Binary glass-forming materials: Mixtures of sorbitol and glycerol

Kalyan Duvvuri, Ranko Richert

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

The dynamics of sorbitol/glycerol mixtures across the entire composition range has been characterized by dielectric relaxation measurements for frequencies between 10 mHz and 10 MHz. We explore the gradual change in the glass transition temperature (T g), fragility (m), nonexponentiality (β KWW), and occurrence of a secondary Johari-Goldstein type relaxation as a function of the mole fraction. Regarding the crystallization tendency at room temperature and the freezing of molecular motion below T g, these mixtures differ qualitatively from aqueous solutions of sugars or other polyols.

Original languageEnglish (US)
Pages (from-to)10451-10456
Number of pages6
JournalJournal of Physical Chemistry B
Volume108
Issue number29
DOIs
StatePublished - Jul 22 2004

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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