Irradiation induced modification of optical properties of PANI-Cu/PMMA and PANI-Cu/CTA nanocomposites

Nouh, S. A.; Barakat, M. M.; Gupta, Ram S.; Benthami, K.; Bahareth, Radiyah A.

doi:10.1080/10420150.2021.1891067

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…Nowadays, the fabrication of nanocomposites (NCs) using polymer blends and nanoparticles (NPs) has attained the consideration of many authors owing to the possibility of its use in several fields [1]. These polymeric NCs have an individual character, unlike those of bulk, due to the tiny size of the embedded NPs [2].…”

Section: Introductionmentioning

confidence: 99%

Structural, Thermal, and Optical Studies of Gamma Irradiated Polyvinyl Alcohol-, Lignosulfonate-, and Palladium Nanocomposite Film

et al. 2022

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Nanocomposite (NC) films of polyvinyl alcohol (PVA), lignosulfonate (Lg), and nanosized palladium (Pd) were synthesized by ex-situ casting method. Samples from the synthesized PVA-Lg/Pd NC films were irradiated with 5–100 kGy γ doses. The effect of γ doses on the structural, thermal, and optical characteristics of the NC films were studied using different characterization techniques. The results indicated that the γ irradiation improves the decomposition temperature from 227 to 239 °C, signifying an increase in the thermal stability of the NC films. This was accompanied by a reduction of the melting temperature due to the increase of the amorphous phase. This can be attributed to the dominance of crosslinking. On the other hand, the refractive index increased from 2.21 to 2.32 while increasing the γ dose up to 100 kGy. This was associated with a reduction of the optical bandgap from 3.49 to 3.30 eV, which could be attributed to the increase in the amorphous phase as a result of crosslinking. This indicates an enhancement of the spreading of the NPs inside the blend matrix due to γ irradiation. This results in a more compacted construction of the PVA-Lg/Pd NC films. Furthermore, we used the Commission Internationale de E’Claire (CIE) method to estimate the change in color among the irradiated NC films and the pristine film. The PVA-Lg/Pd NC attained a significant color difference value greater than five, meaning permanent color changes.

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Section: Introductionmentioning

confidence: 99%

Structural, Thermal, and Optical Studies of Gamma Irradiated Polyvinyl Alcohol-, Lignosulfonate-, and Palladium Nanocomposite Film

et al. 2022

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Influence of gamma rays on the optical characteristics of CPVC/Ag nanocomposite film

Barakat

2023

Journal of Taibah University for Science

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Tailoring the structural and optical properties of Makrofol BL 2-4 nuclear track detector using laser radiation

Barakat

Tommalieh

Mahrous

et al. 2022

Journal of Laser Applications

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Makrofol BL 2-4 is a nuclear track detector film that resembles the Makrolon polycarbonate. Compared with Makrofol DE, it includes an outstanding die-cutting recital together with elevated light transmission. It is applied in several radiation detection fields. Samples from Makrofol films have been exposed to laser pulses with fluences ranging from 5 to 35 J/cm2. It is worth stating that this paper is almost the first one to show the change in the properties of Makrofol BL 2-4 using IR laser radiation. The resultant outcome of laser irradiation on the structural and optical properties of the Makrofol samples has been investigated by x-ray diffraction and UV spectroscopy. The optical bandgap, refractive index, Urbach energy, optical dielectric parameters, tristimulus values, chromaticity coordinates, color intercepts, and color intensity have been calculated and interpreted based on laser fluences. The optical bandgap decreased from 4.26 to 4.14 eV (n = 0.5) with increasing laser fluence up to 35 J/cm2, accompanied with an increase in the Urbach energy. This could be attributable to the dominance of cross-linking that damages the crystalline portion. Additionally, nonexposed Makrofol is nearly colorless. It showed noteworthy sensitivity to color changes by laser irradiation, as the color intensity reached a value greater than 5. This is a sensible contest in marketable reproduction in the printing press.

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Irradiation induced modification of optical properties of PANI-Cu/PMMA and PANI-Cu/CTA nanocomposites

Cited by 4 publications

References 30 publications

Structural, Thermal, and Optical Studies of Gamma Irradiated Polyvinyl Alcohol-, Lignosulfonate-, and Palladium Nanocomposite Film

Structural, Thermal, and Optical Studies of Gamma Irradiated Polyvinyl Alcohol-, Lignosulfonate-, and Palladium Nanocomposite Film

Influence of gamma rays on the optical characteristics of CPVC/Ag nanocomposite film

Tailoring the structural and optical properties of Makrofol BL 2-4 nuclear track detector using laser radiation

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