Investigation of Acrylic Acid at High Pressure Using Neutron Diffraction
作者： Blair F. Johnston , William G. Marshall , Simon Parsons , Andrew J. Urquhart , Iain D. H. Oswald
DOI: 10.1021/JP502095N
关键词: Materials science 、 Differential scanning calorimetry 、 Analytical chemistry 、 Diffraction 、 Phase (matter) 、 Neutron diffraction 、 Ambient pressure 、 Raman spectroscopy 、 Acrylic acid 、 Polymer
摘要: This article details the exploration of perdeuterated acrylic acid at high pressure using neutron diffraction. The structural changes that occur in acid-d4 are followed via diffraction and rationalized Pixel method. Acrylic undergoes a reconstructive phase transition to new ∼0.8 GPa remains molecular 7.2 before polymerizing on decompression ambient pressure. resulting product is analyzed Raman FT-IR spectroscopy differential scanning calorimetry found possess different structure compared with polymers produced traditional routes.
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