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

    44 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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