Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays
This study assesses the optical properties and conductivity of PVA–H3PO4 (polyvinyl alcohol–phosphoric acid) polymer film blend irradiated by gamma (γ) rays. The PVA–H3PO4 polymer film blend was prepared by the solvent-casting method at H3PO4 concentrations of 75 v% and 85 v%, and then irradiated up...
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Language: | English English |
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Multidisciplinary Digital Publishing Institute
2021
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Online Access: | https://eprints.ums.edu.my/id/eprint/32597/1/Optical%20properties%20and%20conductivity%20of%20pva%E2%80%93h3%20po4%20%28Polyvinyl%20alcohol%E2%80%93phosphoric%20acid%29%20film%20blend%20irradiated%20by%20%CE%B3-rays.pdf https://eprints.ums.edu.my/id/eprint/32597/3/Optical%20properties%20and%20conductivity%20of%20pva%E2%80%93h3%20po4%20%28Polyvinyl%20alcohol%E2%80%93phosphoric%20acid%29%20film%20blend%20irradiated%20by%20%CE%B3-rays%20_ABSTRACT.pdf |
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author | Susilawati Susilawati Saiful Prayogi Muhamad F. Arif Noor Maizura Ismail Muhammad Roil Bilad Muhammad Asy’ari |
author_facet | Susilawati Susilawati Saiful Prayogi Muhamad F. Arif Noor Maizura Ismail Muhammad Roil Bilad Muhammad Asy’ari |
author_sort | Susilawati Susilawati |
collection | UMS |
description | This study assesses the optical properties and conductivity of PVA–H3PO4 (polyvinyl alcohol–phosphoric acid) polymer film blend irradiated by gamma (γ) rays. The PVA–H3PO4 polymer film blend was prepared by the solvent-casting method at H3PO4 concentrations of 75 v% and 85 v%, and then irradiated up to 25 kGy using γ-rays from the Cobalt-60 isotope source. The optical absorption spectrum was measured using an ultraviolet–visible spectrophotometer over a wavelength range of 200 to 700 nm. It was found that the absorption peaks are in three regions, namely two peaks in the ultraviolet region (310 and 350 nm) and one peak in the visible region (550 nm). The presence of an absorption peak after being exposed to hυ energy indicates a transition of electrons from HOMO to LUMO within the polymer chain. The study of optical absorption shows that the energy band gap (energy gap) depends on the radiation dose and the concentration of H3PO4 in the polymer film blend. The optical absorption, absorption edge, and energy gap decrease with increasing H3PO4 concentration and radiation dose. The interaction between PVA and H3PO4 blend led to an increase in the conductivity of the resulting polymer blend film. |
first_indexed | 2024-03-06T03:16:01Z |
format | Article |
id | ums.eprints-32597 |
institution | Universiti Malaysia Sabah |
language | English English |
last_indexed | 2024-03-06T03:16:01Z |
publishDate | 2021 |
publisher | Multidisciplinary Digital Publishing Institute |
record_format | dspace |
spelling | ums.eprints-325972022-05-18T07:08:23Z https://eprints.ums.edu.my/id/eprint/32597/ Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays Susilawati Susilawati Saiful Prayogi Muhamad F. Arif Noor Maizura Ismail Muhammad Roil Bilad Muhammad Asy’ari TA1-2040 Engineering (General). Civil engineering (General) This study assesses the optical properties and conductivity of PVA–H3PO4 (polyvinyl alcohol–phosphoric acid) polymer film blend irradiated by gamma (γ) rays. The PVA–H3PO4 polymer film blend was prepared by the solvent-casting method at H3PO4 concentrations of 75 v% and 85 v%, and then irradiated up to 25 kGy using γ-rays from the Cobalt-60 isotope source. The optical absorption spectrum was measured using an ultraviolet–visible spectrophotometer over a wavelength range of 200 to 700 nm. It was found that the absorption peaks are in three regions, namely two peaks in the ultraviolet region (310 and 350 nm) and one peak in the visible region (550 nm). The presence of an absorption peak after being exposed to hυ energy indicates a transition of electrons from HOMO to LUMO within the polymer chain. The study of optical absorption shows that the energy band gap (energy gap) depends on the radiation dose and the concentration of H3PO4 in the polymer film blend. The optical absorption, absorption edge, and energy gap decrease with increasing H3PO4 concentration and radiation dose. The interaction between PVA and H3PO4 blend led to an increase in the conductivity of the resulting polymer blend film. Multidisciplinary Digital Publishing Institute 2021 Article PeerReviewed text en https://eprints.ums.edu.my/id/eprint/32597/1/Optical%20properties%20and%20conductivity%20of%20pva%E2%80%93h3%20po4%20%28Polyvinyl%20alcohol%E2%80%93phosphoric%20acid%29%20film%20blend%20irradiated%20by%20%CE%B3-rays.pdf text en https://eprints.ums.edu.my/id/eprint/32597/3/Optical%20properties%20and%20conductivity%20of%20pva%E2%80%93h3%20po4%20%28Polyvinyl%20alcohol%E2%80%93phosphoric%20acid%29%20film%20blend%20irradiated%20by%20%CE%B3-rays%20_ABSTRACT.pdf Susilawati Susilawati and Saiful Prayogi and Muhamad F. Arif and Noor Maizura Ismail and Muhammad Roil Bilad and Muhammad Asy’ari (2021) Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays. Polymers, 13 (1065). pp. 1-12. ISSN 2073-4360 https://www.mdpi.com/2073-4360/13/7/1065/htm https://doi.org/10.3390/polym13071065 https://doi.org/10.3390/polym13071065 |
spellingShingle | TA1-2040 Engineering (General). Civil engineering (General) Susilawati Susilawati Saiful Prayogi Muhamad F. Arif Noor Maizura Ismail Muhammad Roil Bilad Muhammad Asy’ari Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays |
title | Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays |
title_full | Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays |
title_fullStr | Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays |
title_full_unstemmed | Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays |
title_short | Optical properties and conductivity of pva–h3 po4 (Polyvinyl alcohol–phosphoric acid) film blend irradiated by γ-rays |
title_sort | optical properties and conductivity of pva h3 po4 polyvinyl alcohol phosphoric acid film blend irradiated by γ rays |
topic | TA1-2040 Engineering (General). Civil engineering (General) |
url | https://eprints.ums.edu.my/id/eprint/32597/1/Optical%20properties%20and%20conductivity%20of%20pva%E2%80%93h3%20po4%20%28Polyvinyl%20alcohol%E2%80%93phosphoric%20acid%29%20film%20blend%20irradiated%20by%20%CE%B3-rays.pdf https://eprints.ums.edu.my/id/eprint/32597/3/Optical%20properties%20and%20conductivity%20of%20pva%E2%80%93h3%20po4%20%28Polyvinyl%20alcohol%E2%80%93phosphoric%20acid%29%20film%20blend%20irradiated%20by%20%CE%B3-rays%20_ABSTRACT.pdf |
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