Characterization, electrical and magnetic properties of PVA films filled with FeCl3–MnCl2 mixed fillers

El‐Khodary, A.; Oraby, A.H.; Abdel-Naby, M.

doi:10.1016/j.jmmm.2008.01.030

Cited by 32 publications

(14 citation statements)

References 33 publications

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“…After doped the average oscillator position values decreased and with increasing doping concentration to 5wt%, the average oscillator strength increased with impurity percentage as shown in Table 1. The skin depth x could be calculated using the following relation [18]: x = λ / 2πk (5) Where k is the extinction coefficient. Figure 6 shows the variation of skin depth as a function of wavelength for all films.…”

Section: Resultsmentioning

confidence: 99%

“…The structural, optical, and electrical properties of these polymeric materials can be enhanced by incorporation of filler into a polymer matrix, because dispersed filler will enhance various physical properties of the host polymer [5]. In this paper, we report and discuss the optical characterization of PMMA films doped with different concentrations of Sb2O3 nanoparticles by UV-Vis spectra.…”

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confidence: 99%

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Effect of Nano Sb2O3 on the Dispersive Optical Constants of PMMA Films

Al-Taa’y

Nabi

Oboudi

et al. 2017

SQU Journal for Science

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Pure and Antimony Trioxide Sb2O3 doped PMMA films were prepared by the casting method. Optical absorption measurements in the wavelength range 200-800 nm were studied by using a computerized UVVis spectrophotometer (Shimadzu UV-1601 PC) and these confirmed that PMMA films have a direct band gap that decreases from 5.15 to 4.66 eV as the doping concentration increases to 5wt%. The increase in the density of localized states from 8.9 to 74.5 meV causes an expansion in the Urbach tail and consequently decreases the energy gap. The dispersion of the refractive index was analyzed using the concept of a single oscillator. The values of the single oscillator energy were 32.70, 13.59, 7.06, and 4.58 eV, while the dispersion energy values were 4.36, 49.04, 21.76 and 14.15 eV for the pure, and 3%, 4% and 5% Sb2O3 for the doped PMMA films respectively. The single-term Sellmeier were determined, and the average oscillator position was investigated, the value of which decreased with increasing doping concentration. The value of average oscillator strength increased with increasing Sb2O3 concentration to 5wt%. Skin depth and optical conductivity could be calculated, and results show a decrease in Skin depth with an increasing impurity percentage, but an increase of optical conductivity with greater impurity

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Effect of Nano Sb2O3 on the Dispersive Optical Constants of PMMA Films

Al-Taa’y

Nabi

Oboudi

et al. 2017

SQU Journal for Science

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“…Polymer structures, especially copolymers, are attractive due to their mechanical [1], optical [2][3][4] and electrical [5,6] properties. Hydrophilically modified polymers have been used in coatings, paints, cosmetics, drilling fluids, in food industry, for petroleum recovery and also in the drug release systems in medical industry [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Poly(2-Hydroxyethyl~Methacrylate)-co- Poly(4-Vinyl Pyridine) Copolymers [COP2,4] Irradiated: an EPR study

et al. 2016

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Poly(2-hydroxyethyl methacrylate)-co-poly(4-vinyl pyridine) and poly(HEMA)-co-poly-(4-VP) copolymers were synthesized by free radical polymerization. K2S2O8 was used as an initiator. Chain lengths of the copolymer was changed by varying the monomer/initiator ratio. These polymers have molarites of 2.6 and 2.1 respectively and are called COP2 and COP4. The samples were exposed to gamma rays at room temperature. After irradiation, the EPR spectra of COP2 and COP4 were recorded between 120 K and 450 K. From the temperature dependence of the line intensity, it was concluded that unpaired spin concentration in the irradiated samples has been changing with temperature. A theoretical study, presented in this report, was aimed to test success of the machine learning methods and to select the best learning method.

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“…Extensive observations have been made by several workers to study the molecular motion and the charge carrier migration in variety polymer composites [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Influence of Woven Roving Fiber E-Glass on Electrical Properties of Polyester Composite

Tahir

Jamal

Abdullah

2013

JNUS

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The conductivity and dielectric permittivity of Polyester filled with different volume fraction of woven roving fiber E-glass prepared by a casting method has been measured, over temperature and frequency (40 − 1 ). It was observed that the conductivity increases with increasing frequency and temperature, whereas the dielectric permittivity for all samples shows almost independent on frequency, it was increases with increasing temperature and fiberglass volume fraction. The calculated values of the electrical conductivity shows it was obeys power law in which the frequency exponent is in the range of 0.84 < < 0.98, and it was decrease with increasing woven roving fiber E-glass.

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Characterization, electrical and magnetic properties of PVA films filled with FeCl3–MnCl2 mixed fillers

Cited by 32 publications

References 33 publications

Effect of Nano Sb2O3 on the Dispersive Optical Constants of PMMA Films

Effect of Nano Sb2O3 on the Dispersive Optical Constants of PMMA Films

Analysis of Poly(2-Hydroxyethyl~Methacrylate)-co- Poly(4-Vinyl Pyridine) Copolymers [COP2,4] Irradiated: an EPR study

Influence of Woven Roving Fiber E-Glass on Electrical Properties of Polyester Composite

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