Cargando…

Structural Investigation of Poly(ethylene furanoate) Polymorphs

α and β crystalline phases of poly(ethylene furanoate) (PEF) were determined using X-ray powder diffraction by structure resolution in direct space and Rietveld refinement. Moreover, the α’ structure of a PEF sample was refined from data previously reported for PEF fiber. Triclinic α-PEF a = 5.729 Å...

Descripción completa

Detalles Bibliográficos
Autores principales: Maini, Lucia, Gigli, Matteo, Gazzano, Massimo, Lotti, Nadia, Bikiaris, Dimitrios N., Papageorgiou, George Z.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415112/
https://www.ncbi.nlm.nih.gov/pubmed/30966331
http://dx.doi.org/10.3390/polym10030296
_version_ 1783403115715756032
author Maini, Lucia
Gigli, Matteo
Gazzano, Massimo
Lotti, Nadia
Bikiaris, Dimitrios N.
Papageorgiou, George Z.
author_facet Maini, Lucia
Gigli, Matteo
Gazzano, Massimo
Lotti, Nadia
Bikiaris, Dimitrios N.
Papageorgiou, George Z.
author_sort Maini, Lucia
collection PubMed
description α and β crystalline phases of poly(ethylene furanoate) (PEF) were determined using X-ray powder diffraction by structure resolution in direct space and Rietveld refinement. Moreover, the α’ structure of a PEF sample was refined from data previously reported for PEF fiber. Triclinic α-PEF a = 5.729 Å, b = 7.89 Å, c = 9.62 Å, α = 98.1°, β = 65.1°, γ = 101.3°; monoclinic α’-PEF a = 5.912 Å, b = 6.91 Å, c = 19.73 Å, α = 90°, β = 90°, γ = 104.41°; and monoclinic β-PEF a = 5.953 Å, b = 6.60 Å, c = 10.52 Å, α = 90°, β = 107.0°, γ = 90° were determined as the best fitting of X-ray diffraction (XRD) powder patterns. Final atomic coordinates are reported for all polymorphs. In all cases PEF chains adopted an almost planar configuration.
format Online
Article
Text
id pubmed-6415112
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-64151122019-04-02 Structural Investigation of Poly(ethylene furanoate) Polymorphs Maini, Lucia Gigli, Matteo Gazzano, Massimo Lotti, Nadia Bikiaris, Dimitrios N. Papageorgiou, George Z. Polymers (Basel) Article α and β crystalline phases of poly(ethylene furanoate) (PEF) were determined using X-ray powder diffraction by structure resolution in direct space and Rietveld refinement. Moreover, the α’ structure of a PEF sample was refined from data previously reported for PEF fiber. Triclinic α-PEF a = 5.729 Å, b = 7.89 Å, c = 9.62 Å, α = 98.1°, β = 65.1°, γ = 101.3°; monoclinic α’-PEF a = 5.912 Å, b = 6.91 Å, c = 19.73 Å, α = 90°, β = 90°, γ = 104.41°; and monoclinic β-PEF a = 5.953 Å, b = 6.60 Å, c = 10.52 Å, α = 90°, β = 107.0°, γ = 90° were determined as the best fitting of X-ray diffraction (XRD) powder patterns. Final atomic coordinates are reported for all polymorphs. In all cases PEF chains adopted an almost planar configuration. MDPI 2018-03-09 /pmc/articles/PMC6415112/ /pubmed/30966331 http://dx.doi.org/10.3390/polym10030296 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Maini, Lucia
Gigli, Matteo
Gazzano, Massimo
Lotti, Nadia
Bikiaris, Dimitrios N.
Papageorgiou, George Z.
Structural Investigation of Poly(ethylene furanoate) Polymorphs
title Structural Investigation of Poly(ethylene furanoate) Polymorphs
title_full Structural Investigation of Poly(ethylene furanoate) Polymorphs
title_fullStr Structural Investigation of Poly(ethylene furanoate) Polymorphs
title_full_unstemmed Structural Investigation of Poly(ethylene furanoate) Polymorphs
title_short Structural Investigation of Poly(ethylene furanoate) Polymorphs
title_sort structural investigation of poly(ethylene furanoate) polymorphs
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6415112/
https://www.ncbi.nlm.nih.gov/pubmed/30966331
http://dx.doi.org/10.3390/polym10030296
work_keys_str_mv AT mainilucia structuralinvestigationofpolyethylenefuranoatepolymorphs
AT giglimatteo structuralinvestigationofpolyethylenefuranoatepolymorphs
AT gazzanomassimo structuralinvestigationofpolyethylenefuranoatepolymorphs
AT lottinadia structuralinvestigationofpolyethylenefuranoatepolymorphs
AT bikiarisdimitriosn structuralinvestigationofpolyethylenefuranoatepolymorphs
AT papageorgiougeorgez structuralinvestigationofpolyethylenefuranoatepolymorphs