Time- And space-resolved fluorescence study on interfacial mobility of polymers

Keiji Tanaka, Yu Tsuchimura, Kei Ichi Akabori, Fuyuki Ito, Toshihiko Nagamura

    研究成果: ジャーナルへの寄稿学術誌査読

    31 被引用数 (Scopus)

    抄録

    Segmental mobility of a typical amorphous polymer, polystyrene, at the interface with a solid substrate was examined noninvasively by fluorescence lifetime measurement using evanescent wave excitation. Glass transition temperature (Tg) was discernibly higher at the interface than in the bulk. Measurements at different incident angles of excitation pulses revealed that Tg became higher the closer to the interface. This is the observation for a Tg gradient of polymers at the interface.

    本文言語英語
    論文番号061916
    ジャーナルApplied Physics Letters
    89
    6
    DOI
    出版ステータス出版済み - 2006

    !!!All Science Journal Classification (ASJC) codes

    • 物理学および天文学(その他)

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