Effect of long range interactions on the glass transition temperature of thin polystyrene films

Cui Zhang, Yoshihisa Fujii, Keiji Tanaka

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

The glass transition temperature (Tg) of thin polystyrene (PS) films supported on silicon wafers with oxide layers of varying thickness was characterized by the temperature dependence of the film thickness using ellipsometry. This allowed us to uncover how a long-range interaction affects the Tg of polymer films. As previously reported using a variety of methods, the Tg decreased with decreasing film thickness. However, the extent was not the same among the reports. In this study, we found that the Tg attenuation of a PS film of a given thickness was dependent on the oxide layer thickness of the silicon wafer via the long-range interaction.

Original languageEnglish
Pages (from-to)1317-1320
Number of pages4
JournalACS Macro Letters
Volume1
Issue number11
DOIs
Publication statusPublished - Nov 20 2012

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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