Brillouin scattering study of glass-forming propylene glycol

S. Tsukada, Y. Ike, Jun Kano, S. Kojima

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The elastic properties of propylene glycol (PG) were studied by Brillouin scattering between 100 K and 442 K using a high-resolution Fabry-Perot interferometer. The acoustic phonon velocity, phonon damping, and relaxation time were measured as functions of temperature. At high temperatures, the temperature dependence of the relaxation time obeyed the Arrhenius law, τ = τ0 exp (ΔE/kBT). We obtained ΔE = 0.27 eV and τ0 = 6.40 × 10-16 s. The dynamical properties between racemic PG and chiral isomer (S)-PG were compared and small differences, which were within the experimental uncertainty, were observed. These differences were attributed to the molecular interaction, which played an important role in relaxation. Neither material displayed an elastic anomaly at its melting point.

Original languageEnglish
Pages (from-to)379-382
Number of pages4
JournalMaterials Science and Engineering A
Volume442
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - Dec 20 2006
Externally publishedYes

Fingerprint

Brillouin scattering
Propylene Glycol
Glycols
propylene
Propylene
glycols
Glass
Relaxation time
glass
relaxation time
scattering
Fabry-Perot interferometers
Molecular interactions
molecular interactions
Isomers
Temperature
melting points
Melting point
isomers
elastic properties

Keywords

  • Brillouin scattering
  • Chiral isomer
  • Liquid-glass transition
  • Lower alcohol
  • Propylene glycol

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Brillouin scattering study of glass-forming propylene glycol. / Tsukada, S.; Ike, Y.; Kano, Jun; Kojima, S.

In: Materials Science and Engineering A, Vol. 442, No. 1-2 SPEC. ISS., 20.12.2006, p. 379-382.

Research output: Contribution to journalArticle

Tsukada, S. ; Ike, Y. ; Kano, Jun ; Kojima, S. / Brillouin scattering study of glass-forming propylene glycol. In: Materials Science and Engineering A. 2006 ; Vol. 442, No. 1-2 SPEC. ISS. pp. 379-382.
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