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Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications

Poly(2-nonyl-2-oxazoline)(80)-stat-poly(2-dec-9′-enyl-2-oxazoline)(20) and poly(2-dec-9′-enyl-2-oxazoline)(100) can be synthesized from the cationic ring-opening polymerization of monomers that can be derived from fatty acids from renewable resources. These (co)poly(2-oxazoline)s can be crosslinked...

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Autores principales: Fimberger, Martin, Tsekmes, Ioannis-Alexandros, Kochetov, Roman, Smit, Johan J., Wiesbrock, Frank
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432510/
https://www.ncbi.nlm.nih.gov/pubmed/30979103
http://dx.doi.org/10.3390/polym8010006
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author Fimberger, Martin
Tsekmes, Ioannis-Alexandros
Kochetov, Roman
Smit, Johan J.
Wiesbrock, Frank
author_facet Fimberger, Martin
Tsekmes, Ioannis-Alexandros
Kochetov, Roman
Smit, Johan J.
Wiesbrock, Frank
author_sort Fimberger, Martin
collection PubMed
description Poly(2-nonyl-2-oxazoline)(80)-stat-poly(2-dec-9′-enyl-2-oxazoline)(20) and poly(2-dec-9′-enyl-2-oxazoline)(100) can be synthesized from the cationic ring-opening polymerization of monomers that can be derived from fatty acids from renewable resources. These (co)poly(2-oxazoline)s can be crosslinked with di- and trifunctional mercapto compounds using the UV-induced thiol-ene reaction. The complex permittivity of the corresponding networks increases with the temperature and decreases with the network density. In a frequency range from 10(−2) to 10(6) Hz and at temperatures ranging from −20 to 40 °C, the changes of the real part of the complex permittivity as well as the loss factor can be explained by interfacial polarization within the material. At a temperature of 20 °C and a frequency of 50 Hz, the permittivity of the crosslinked (co)poly(2-oxazoline)s covers a range from 4.29 to 4.97, and the loss factors are in the range from 0.030 to 0.093. The electrical conductivities of these polymer networks span a range from 5 × 10(−12) to 8 × 10(−9) S/m, classifying these materials as medium insulators. Notably, the values for the permittivity, loss factor and conductivity of these copoly(2-oxazoline)s are in the same range as for polyamides, and, hence, these copoly(2-oxazoline)-based networks may be referred to as “green” alternatives for polyamides as insulators in electronic applications.
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spelling pubmed-64325102019-04-02 Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications Fimberger, Martin Tsekmes, Ioannis-Alexandros Kochetov, Roman Smit, Johan J. Wiesbrock, Frank Polymers (Basel) Article Poly(2-nonyl-2-oxazoline)(80)-stat-poly(2-dec-9′-enyl-2-oxazoline)(20) and poly(2-dec-9′-enyl-2-oxazoline)(100) can be synthesized from the cationic ring-opening polymerization of monomers that can be derived from fatty acids from renewable resources. These (co)poly(2-oxazoline)s can be crosslinked with di- and trifunctional mercapto compounds using the UV-induced thiol-ene reaction. The complex permittivity of the corresponding networks increases with the temperature and decreases with the network density. In a frequency range from 10(−2) to 10(6) Hz and at temperatures ranging from −20 to 40 °C, the changes of the real part of the complex permittivity as well as the loss factor can be explained by interfacial polarization within the material. At a temperature of 20 °C and a frequency of 50 Hz, the permittivity of the crosslinked (co)poly(2-oxazoline)s covers a range from 4.29 to 4.97, and the loss factors are in the range from 0.030 to 0.093. The electrical conductivities of these polymer networks span a range from 5 × 10(−12) to 8 × 10(−9) S/m, classifying these materials as medium insulators. Notably, the values for the permittivity, loss factor and conductivity of these copoly(2-oxazoline)s are in the same range as for polyamides, and, hence, these copoly(2-oxazoline)-based networks may be referred to as “green” alternatives for polyamides as insulators in electronic applications. MDPI 2015-12-30 /pmc/articles/PMC6432510/ /pubmed/30979103 http://dx.doi.org/10.3390/polym8010006 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Fimberger, Martin
Tsekmes, Ioannis-Alexandros
Kochetov, Roman
Smit, Johan J.
Wiesbrock, Frank
Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications
title Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications
title_full Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications
title_fullStr Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications
title_full_unstemmed Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications
title_short Crosslinked Poly(2-oxazoline)s as “Green” Materials for Electronic Applications
title_sort crosslinked poly(2-oxazoline)s as “green” materials for electronic applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432510/
https://www.ncbi.nlm.nih.gov/pubmed/30979103
http://dx.doi.org/10.3390/polym8010006
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