Calorimetric glass transition of ultrathin poly(bisphenol A carbonate) films
- Specific heat spectroscopy in the frequency range from 1 Hz to 10³ Hz with a sensitivity of pJ K-1 was employed to study the glass transition behavior of ultrathin poly(bisphenol A carbonate) (PBAC) films with thicknesses ranging from 192 nm down to 10 nm. The amplitude and the phase angle of the complex differential voltage as a measure of the complex heat capacity were obtained as a function of temperature at a given frequency simultaneously. Both spectra are used to determine the dynamic glass transition temperature as a function of both the frequency and the film thickness. As the main result no thickness dependence of the dynamic glass transition temperature was observed down to a film thickness of 10 nm within the experimental uncertainty of ±3 K. The obtained data were compared with literature results in detail.
Autor*innen: | Huajie YinORCiD, Andreas SchönhalsORCiD |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Soft matter |
Jahr der Erstveröffentlichung: | 2012 |
Herausgeber (Institution): | The Royal Society of Chemistry |
Verlag: | RSC Publ. |
Verlagsort: | Cambridge |
Jahrgang/Band: | 8 |
Ausgabe/Heft: | 35 |
Erste Seite: | 9132 |
Letzte Seite: | 9139 |
DOI: | 10.1039/c2sm26174j |
ISSN: | 1744-683X |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 29.08.2012 |