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Gamma Irradiation and the Radiation Shielding Characteristics: For the Lead Oxide Doped the Crosslinked Polystyrene-b-Polyethyleneglycol Block Copolymers and the Polystyrene-b-Polyethyleneglycol-Boron Nitride Nanocomposites.
Cinan, Zehra Merve; Erol, Burcu; Baskan, Taylan; Mutlu, Saliha; Savaskan Yilmaz, Sevil; Yilmaz, Ahmet Hakan.
Afiliación
  • Cinan ZM; Faculty of Sciences, Department of Physics, Karadeniz Technical University, Trabzon 61080, Turkey.
  • Erol B; Faculty of Arts and Sciences, Department of Physics, Recep Tayyip Erdogan University, Rize 53100, Turkey.
  • Baskan T; Faculty of Sciences, Department of Physics, Karadeniz Technical University, Trabzon 61080, Turkey.
  • Mutlu S; Faculty of Sciences, Department of Chemistry, Karadeniz Technical University, Trabzon 61080, Turkey.
  • Savaskan Yilmaz S; Faculty of Sciences, Department of Chemistry, Karadeniz Technical University, Trabzon 61080, Turkey.
  • Yilmaz AH; Faculty of Sciences, Department of Physics, Karadeniz Technical University, Trabzon 61080, Turkey.
Polymers (Basel) ; 13(19)2021 Sep 24.
Article en En | MEDLINE | ID: mdl-34641065
This work aimed to research the efficiency of gamma irradiation and shielding characteristics on the lead oxide (PbO) doped the crosslinked polystyrene-b-polyethyleneglycol (PS-b-PEG) block copolymers and polystyrene-b-polyethyleneglycol-boron nitride (PS-b-PEG-BN) nanocomposites materials. The crosslinked PS-b-PEG block copolymers and PS-b-PEG-BN nanocomposites mixed with different percentage rates of PbO were used to research gamma-ray shielding characteristics. The synthesis of the copolymer was done by emulsion polymerization methods. The characterization and morphological analyses of irradiated samples were explored handling with the Nuclear Magnetic Resonance (NMR), Fourier Transform Infrared Spectroscopy (FTIR), Gel Permeation Chromatography (GPC), Thermogravimetric Analysis (TGA), and Scanning Electron Microscope (SEM) methods. The gamma-rays that were emitted from the E 152u source were observed with a High Purity Germanium (HPGe) detector system and examined with a GammaVision computer program. Our samples, including the different percentage rates of the PS-b-PEG (1000, 1500, 10,000), BN, and PbO, were irradiated in various gamma-ray photon energy regions (from 121.78 keV to 1408.01 keV). Then, Linear-Mass Attenuation Coefficients (LACs-MACs), Half-Tenth Value Layer (HVL), Mean Free Path (MFP), and Radiation Protection Efficiency (RPE) values of the samples were calculated. Via crosschecking the acquired data from samples with and without PbO and BN, it was observed that, if the different percentage rates by weight nano-powder of PbO and BN are added in the polymer mixture, it can be used as a convenient shielding material against gamma rays.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Suiza

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Polymers (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Suiza