MeV energy electron beam induced damage in isotactic polypropylene

6MeV pulsed electron beam induced surface and structural changes in polyimide

“…In such case the density of radiation induced spurs (zones enriched with highly reactive free radicals) may be high enough to allow the overlapping of spurs. As a result the free radicals may crosslink with each other [13]. Further, the dominance of scissioning or crosslinking depends upon the dose rate and the extent of radiation induced oxidation.…”

Surface modification and metallization of polycarbonate using low energy ion beam

“…The gradual shift in the absorption edge as a result of ion irradiated may be attributed to the bond breaking. which lead to release of the volatile species from the material, chain scission, free radical formation, cross-linking, defects and formation of new bonds (Singh and Prasher, 2006;Phukan et al, 2003;Mathakari et al, 2008;Abdul-Kader, 2014).…”

A comparative study on the effects of Co-60 gamma radiation on polypropylene and polyimide

“…This reveals that the gamma irradiation does not affect all the regions of polymer to the same extent. This is because in polymers, the amorphous zones and the tie molecules, which join crystallites, are more sensitive to radiation, while the crystalline zones are relatively less affected (17,47). In such case, the scissioning of polymer chains in amorphous zones and scissioning of tie molecules joining crystalline zones may facilitate the reorganization of crystalline and amorphous zones to some extent.…”