Glass transition in vapor deposited thin films of toluene

E. León-Gutierrez, G. Garcia, M. T. Clavaguera-Mora, J. Rodríguez-Viejo

Research output: Contribution to journalArticleResearchpeer-review

58 Citations (Scopus)

Abstract

We report on nanocalorimetric measurements of 50 nm thick toluene films at heating rates spanning 600 to 8 × 104 K/s. The films are grown from the vapour at 90 K directly onto the nanocalorimetric cell. The kinetic and thermodynamic stability of as-deposited films is higher than the stability of films cooled from the supercooled liquid at 2000 K/s. We also show that at those heating rates, the calorimetric Tg does not correlate with the relaxation time obtained by dielectric spectroscopy. © 2009 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)51-54
JournalThermochimica Acta
Volume492
DOIs
Publication statusPublished - 10 Aug 2009

Keywords

  • Glass transition
  • Nanocalorimetry
  • Relaxation time
  • Thin films
  • Toluene

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