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Investigation of the Effect of Gamma-Radiation on High-Density Polyethylene by Solid-State Magic-Angle 13C NMR Spectroscopy

Volume 41, Number 8 (Dec. 1987) Page 1418-1421

Cholli, Ashok L.; Ritchey, William M.; Koenig, Jack L.


The structural and morphological changes occurring in high-density polyethylene when exposed to gamma-radiation have been investigated by high-resolution solid state 13C NMR, NMR measurements are used to study the effect of gamma-radiation on crystalline and amorphous components. In addition, resonance peaks due to direct cross-links have been detected. The changes in main chain unsaturation are also studied.