Molecular engineering of the glass transition: Glass-forming ability across a homologous series of cyclic stilbenes

Wen Ping, Daniel Paraska, Robert Baker, Peter Harrowell, Charles Angell

Research output: Contribution to journalArticle

32 Scopus citations

Abstract

We report on the glass-forming abilities of the homologous series 1,2-diphenylcyclo-butene, pentene, hexene and heptene-a series that retains the cis-phenyl configuration characteristic of the well-studied glass former, o-terphenyl. We find that the glass-forming ability shows a sharp maximum for the six-membered ring and demonstrate that this trend in glass-forming ability is a consequence of a maximum, for the 1,2-diphenylcyclohexene, of the reduced glass transition temperature Tg/Tm. Since the nonmonotonic trend in Tg/Tm is entirely due to variations in T m, we conclude that the design target for maximizing the glass-forming ability across an homologous series should focus on the crystal stability and the factors that determine it.

Original languageEnglish (US)
Pages (from-to)4696-4702
Number of pages7
JournalJournal of Physical Chemistry B
Volume115
Issue number16
DOIs
StatePublished - Apr 28 2011

ASJC Scopus subject areas

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

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