Radiation induced grafting of acrylic acid onto extruded polystyrene surface |
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| Authors: | Viorel Fugaru George Bubueanu Catalin Tuta |
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| Institution: | 1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;2. Graduate School of the Chinese Academy of Sciences, Beijing 100049, China;1. Faculty of Social Sciences, Department of Health Policy & Health Economics, Institute of Economics, Eötvös Loránd University;2. Syreon Research Institute;3. Faculty of Social Sciences, Department of Statistics, Eötvös Loránd University;4. 3rd Department of Internal Medicine, Bajcsy-Zsilinszky Hospital;5. 2nd Department of Internal Medicine – Diabetology, Saint John Hospital, Budapest, Hungary;6. Faculty of Health Care, Institute of Theoretical Health Sciences, University of Miskolc, Miskolc, Hungary;7. Department of Metabolic Disorders, Endocrinology and Diabetology, Petz Aladár County Teaching Hospital, Gy?r, Hungary;8. Novartis Ltd., Budapest, Hungary;1. West University of Timisoara, 4 Bd.V. Parvan Timisoara, Romania;2. H. Hulubei Instit.for R&D in Physics and Nuclear Engin., 30 Reactorului, Magurele, Romania;1. Energy Research Institute at NTU, Interdisciplinary Graduate School, Nanyang Technological University, Singapore 639798, Singapore;2. EXQUISITUS, Centre for E-City, School of Electrical & Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore;3. Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong |
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| Abstract: | Polystyrene materials with good solubility in liquid scintillation cocktails are used to wipe off different types of surfaces in order to determine the tritium removable contamination with the help of a liquid scintillation counter. This paper analyses hydrophilic surface modifications by radiation induced grafting of acrylic groups onto extruded polystyrene plates. Two grafting methods were used: (a) exposure of extruded polystyrene plates, immersed in aqueous acrylic acid solution, to a gamma radiation of a Co-60 source, and (b) exposure of extruded polystyrene plates to a Co-60 source, followed by the immersion of extruded polystyrene plates in aqueous acrylic acid solution. The grafting of acrylic was proved by IR spectrometry and by radiometric methods using acrylic acid labelled with tritium. |
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