The effects of PEG assisted synthesis and zinc addition on gamma irradiated bioactive glasses |
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| Affiliation: | 1. Plastics and Composites Department, Gaiker IK4 Research Centre, Parque Tecnológico de Vizcaya, Ed. 202, 48170 Zamudio, Spain;2. Mechanical and Industrial Production Department, Mondragón Unibertsitatea, Loramendi 4, 20500 Mondragón, Spain;1. Mathematical Institute of the SASA, Kneza Mihaila 36, 11001 Belgrade, Serbia;2. College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, UK;3. School of Engineering, University of the West of Scotland, Paisley PA12BE, UK;1. Department of Physics, Blagoveschensk State Pedagogical University, 104 Lenina, Blagoveschensk 675000, Russia;2. Department of Physics, Amur State University, 21 Ignatievskoe Shosse, Blagoveschensk 675027, Russia;3. Ioffe Physical Technical Institute, 26 Politekhnicheskaya, St. Petersburg 194021, Russia |
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| Abstract: | Zinc containing bioactive glasses were prepared by means of sol–gel procedure, in the presence of polyethylene glycol (PEG) considered as surfactant agent. Fourier transform infrared spectroscopy (FTIR), UV–Vis absorption spectroscopy and electron paramagnetic resonance spectroscopy (EPR) were employed to reveal the bioactive glass response to gamma irradiation in terms of defects generation. The results proved that gamma irradiation induces structural changes within the glass matrix, which are strongly dependent on the sample composition. ZnO addition to the glasses network was found to confer structural stability against gamma irradiation, while the use of PEG during the samples preparation favoured the generation of network defects especially in ZnO containing samples. |
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| Keywords: | A Glasses A Polymer–matrix composites (PMCs) B Defects D Chemical analysis |
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