Real-Time Observation of Polymer Fluctuations During Phase Transition Using Transmission Electron Microscope.

ABSTRACT: Measuring molecular dynamics improves understanding of the structure-function relationships of materials. In this study, we present a novel technique for observing material dynamics using transmission electron microscopy (TEM), in which the gold nanoparticles are employed as motion probes for tracing the polymer dynamics in real space. A thin layer of polymer materials was generated on the 2 μm diameter holes of Quantifoil grids, and gold nanoparticles were dispersed on the membrane surface. By tracking the movement of gold nanoparticles from a series of TEM images taken under continuous temperature control, we obtained mean squared displacement (MSD) curves. The dynamics of poly{2-(perfluorooctyl)ethyl acrylate} (PC₈FA) and poly(stearyl acrylate) (PSA) were analyzed. In the tem

SUBMITTER: Shiina T 

PROVIDER: S-EPMC11820666 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature