Dynamics Gradient of Polymer Chains near a Solid Interface

Hung K. Nguyen, Shin Sugimoto, Asuka Konomi, Manabu Inutsuka, Daisuke Kawaguchi, Keiji Tanaka

    研究成果: Contribution to journalArticle査読

    25 被引用数 (Scopus)

    抄録

    The relaxation dynamics of polyisoprene (PI) and nitrile butadiene rubber (NBR) chains at the SiO2 interface were directly probed as a function of distance from the SiO2 surface using time-resolved evanescent wave-induced fluorescence anisotropy, dielectric relaxation spectroscopy, and sum-frequency generation spectroscopy. We found the presence of the dynamics gradient of chains in the interfacial region with the SiO2 surface and tried to assign it to the two kinds of adsorbed chains, namely, loosely and strongly adsorbed, at the interface. The segmental relaxation of chains in the strongly adsorbed layer at the interface could be slower than that of bulk chains by more than 10 orders.

    本文言語英語
    ページ(範囲)1006-1011
    ページ数6
    ジャーナルACS Macro Letters
    8
    8
    DOI
    出版ステータス出版済み - 8 20 2019

    All Science Journal Classification (ASJC) codes

    • 有機化学
    • ポリマーおよびプラスチック
    • 無機化学
    • 材料化学

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