NMR determination of damaged layer thickness in the γ-irradiated polyethylene

Abstract

The thickness of the degraded surface layer in γ-irradiated low density polyethylene (LDPE) and the total dose have been determined. This was done either by NMR measurements or by measuring self-diffusion coefficients of the macromolecules (by a pulsed NMR method) in the surface layer and in the LDPE sample as a whole. © 1987