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Investigation of acrylic acid at high pressure using neutron diffraction.


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.

SUBMITTER: Johnston BF 

PROVIDER: S-EPMC3994943 | biostudies-literature |

REPOSITORIES: biostudies-literature

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