Which Polyesters Can Mimic Polyethylene?

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dc.contributor.authorStempfle, Florian
dc.contributor.authorOrtmann, Patrick
dc.contributor.authorMecking, Stefan
dc.date.accessioned2013-08-26T14:48:24Zdeu
dc.date.available2013-08-26T14:48:24Zdeu
dc.date.issued2013-01-11
dc.description.abstractSelf-metathesis of erucic acid by [(PCy3)(η-C-C3H4N2Mes2)Cl2Ru = CHPh] (Grubbs second- generation catalyst) followed by catalytic hydrogenation and purification via the ester yields 1,26-hexacosanedioate (>99% purity). Polyesterification with 1,26-hexacosanediol, generated from the diester, affords polyester-26,26, which features a Tm of 114 °C (Tc = 92 °C, ΔHm = 160 J g−1). Ultralong-chain model polyesters-38,23 (Tm = 109 °C) and −44,23 (Tm = 111 °C), generated via multistep procedures including acyclic diene metathesis polymerization, underline that melting points of such aliphatic polyesters do not gradually increase with methylene sequence chain length. Available data suggest that to mimic linear polyethylenes thermal properties, even longer sequences, amounting to at least four times a fatty acid chain, fully incorporated in a linear fashion are required.eng
dc.description.versionpublished
dc.identifier.citationMarcomolecular Rapid Communications ; 34 (2013), 1. - S. 47-50deu
dc.identifier.doi10.1002/marc.201200611deu
dc.identifier.pmid23161497
dc.identifier.urihttp://kops.uni-konstanz.de/handle/123456789/24333
dc.language.isoengdeu
dc.legacy.dateIssued2013-08-26deu
dc.rightsterms-of-usedeu
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/deu
dc.subjectfatty acidsdeu
dc.subjectplant oilsdeu
dc.subjectpolyesterdeu
dc.subjectpolyethylenedeu
dc.subjectthermal propertiesdeu
dc.subject.ddc540deu
dc.titleWhich Polyesters Can Mimic Polyethylene?eng
dc.typeJOURNAL_ARTICLEdeu
dspace.entity.typePublication
kops.citation.bibtex
@article{Stempfle2013-01-11Which-24333,
  year={2013},
  doi={10.1002/marc.201200611},
  title={Which Polyesters Can Mimic Polyethylene?},
  number={1},
  volume={34},
  issn={1022-1336},
  journal={Macromolecular Rapid Communications},
  pages={47--50},
  author={Stempfle, Florian and Ortmann, Patrick and Mecking, Stefan}
}
kops.citation.iso690STEMPFLE, Florian, Patrick ORTMANN, Stefan MECKING, 2013. Which Polyesters Can Mimic Polyethylene?. In: Macromolecular Rapid Communications. 2013, 34(1), pp. 47-50. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/marc.201200611deu
kops.citation.iso690STEMPFLE, Florian, Patrick ORTMANN, Stefan MECKING, 2013. Which Polyesters Can Mimic Polyethylene?. In: Macromolecular Rapid Communications. 2013, 34(1), pp. 47-50. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/marc.201200611eng
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    <dcterms:abstract xml:lang="eng">Self-metathesis of erucic acid by [(PCy&lt;sub&gt;3&lt;/sub&gt;)(η-C-C&lt;sub&gt;3&lt;/sub&gt;H&lt;sub&gt;4&lt;/sub&gt;N&lt;sub&gt;2&lt;/sub&gt;Mes2)Cl&lt;sub&gt;2&lt;/sub&gt;Ru = CHPh] (Grubbs second- generation catalyst) followed by catalytic hydrogenation and purification via the ester yields 1,26-hexacosanedioate (&gt;99% purity). Polyesterification with 1,26-hexacosanediol, generated from the diester, affords polyester-26,26, which features a T&lt;sub&gt;m&lt;/sub&gt; of 114 °C (T&lt;sub&gt;c&lt;/sub&gt; = 92 °C, ΔH&lt;sub&gt;m&lt;/sub&gt; = 160 J g&lt;sup&gt;−1&lt;/sup&gt;). Ultralong-chain model polyesters-38,23 (T&lt;sub&gt;m&lt;/sub&gt; = 109 °C) and −44,23 (T&lt;sub&gt;m&lt;/sub&gt; = 111 °C), generated via multistep procedures including acyclic diene metathesis polymerization, underline that melting points of such aliphatic polyesters do not gradually increase with methylene sequence chain length. Available data suggest that to mimic linear polyethylenes thermal properties, even longer sequences, amounting to at least four times a fatty acid chain, fully incorporated in a linear fashion are required.</dcterms:abstract>
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kops.sourcefieldMacromolecular Rapid Communications. 2013, <b>34</b>(1), pp. 47-50. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/marc.201200611deu
kops.sourcefield.plainMacromolecular Rapid Communications. 2013, 34(1), pp. 47-50. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/marc.201200611deu
kops.sourcefield.plainMacromolecular Rapid Communications. 2013, 34(1), pp. 47-50. ISSN 1022-1336. eISSN 1521-3927. Available under: doi: 10.1002/marc.201200611eng
kops.submitter.emailwiebke.knop@uni-konstanz.dedeu
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source.periodicalTitleMacromolecular Rapid Communications

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