Effect of interfaces on the crystallization behavior of PDMS

T. Dollase, M. Wilhelm, H. W. Spiess, Y. Yagen, R. Yerushalmi-Rozen, M. Gottlieb

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

The reversible thermal behavior of a non-entangled semicrystalline polymer, poly(dimethylsiloxane), PDMS, was investigated in the presence of sub-micron particles. Filled polymer systems of this type are characterized by a large surface-to-volume ratio but lack the external confinement that is typical for a thin film geometry. Differential-scanning calorimetry (DSC) measurements indicate that the presence of the nanometric solid additives enhances the crystallization rate as compared to native PDMS melts. Different types of additives and surface interactions resulted in a similar effect, suggesting that the origin of the enhanced crystallinity is non-specific. The effect is attributed to entropic interactions in the boundary layer.

Original languageEnglish
Pages (from-to)199-209
Number of pages11
JournalInterface Science
Volume11
Issue number2
DOIs
StatePublished - 1 Apr 2003

Keywords

  • Polymer crystallization
  • Surface effects in polymers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science (all)
  • Condensed Matter Physics

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