Conformational fluctuations of polymers in a melt associated with glass transition

Nobuyuki Iwaoka, Hiroshi Takano

Research output: Contribution to journalArticle

Abstract

The conformational fluctuations of a glassy short polymer melt are studied by coarse-grained molecular dynamics simulations and principal component analysis (PCA). The distribution of PCA eigenvalues, which measure static fluctuations of the polymers, shows a clear difference between above and below the conventional glass transition temperature Tg. The approximate conformational entropy of the polymers also indicates a transition near Tg. This is evidence that the static properties of polymers in the melt signal the glass transition.

Original languageEnglish
Article number035002
JournalJournal of the Physical Society of Japan
Volume86
Issue number3
DOIs
Publication statusPublished - 2017

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glass
polymers
principal components analysis
glass transition temperature
eigenvalues
entropy
molecular dynamics
simulation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Conformational fluctuations of polymers in a melt associated with glass transition. / Iwaoka, Nobuyuki; Takano, Hiroshi.

In: Journal of the Physical Society of Japan, Vol. 86, No. 3, 035002, 2017.

Research output: Contribution to journalArticle

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