Radiation shielding tests of crosslinked polystyrene-b-polyethyleneglycol block copolymers blended with nanostructured selenium dioxide and boron nitride particles

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buir.contributor.authorOrtaç, Bülend
buir.contributor.orcidOrtaç, Bülend|0000-0002-1104-7459
dc.citation.epage31en_US
dc.citation.issueNumber3en_US
dc.citation.spage1en_US
dc.citation.volumeNumber12en_US
dc.contributor.authorCinan, Zehra Merve
dc.contributor.authorErol, Burcu
dc.contributor.authorBaskan, Taylan
dc.contributor.authorMutlu, Saliha
dc.contributor.authorOrtaç, Bülend
dc.contributor.authorSavaskan Yilmaz, Sevil
dc.contributor.authorYilmaz, Ahmet Hakan
dc.date.accessioned2023-03-02T13:13:07Z
dc.date.available2023-03-02T13:13:07Z
dc.date.issued2022-02-01
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractIn this work, gamma-ray shielding features of crosslinked polystyrene-b-polyethyleneglycol block copolymers (PS-b-PEG) blended with nanostructured selenium dioxide (SeO2 ) and boron ni-tride (BN) particles were studied. This research details several radiation shielding factors i.e., mass attenuation coefficient (µm ), linear attenuation coefficient (µL ), radiation protection efficiency (RPE), half-value layer (HVL), tenth-value layer (TVL), and mean free path (MFP). The irradiation properties of our nanocomposites were investigated with rays from the152 Eu source (in the energy intervals from 121.780 keV to 1408.010 keV) in a high-purity germanium (HPGe) detector system, and analyzed with GammaVision software. Moreover, all radiation shielding factors were determined by theoretical calculus and compared with the experimental results. In addition, the morphological and thermal characterization of all nanocomposites was surveyed with various techniques i.e., nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM). Acceptable compatibility was revealed and observed in all nanocomposites between the experimental and theoretical results. The PS-b-PEG copolymer and nanostructured SeO2 and BN particles exerted a significant effect in enhancing the resistance of the nanocomposites, and the samples with high additive rates exhibited better resistance than the other nanocomposites. From the achieved outcomes, it can be deduced that our polymer-based nanocomposites can be utilized as a good choice in the gamma-irradiation-shielding discipline. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.en_US
dc.description.provenanceSubmitted by Cem Çağatay Akgün (cem.akgun@bilkent.edu.tr) on 2023-03-02T13:13:07Z No. of bitstreams: 1 Radiation_Shielding_Tests_of_Crosslinked_Polystyrene-b-Polyethyleneglycol_Block_Copolymers_Blended_with_Nanostructured_Selenium_Dioxide_and_Boron_Nitride_Particles.pdf: 10703637 bytes, checksum: 7d0b25c9a920adfbfb1a658166b9885d (MD5)en
dc.description.provenanceMade available in DSpace on 2023-03-02T13:13:07Z (GMT). No. of bitstreams: 1 Radiation_Shielding_Tests_of_Crosslinked_Polystyrene-b-Polyethyleneglycol_Block_Copolymers_Blended_with_Nanostructured_Selenium_Dioxide_and_Boron_Nitride_Particles.pdf: 10703637 bytes, checksum: 7d0b25c9a920adfbfb1a658166b9885d (MD5) Previous issue date: 2022-02-01en
dc.identifier.doi10.3390/nano12030297en_US
dc.identifier.issn20794991
dc.identifier.urihttp://hdl.handle.net/11693/112025
dc.language.isoEnglishen_US
dc.publisherMDPIen_US
dc.relation.isversionofhttps://dx.doi.org/10.3390/nano12030297en_US
dc.source.titleNanomaterialsen_US
dc.subjectAttenuation characteristicsen_US
dc.subjectBoron nitrideen_US
dc.subjectGamma shielden_US
dc.subjectNanocompositeen_US
dc.subjectPolystyrene-b-polyethyleneglycolen_US
dc.subjectProtection materialen_US
dc.subjectSelenium dioxideen_US
dc.titleRadiation shielding tests of crosslinked polystyrene-b-polyethyleneglycol block copolymers blended with nanostructured selenium dioxide and boron nitride particlesen_US
dc.typeArticleen_US

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