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

A series of coatings from poly(ethylene-<i>co</i>-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 morphol...

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Autores principales:	Agata Niemczyk, Simona Brajnicov, Veronica Satulu, Jolanta Baranowska, Bogdana Mitu, Maria Dinescu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	poly(ethylene-<i>co</i>-vinyl acetate) MAPLE chemical structure Biology (General) QH301-705.5 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/d433977886064866aac6ad9ac47406ca
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spelling	oai:doaj.org-article:d433977886064866aac6ad9ac47406ca2021-11-11T17:09:00ZTowards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films10.3390/ijms2221116861422-00671661-6596https://doaj.org/article/d433977886064866aac6ad9ac47406ca2021-10-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/21/11686https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067A series of coatings from poly(ethylene-<i>co</i>-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 transformed into ketone and carboxyl groups; nevertheless, some changes in the aliphatic main chain were also present. The chemical structure changes in EVA coatings took place regardless of the process parameters used. The use of chloroform as a solvent to dissolve the EVA copolymer was indicated as a possible reason of the changes as well as the tendency of EVA macromolecules to form clusters. Nevertheless, due to low level of structure alteration, it has been shown that the MAPLE technique can be successfully used to obtain coatings from polymers with more complex structures, which are soluble in a limited number of solvents.Agata NiemczykSimona BrajnicovVeronica SatuluJolanta BaranowskaBogdana MituMaria DinescuMDPI AGarticlepoly(ethylene-<i>co</i>-vinyl acetate)MAPLEchemical structureBiology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 11686, p 11686 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	poly(ethylene-<i>co</i>-vinyl acetate) MAPLE chemical structure Biology (General) QH301-705.5 Chemistry QD1-999
spellingShingle	poly(ethylene-<i>co</i>-vinyl acetate) MAPLE chemical structure Biology (General) QH301-705.5 Chemistry QD1-999 Agata Niemczyk Simona Brajnicov Veronica Satulu Jolanta Baranowska Bogdana Mitu Maria Dinescu Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films
description	A series of coatings from poly(ethylene-<i>co</i>-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 transformed into ketone and carboxyl groups; nevertheless, some changes in the aliphatic main chain were also present. The chemical structure changes in EVA coatings took place regardless of the process parameters used. The use of chloroform as a solvent to dissolve the EVA copolymer was indicated as a possible reason of the changes as well as the tendency of EVA macromolecules to form clusters. Nevertheless, due to low level of structure alteration, it has been shown that the MAPLE technique can be successfully used to obtain coatings from polymers with more complex structures, which are soluble in a limited number of solvents.
format	article
author	Agata Niemczyk Simona Brajnicov Veronica Satulu Jolanta Baranowska Bogdana Mitu Maria Dinescu
author_facet	Agata Niemczyk Simona Brajnicov Veronica Satulu Jolanta Baranowska Bogdana Mitu Maria Dinescu
author_sort	Agata Niemczyk
title	Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films
title_short	Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films
title_full	Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films
title_fullStr	Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films
title_full_unstemmed	Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films
title_sort	towards understanding the chemical structure modification of eva copolymer upon maple processing of thin films
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d433977886064866aac6ad9ac47406ca
work_keys_str_mv	AT agataniemczyk towardsunderstandingthechemicalstructuremodificationofevacopolymeruponmapleprocessingofthinfilms AT simonabrajnicov towardsunderstandingthechemicalstructuremodificationofevacopolymeruponmapleprocessingofthinfilms AT veronicasatulu towardsunderstandingthechemicalstructuremodificationofevacopolymeruponmapleprocessingofthinfilms AT jolantabaranowska towardsunderstandingthechemicalstructuremodificationofevacopolymeruponmapleprocessingofthinfilms AT bogdanamitu towardsunderstandingthechemicalstructuremodificationofevacopolymeruponmapleprocessingofthinfilms AT mariadinescu towardsunderstandingthechemicalstructuremodificationofevacopolymeruponmapleprocessingofthinfilms
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Towards Understanding the Chemical Structure Modification of EVA Copolymer upon MAPLE Processing of Thin Films

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