Film conformation and dynamic properties of atomistically architectured perfluoropolyethers on the carbon overcoated surface

Abstract

This study investigates the molecular conformations and dynamic responses of star-like PFPEs including TA-30 and QA-40. The coarse-grained molecular level description is used based on the force field estimation from the atomistic level model. The dynamic responses are determined by calculating the self-diffusion coefficient. It is found that star-like polymer structure and additional functional groups cause entanglement decreasing mobility drastically while increasing the film stability on the carbon overcoat.