• Login
    View Item 
    •   Oxy Scholar Home
    • Chemistry
    • Chemistry URC Student Scholarship
    • View Item
    •   Oxy Scholar Home
    • Chemistry
    • Chemistry URC Student Scholarship
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Phase Transitions in Langmuir Films of C10-C16 Perfluorocarboxylic Acids at the Air-Water Interface

    Thumbnail
    Author
    Elshout, Josvan den
    Issue
    urc_student; urc_student
    Date
    2011-01-01 0:00
    Metadata
    Show full item record
    URI
    https://scholar.oxy.edu/handle/20.500.12711/791
    Abstract
    Perfluorocarboxylic acids (PFCAs) are important precursors in the syntheses of fluorinated polymers. These polymers find a variety of applications in industry due to their water and lipid repelling properties, chemical inertness, and facile processing. Non-stick coatings in cooking pans and gasoline tanks in cars are just two of many common applications that use these fluorinated compounds. Critically, it is the desirable property of chemical stability that prevents perfluorinated compounds from biodegradation. Recent research indicates that low levels of PFCAs (and other fluorinated compounds) are ubiquitous in the environment including the biosphere. How PFCAs interact with their local surroundings on a molecular scale is not fully understood, and the need for more fundamental measurements inspires this investigation. In our study, properties of monolayer films of C10-C16 perfluorocarboxylic acids at the air-water interface were measured. Using a Langmuir-Blodgett trough, the surface pressure of the deposited compound was recorded, while compressing the monolayer at constant temperature. The resulting isotherms are interpreted to determine phase transitions, molecular footprints and collapse pressures of the monolayers.
    Collections
    • Chemistry URC Student Scholarship

    Browse

    All of Oxy ScholarCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsJournal TitleJournal IssueThis CollectionBy Issue DateAuthorsTitlesSubjectsJournal TitleJournal Issue

    My Account

    LoginRegister

    DSpace software copyright © 2002-2021  DuraSpace
    Contact Us | Send Feedback
    DSpace Express is a service operated by 
    Atmire NV