In-situ investigation of vapor-deposited glasses of toluene and ethylbenzene via alternating current chip-nanocalorimetry

Mathias Ahrenberg

doi:10.18453/rosdok_id00001210

Mathias Ahrenberg

In-situ investigation of vapor-deposited glasses of toluene and ethylbenzene via alternating current chip-nanocalorimetry

Universität Rostock, 2013

https://doi.org/10.18453/rosdok_id00001210

Abstract: Vapor-deposited glasses of toluene and ethylbenzene have been characterized by in-situ AC chip-nanocalorimetry. We observed that vapor-deposited glasses have up to 4% lower heat capacities than the ordinary glass. The largest heat capacity decrease and the most kinetically stable glasses of toluene and ethylbenzene are observed in a range of deposition temperatures between 0.75 Tg and 0.96 Tg. In addition, AC nanocalorimetry was used to follow the isothermal transformation of the stable glasses into the supercooled liquid at temperatures slightly above Tg.

Dissertation Freier Zugang

Titel:

In-situ investigation of vapor-deposited glasses of toluene and ethylbenzene via alternating current chip-nanocalorimetry

Beteiligte Personen:

Mathias Ahrenberg[VerfasserIn]
	1037675916
Christoph Schick , Prof.[AkademischeR BetreuerIn]
	132905272
	Universität Rostock, Institut für Physik
Mark D. Ediger , Prof.[AkademischeR BetreuerIn]
	University of Wisconsin, Department of Chemistry
Mario Beiner , Prof.[AkademischeR BetreuerIn]
	Universität Halle, Institut für Chemie

Beteiligte Körperschaften:

Universität Rostock, Mathematisch-Naturwissenschaftliche Fakultät[Grad-verleihende Institution]
	2147083-2

Zusammenfassung:

Vapor-deposited glasses of toluene and ethylbenzene have been characterized by in-situ AC chip-nanocalorimetry. We observed that vapor-deposited glasses have up to 4% lower heat capacities than the ordinary glass. The largest heat capacity decrease and the most kinetically stable glasses of toluene and ethylbenzene are observed in a range of deposition temperatures between 0.75 Tg and 0.96 Tg. In addition, AC nanocalorimetry was used to follow the isothermal transformation of the stable glasses into the supercooled liquid at temperatures slightly above Tg. [Englisch]

Dokumenttyp:

Dissertation

Einrichtung:

Mathematisch-Naturwissenschaftliche Fakultät

Sprache:

Englisch

Sachgruppe der DNB:

530 Physik

Veröffentlichung /
Entstehung:

Rostock

Rostock: Universität Rostock

2013