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Spectroscopic investigation of PVA-TIO2 membranes gamma irradiated

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Todica, M. , Udrescu, L., Damian, G., Astilean, S

Editorial: Elsevier, Journal of Molecular Structure, 10.1016/j.molstruc.2012.12.006, p.328-330, 2013.

Rezumat:

The modifications of the PVA-TiO2 membranes exposed to gamma radiations were investigated by ESR and XRD methods. The ESR spectra show the appearance of a strong signal associated with the breaking of the polymeric chain and the appearance of the unpaired electrons. The mechanism is influenced by the concentration of TiO2. The modification of local order of the polymeric chains after irradiation is confirmed by XRD method

Cuvinte cheie: ESR; Gamma irradiation; Polyvinyl alcohol; TiO2

URL: http://www.sciencedirect.com/science/journal/00222860/1044