Radiation Effects and Crystallinity in Polyethylene and Paraffins

摘要: A survey is presented of a series studies on the influence crystallinity radiation-induced effects, cross-linking in particular, polyethylene and paraffins. The principal theme that usual conception random introduction cross-links into assembly chains needs to be modified presence general chain folding particular. long varied investigations have indeed demonstrated through conspicuous effects not only ordering intrinsic crystals increased intrachain contacts due folding, but higher level morphology, nature mutual arrangement lamellae major effectivity radiation leading networks. Extension paraffins identified unsuspected mobility both precursor species paraffin molecule itself (cross-linked uncross-linked) within crystal lattice, phase segregation cross-linked microscopically identifiable domains together with identifying trend for themselves form non-randomly groups. latter phenomenon, observed also molten state, indicates departure from randomness process much more deep-rooted than originally anticipated, calls reassessment our knowledge cross-linking.