Study on hard X-ray absorbing properties of nanocluster polyaniline

Hosseini, Seyed Hossein

doi:10.1016/j.mssp.2015.04.050

Cited by 12 publications

(2 citation statements)

References 11 publications

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“…When selecting a shield to serve a particular function, numerous variables are taken into consideration in order to decide on the material that will be ideal for performing that function. For example, concrete has been shown to be Polymers 2023, 15, 2883 2 of 13 quite efficient against X-rays and neutrons, making it an excellent material to employ as a liner for the walls of rooms containing machinery that utilizes radiation. In certain situations, concrete can be an excellent barrier; however, the material's drawbacks, such as its tendency to crack and that it is unable to be moved, make it ineffective for a variety of other applications [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Although polymers normally perform less well at radiation shielding than metals, their efficiency can be greatly increased by adding more radiation shielding chemicals to the polymer matrix [13]. Recently, polymer composites have drawn interest as viable, lightweight replacements for metal radiation protective technologies [14][15][16]. Polymers are multipurpose substances that are simple to mold for the intended applications.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation

et al. 2023

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This study aims to investigate the impact of CeO2 content and particle size on the radiation shielding abilities of polydimethylsiloxane, also known as silicon rubber (SR). We prepared different SR samples with 10, 30, and 50% of micro and nano CeO2 and we measured the linear attenuation coefficient (LAC) for these samples. We found that the LAC of the SR increases by increasing the CeO2 and all prepared SR samples had higher LACs than the pure SR. We examined the effect of the size of the particles on the LAC and the results demonstrated that the LAC for nano CeO2 is higher than that of micro CeO2. We investigated the half value layer (HVL) for the prepared SR samples and the results revealed that the SR with 10% micro CeO2 had a greater HVL than the SR with 10% nano CeO2. The HVL results demonstrated that the SR containing nanoparticles had higher attenuation effectiveness than the SR with micro CeO2. We also prepared SR samples containing CeO2 in both sizes (i.e., micro and nano) and we found that the HVL of the SR containing both sizes was lower than the HVL of the SR with nano CeO2. The radiation protection efficiency (RPE) at 0.059 MeV for the SR with 10% micro and nano CeO2 was 94.2 and 95.6%, respectively, while the RPE of SR containing both sizes (5% micro CeO2 + 5% micro CeO2) was 96.1% at the same energy. The RPE results also indicated that the attenuation ability was improved when utilizing the micro and nano CeO2 as opposed to the micro CeO2 or nano CeO2 at 0.662, 1.173, and 1.333 MeV.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation

et al. 2023

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CSA-doped PANI semiconductor nanofilms: synthesis and characterization

Geethalakshmi

Muthukumarasamy²,

Balasundaraprabhu³

2015

J Mater Sci: Mater Electron

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Camphorsulfonic acid doped polyaniline (PANI-CSA) prepared by chemical oxidative polymerization is dip coated on glass plates with three different PANI:CSA weight ratios (1:0.5, 1:1 and 1:2). Films of thickness being \100 nm are termed as nanofilms. Fourier transform infrared spectroscopy indicated the presence of dopant and increase in degree of polymerization with increase in dopant level. X-ray diffraction studies revealed the amorphous nature of the films. Scanning electron microscopy showed very smooth morphology without any crack or pores. Hall-effect analysis showed that the increase in CSA weight ratio appreciably increases the conductivity of PANI-CSA films due to increase in carrier concentration and it also represents the semiconductivity (P-type) nature in all the films. UV-visible absorption spectra and photoluminescence spectra revealed that high intense absorption and emission peaks occur for the PANI-CSA film with PANI:CSA weight ratio (1:2). This appreciable increase is due to increase in charge carriers. Photoluminescence study of PANI-CSA films excited using 300 nm shows high intense peaks at 361 and 494 nm and a weak peak at 410 nm which confirmed the semiconducting nature of the film.

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Synthesis and enhancement of microwave absorption property by coating silicon dioxide and polyaniline for Fe-Co alloy

Huang

Ding

et al. 2019

Journal of Magnetism and Magnetic Materials

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Study on hard X-ray absorbing properties of nanocluster polyaniline

Cited by 12 publications

References 11 publications

Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation

Effect of Cerium (IV) Oxide Particle Size on Polydimethylsiloxane Polymer to Form Flexible Materials against Ionizing Radiation

CSA-doped PANI semiconductor nanofilms: synthesis and characterization

Synthesis and enhancement of microwave absorption property by coating silicon dioxide and polyaniline for Fe-Co alloy

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