Investigation of Acrylic Acid at High Pressure using Neutron Diffraction.

Blair F. Johnston, William G. Marshall, Simon Parsons, Andrew Urquhart, Iain D.H. Oswald

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    This article details the exploration of perdeuterated acrylic acid at high pressure using neutron diffraction. The structural changes that occur in acrylic acid-d4 are followed via diffraction and rationalised using the Pixel method. Acrylic acid undergoes a reconstructive phase transition to a new phase at ~0.8 GPa and remains molecular to 7.2 GPa before polymerising on decompression to ambient pressure. The resulting product is analysed via Raman, FT-IR spectroscopy and Differential Scanning Calorimetry and found to possess a different molecular structure compared with polymers produced via traditional routes.
    Original languageEnglish
    JournalThe Journal of Physical Chemistry B
    Volume118
    Issue number14
    Pages (from-to)4044-4051
    ISSN1520-5207
    DOIs
    Publication statusPublished - 2014

    Cite this