Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films.

ABSTRACT: A series of coatings from poly(ethylene-co-vinyl acetate) (EVA) were obtained using the matrix-assisted pulsed laser evaporation (MAPLE) technique. By changing the process parameters, i.e., laser fluence and EVA co-polymer concentration in the target, coatings with various morphologies and topographies were produced. The evaluation of the film structure was based on an analysis of optical and atomic force microscopy and profilometry measurements. A detailed chemical structure investigation, conducted based on Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) spectra, revealed that although the general structure was preserved, some alterations of ethylene (Et) and vinyl acetate (VAc) blocks took place. The most noticeable change was in the ester group that was tra

SUBMITTER: Niemczyk A 

PROVIDER: S-EPMC8583955 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature