Investigation of acrylic acid at high pressure using neutron diffraction

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

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
114 Downloads (Pure)

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 rationalized 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 polymerizing on decompression to ambient pressure. The resulting product is analyzed via Raman and FT-IR spectroscopy and differential scanning calorimetry and found to possess a different molecular structure compared with polymers produced via traditional routes. 

Original languageEnglish
Pages (from-to)4044-4051
Number of pages8
JournalJournal of Physical Chemistry B
Volume118
Issue number14
DOIs
Publication statusPublished - 20 Mar 2014

Keywords

  • acrylic acid
  • neutron diffraction
  • acrylic acid-d4
  • Pixel method

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