 12% wt inter-band electrons core copper well oxide. This points quantity NPs leads increases amounts highly oxidized structures decreases doping length conjugation throughout incorporation into matrix. Depending on practical results, it can be said polymeric efficiently used photovoltaic technology
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ژورنال
عنوان ژورنال: Iraqi journal of science
سال: 2021
ISSN: ['0067-2904', '2312-1637']
DOI: https://doi.org/10.24996/ijs.2021.62.11.10