Mitigating Radiation Damage to Polyethylene in Transmission Electron Microscopy by Free Radical Scavengers.

ABSTRACT: Polyethylene (PE) is the most extensively used semicrystalline polymer due to its wide array of applications. The properties of PE are influenced by its nanosized crystals and amorphous regions. Transmission electron microscopy (TEM) is a vital tool for revealing the nanostructures within materials. However, high-energy incident electrons can inflict radiolysis damage through electron irradiation, resulting in the loss of crucial information regarding crystallization. In this study, we examine the effect of free radical scavengers on PE as an approach to mitigating beam damage. Quantifying the beam damage by critical dose (D _c) values from the decay of electron diffraction (ED) peaks shows that the beam damage of PE in TEM can be mitigated by casting an aqueous solution c

SUBMITTER: Wang HF 

PROVIDER: S-EPMC12771416 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature