Radiation induced modification of dielectric and structural properties of Cu/PMMA polymer composites

The physical and chemical properties of gamma ray irradiated polymer electrolyte films

“…The decrease in the area under the melting point peak with dose suggests that the decrease in the amount of crystallinity in sample i.e. amount of PEO in the sample and also results reveal that the tag shifted towards lower temperature with an increase of irradiation dose; it means that sample tends to change towards disordered state (amorphous) due to chain scission and subsequently reduced in molecular weight [37]. This is clearly noticed the increase in the amorphicity in the irradiated polymer film, which is attributed due to the formation defects or disorder in the chemistry of the polymer system, thus it confirms the degradation/ modification in irradiated films.…”

Ion beam induced surface and interface engineering

“…due to emission of hydrogen and/or other volatile gases, which makes the polymer more conductive. The crystallinity improved upon irradiation at low fluence and deteriorated on further increase of fluence, attributed to crosslinking of polymer chains at low fluence and degradation at higher fluence [604]. Kaschny modification of gold thin films deposited over polymer films.…”

Electrical and Surface Morphology of Polyvinylchloride Composites Filled with Aluminum Powder

“…As shown in figure, 0 % and 10% samples behave as a insulating phase and after further doping at higher concentration, samples show conducting behavior [4]. The first trend is contributed by free charges available in the composite system whereas the second, which is frequency dependent conductivity, is due to trapped charges which are only active at higher frequency region.…”