Polymorphism and polymerisation of acrylic and methacrylic acid at high pressure

Iain Oswald, Andrew Urquhart

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Abstract

The polymorphism and polymerisation of two related acids have been investigated under high pressure conditions. Acrylic acid crystallises as a new polymorph at 0.65 GPa whilst methacrylic acid crystallises in a new polymorph at a higher pressure of 1.5 GPa. Both these new polymorphs exhibit similar hydrogen bonding motifs to the low temperature phases, however, the molecular packing differs significantly.

Original languageEnglish
Pages (from-to)4503-4507
Number of pages5
JournalCrystEngComm
Volume13
Issue number14
Early online date25 May 2011
DOIs
Publication statusPublished - 2011

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Keywords

  • polymorphism
  • polymerisation
  • acids
  • high pressure conditions
  • molecular packing
  • TIC - Bionanotechnology

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