Correlation between the Crystallite Modulus along Chain Axis and the Durability of Crystallinity against Electron Irradiation for Polymers

Abstract

For 20 spieces of polymer crystals, a correlation between the crystallite modulus along the chain axis and the durability of crystallinity against electron irradiation was examined. As for the modulus (Ec), the observed and/or theoretically calculated values were cited from literature. As a measure of the durability, the total end-point dose (TEPD) for each polymer crystal, namely the electron irradiation dose necessary for complete disappearance of crystalline reflections in the selected-area electron diffraction pattern, was estimated experimentally for 200kV electrons or cited from literature. It was suggested that there exists a weak, but some correlation in a plot of Ec against the logarism of TEPD, although the number of data points was not enough.