A study of monolayers of asphalts at the air/water interface

R. M. Leblanc, F. C. Thyrion

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

Monolayers of desasphalted oil, asphalts C5 and asphaltene C7 were studied using pressure-area (π - A) isotherms. The asphalt(ene)s studied form stable monolayers at the air/water interface, indicating that the hydrophilic head group and hydrophobic tail are in the correct balance. Molecular weights determined by extrapolating the curves of πA versus π to π → 0were compared with molecular weights obtained from vapour pressure osmometry.

Original languageEnglish (US)
Pages (from-to)260-262
Number of pages3
JournalFuel
Volume68
Issue number2
DOIs
StatePublished - Feb 1989
Externally publishedYes

Keywords

  • asphaltene
  • surface properties
  • X-ray

ASJC Scopus subject areas

  • Organic Chemistry
  • Energy Engineering and Power Technology
  • Fuel Technology

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