Density and other thermodynamic properties of the binary systems of tetrahydrofuran+ethenyl ethanoate, methacrylic acid, butyl methacrylate, and allyl methacrylate at 298.15K

René D. Peralta, Ramiro Infante, Gladis Cortez, Jaime Wisniak

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Densities of the binary systems of tetrahydrofuran (THF) with ethenyl ethanoate (vinyl acetate), methacrylic acid, butyl methacrylate, and allyl methacrylate have been measured as a function of the composition, at 298.15 K and atmospheric pressure, using an Anton Paar DMA 5000 oscillating U-tube densimeter. The calculated excess volumes were correlated with the Redlich-Kister equation and with a series of Legendre polynomials. The excess volumes are negative for the three binaries methacrylic acid + tetrahydrofuran, butyl methacrylate + tetrahydrofuran, and allyl methacrylate + tetrahydrofuran, and become smaller as the solute becomes more branched or longer. Methacrylic acid exhibits substantially larger negative excess volumes probably due to hydrogen bonding with the solvent. The system tetrahydrofuran + vinyl acetate presents near ideal behavior.

Original languageEnglish
Pages (from-to)249-259
Number of pages11
JournalPhysics and Chemistry of Liquids
Volume43
Issue number3
DOIs
StatePublished - 1 Jun 2005

Keywords

  • Densities
  • Excess volumes
  • Methacrylates
  • Tetrahydrofuran
  • Vinyl acetate

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