Interfacial dynamics of poly(methyl methacrylate) in water

Ayanobu Horinouchi, Yoshihisa Fujii, Keiji Tanaka

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

    Abstract

    Aggregation states of polymers at the surface generally tend to alter to their most stable ones in response to their surrounding environment. We here apply a time-resolved contact angle measurement to examine the rate of the surface reorganization of poly(methyl methacrylate) (PMMA) in water. By doing these measurements at various temperatures, it is possible to extract the apparent activation energy of the surface dynamics based on the relation of the surface relaxation time and temperature. Also, sum-frequency generation spectroscopy revealed that the surface reorganization involves the conformational changes in the main chain portion as well as the side chains. Hence, the dynamics observed here might reflect the segmental motion at the outermost region of the PMMA film, in which water plays as a plasticizer.

    Original languageEnglish
    Title of host publication4th International Symposium on Slow Dynamics in Complex Systems
    Subtitle of host publicationKeep Going Tohoku
    Pages459-461
    Number of pages3
    DOIs
    Publication statusPublished - Mar 12 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)

    Fingerprint

    Dive into the research topics of 'Interfacial dynamics of poly(methyl methacrylate) in water'. Together they form a unique fingerprint.

    Cite this