The logarithmic relaxation process and the critical temperature of liquids in nano-confined states

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dc.contributor.authorChathoth, SMen_AU
dc.contributor.authorChen, Cen_AU
dc.contributor.authorYu, DHen_AU
dc.date.accessioned2021-08-11T22:09:17Zen_AU
dc.date.available2021-08-11T22:09:17Zen_AU
dc.date.issued2017-07-12en_AU
dc.date.statistics2021-08-08en_AU
dc.description.abstractThe logarithmic relaxation process is the slowest of all relaxation processes and is exhibited by only a few molecular liquids and proteins. Bulk salol, which is a glass-forming liquid, is known to exhibit logarithmic decay of intermediate scattering function for the ?-relaxation process. Here, we report the influence of nanoscale confinements on the logarithmic relaxation process and changes in the microscopic glass-transition temperature of salol in the carbon and silica nanopores. The generalized vibrational density-of-states of the confined salol indicates that the interaction of salol with ordered nanoporous carbon is hydrophilic in nature whereas the interaction with silica surfaces is more hydrophobic. The mode-coupling theory critical temperature derived from the QENS data shows that the dynamic transition occurs at much lower temperature in the carbon pores than in silica pores. The results of this study indicate that, under nano-confinements, liquids that display logarithmic ?-relaxation phenomenon undergo a unique glass transition process.en_AU
dc.identifier.citationChathoth, S. M., Chen, C., & Yu, D. H. (2017). The logarithmic relaxation process and the critical temperature of liquids in nano-confined states. Paper presented at ICNS 2017 (International Conference on Neutron Scattering), Daejeon, South Korea, 9 to 13 July 2017. Retrieved from: http://www.icns2017.org/program.phpen_AU
dc.identifier.conferenceenddate13 July 2017en_AU
dc.identifier.conferencenameICNS 2017 (International Conference on Neutron Scattering)en_AU
dc.identifier.conferenceplaceDaejeon, South Koreaen_AU
dc.identifier.conferencestartdate9 July 2017en_AU
dc.identifier.urihttp://www.icns2017.org/program.phpen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/11333en_AU
dc.language.isoenen_AU
dc.publisherInternational Conference on Neutron Scatteringen_AU
dc.subjectRelaxationen_AU
dc.subjectTransition temperatureen_AU
dc.subjectGlassen_AU
dc.subjectDecompositionen_AU
dc.subjectCarbonen_AU
dc.subjectSilicaen_AU
dc.titleThe logarithmic relaxation process and the critical temperature of liquids in nano-confined statesen_AU
dc.typeConference Abstracten_AU
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