Ultrathin polymer films: Interfacial and annealing dependence of confinement effects

Daniele Prevosto, Kim Hung Nguyen, Massimiliano Labardi, Simone Capaccioli, Mauro Lucchesi, Pierangelo Rolla

    研究成果: Conference contribution

    抄録

    Ultrathin film of poly (vinyl acetate) supported on different metallic substrates have been investigated to study confinement effects on relaxation dynamics. The characteristic frequency of structural relaxation increases on decreasing thickness when the interfacial energy is less than roughly 3 mJ/m2, whereas it is thickness independent at about 3.5 mJ/m 2. The growth of an interfacial polymer layer, insoluble in the commonly used solvent, has been found to grow during annealing for several days at a temperature much above the glass transition. The presence of such layer reduces the average confinement effect on the film. Such finding seems to reconcile several contradicting results previously reported.

    本文言語English
    ホスト出版物のタイトル6th International Conference on Times of Polymers (TOP) and Composites
    ページ58-60
    ページ数3
    1
    DOI
    出版ステータスPublished - 2012 12 1
    イベント6th International Conference on Times of Polymers (TOP) and Composites - Ischia, Italy
    継続期間: 2012 6 102012 6 14

    出版物シリーズ

    名前AIP Conference Proceedings
    番号1
    1459
    ISSN(印刷版)0094-243X
    ISSN(電子版)1551-7616

    Other

    Other6th International Conference on Times of Polymers (TOP) and Composites
    国/地域Italy
    CityIschia
    Period12/6/1012/6/14

    ASJC Scopus subject areas

    • 物理学および天文学(全般)

    フィンガープリント

    「Ultrathin polymer films: Interfacial and annealing dependence of confinement effects」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

    引用スタイル