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The stiffness of a fully stretched polyethylene chain: A Raman jet spectroscopy extrapolation

dc.contributor.authorWassermann, Tobias N.
dc.contributor.authorThelemann, Jonas
dc.contributor.authorZielke, Philipp
dc.contributor.authorSuhm, Martin A.
dc.date.accessioned2011-02-16T08:27:48Z
dc.date.available2011-02-16T08:27:48Z
dc.date.issued2009
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/5888
dc.description.abstractLinear alkanes with n=5–16 C-atoms are partially relaxed into their stretched all-trans conformation by supersonic jet expansion. Their longitudinal acoustic modes are identified by spontaneous Raman scattering and deperturbed from transverse bending mode components and Fermi resonance with combination states of the same symmetry. Comparison with quantum chemical predictions of the longitudinal modes in hydrocarbon chains with up to 54 C-atoms allows for a reliable extrapolation to the limiting product n· ˜n=2310 30 cm−1 for large n, from which the elastic modulus of an ideal polyethylene chain in vacuum may be estimated at 309 8 GPa. Differences to solid state determinations of this quantity are discussed.
dc.language.isoeng
dc.rightsopenAccess
dc.rights.urihttp://goedoc.uni-goettingen.de/goescholar/License_Goedoc_2009_03.txt
dc.subjectPolyethylene
dc.subject.ddc540
dc.titleThe stiffness of a fully stretched polyethylene chain: A Raman jet spectroscopy extrapolation
dc.typejournalArticle
dc.identifier.doi10.1063/1.3256221
dc.type.versionpublishedVersion
dc.bibliographicCitation.volume131
dc.type.subtypejournalArticle
dc.bibliographicCitation.articlenumber161108
dc.description.statuspeerReviewed
dc.bibliographicCitation.journalTHE JOURNAL OF CHEMICAL PHYSICS


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