Melting of short 1-alcohol monolayers on water: Thermodynamics and x-ray scattering studies

B. Berge, O. Konovalov, J. Lajzerowicz, A. Renault, J.P. Rieu, M. Vallade, J. Als-Nielsen, G. Grübel, J.F. Legrand

    Research output: Contribution to journalJournal articleResearch

    Abstract

    From surface tension measurements we extract the melting entropy Delta S-2D of fatty-alcohol monolayers on water. Delta S-2D is found to be 4(kB)/mol lower than in the bulk. Because of the role of the conformational entropy, the melting transition is discontinuous for long chains, but tends to be continuous for molecules shorter than 1-nonanol. For 1-decanol Delta S-2D is sufficiently small to allow observation of critical fluctuations; the diffraction peak, measured with a high resolution synchrotron experiment, is described by a power-law singularity which broadens as the temperature approaches the melting point.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume73
    Issue number12
    Pages (from-to)1652-1655
    ISSN0031-9007
    DOIs
    Publication statusPublished - 1994

    Fingerprint Dive into the research topics of 'Melting of short 1-alcohol monolayers on water: Thermodynamics and x-ray scattering studies'. Together they form a unique fingerprint.

    Cite this