Chain flattening and infrared dichroism of adsorbed poly(ethylene oxide)

Erwin P. Enriquez, Steve Granick

Research output: Contribution to journalArticlepeer-review

Abstract

The adsorption of poly(ethylene oxide), PEO, from dilute solutions in 1 mM aqueous NaCl to germanium at 30°C, was investigated by polarized infrared spectroscopy in attenuated total internal reflection (ATR). PEO aggregation could be prevented with careful sample preparation. After adsorption, chain anisotropy was deduced from the C-O-C stretching vibrations along the polymer backbone and found to indicate substantial backbone alignment parallel to the surface.

Original languageEnglish (US)
Pages (from-to)11-17
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume113
Issue number1-2
DOIs
StatePublished - Aug 1 1996

Keywords

  • Adsorption
  • Chain anisotropy
  • Infrared dichroism
  • Poly(ethylene oxide)

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry

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