Universality of time–temperature scaling observed by neutron spectroscopy on bottlebrush polymers

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dc.contributor.authorBichler, KJen_AU
dc.contributor.authorJakobi, Ben_AU
dc.contributor.authorSakai, VGen_AU
dc.contributor.authorKlapproth, Aen_AU
dc.contributor.authorMole, RAen_AU
dc.contributor.authorSchneider, GJen_AU
dc.date.accessioned2025-03-21T04:08:21Zen_AU
dc.date.available2025-03-21T04:08:21Zen_AU
dc.date.issued2021-05-14en_AU
dc.date.statistics2024-10-02en_AU
dc.description.abstractThe understanding of materials requires access to the dynamics over many orders of magnitude in time; however, single analytical techniques are restricted in their respective time ranges. Assuming a functional relationship between time and temperature is one viable tool to overcome these limits. Despite its frequent usage, a breakdown of this assertion at the glass-transition temperature is common. Here, we take advantage of time- and length-scale information in neutron spectroscopy to show that the separation of different processes is the minimum requirement toward a more universal picture at, and even below, the glass transition for our systems. This is illustrated by constructing the full proton mean-square displacement for three bottlebrush polymers from femto- to nanoseconds, with simultaneous information on the partial contributions from segmental relaxation, methyl group rotation, and vibrations. The information can be used for a better analysis of results from numerous techniques and samples, improving the overall understanding of materials properties. © 2021 The Authors. Published by American Chemical Society. Open Access CC-BY-4.0.en_AU
dc.description.sponsorshipWe gratefully acknowledge funding by the U.S. Department of Energy (DoE) under grant DE-SC0019050. We also would like to acknowledge ACNS (P7387 and P7389), Sydney, Australia, and the ISIS Neutron and Muon Facility (DOI: 10.5286/ISIS.E.RB1910220), Didcot, United Kingdom, for access to the quasi-elastic neutron scattering instruments. We thank Prof. David Spivak (Department of Chemistry, Louisiana State University) for carefully proofreading the manuscript.en_AU
dc.format.mediumPrint-Electronicen_AU
dc.identifier.citationBichler, K. J., Jakobi, B., Sakai, V. G., Klapproth, A., Mole, R. A., & Schneider, G. J. (2021). Universality of time–temperature scaling observed by neutron spectroscopy on bottlebrush polymers. Nano Letters, 21(10), 4494-4499. doi:1021/acs.nanolett.1c01379en_AU
dc.identifier.issn1530-6984en_AU
dc.identifier.issn1530-6992en_AU
dc.identifier.issue10en_AU
dc.identifier.journaltitleNano Lettersen_AU
dc.identifier.pagination4494-4499en_AU
dc.identifier.urihttps://doi.org/10.1021/acs.nanolett.1c01379en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/16087en_AU
dc.identifier.volume21en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectNeutronsen_AU
dc.subjectSpectroscopyen_AU
dc.subjectPolymersen_AU
dc.subjectTemperature rangeen_AU
dc.subjectMaterialsen_AU
dc.subjectGlassen_AU
dc.subjectProtonsen_AU
dc.subjectOscillationsen_AU
dc.subjectMolecular dynamics methoden_AU
dc.subjectQuasi-elastic scatteringen_AU
dc.titleUniversality of time–temperature scaling observed by neutron spectroscopy on bottlebrush polymersen_AU
dc.typeJournal Articleen_AU
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