Relaxation of polystyrene at interface with solid substrate

Hirofumi Tsuruta, Yoshihisa Fujii, Masao Doi, Hiroshi Morita, Keiji Tanaka

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    The local conformation of polymer chains in a film at the interface with a substrate was studied by sumfrequency generation spectroscopy. When a polystyrene (PS) film was prepared on a quartz substrate by a spin-coating method, the chains were aligned in the interfacial plane of the substrate. This interfacial orientation of chains was not observed for a PS film prepared by a solvent-casting method. The local conformation of chains at the substrate interface was interestingly unchanged even at a temperature that was 80 K higher than the bulk glass transition temperature. This observation indicates that polymer chains at the substrate interface can be only partially relaxed under conditions where the bulk chains are fully relaxed. On the other hand, interfacial chains could be easily relaxed by the solvent annealing.

    Original languageEnglish
    Title of host publication4th International Symposium on Slow Dynamics in Complex Systems
    Subtitle of host publicationKeep Going Tohoku
    Pages462-465
    Number of pages4
    DOIs
    Publication statusPublished - 2013
    Event4th International Symposium on Slow Dynamics in Complex Systems: Keep Going Tohoku - Sendai, Japan
    Duration: Dec 2 2012Dec 7 2012

    Publication series

    NameAIP Conference Proceedings
    Volume1518
    ISSN (Print)0094-243X
    ISSN (Electronic)1551-7616

    Other

    Other4th International Symposium on Slow Dynamics in Complex Systems: Keep Going Tohoku
    Country/TerritoryJapan
    CitySendai
    Period12/2/1212/7/12

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

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