Surface and colloid properties of cyclic amides III. Surface activity and micellization of N-butyl-2-pyrrolidone in water

Anjing Lou, Brian A. Pethica, P. Somasundaran, Aixing Fan

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The aggregation and surface activity of N-butyl-2-pyrrolidone (BP) in water is investigated using surface tension, solubilization, fluorescence and NMR methods. The micelle point is high (∼1.0 M) as expected for the butyl chain length, and the aggregation number is approximately 5, with pre-association below the c.m.c. Despite the low aggregation number, the fluorescence data indicate that the interior of the aggregate is similar to pure liquid BP. The adsorption of BP at the solution/air interface goes to a maxmum near the c.m.c., corresponding to an area of 45 ± 1 Ȧ2/molecule.

Original languageEnglish (US)
Pages (from-to)569-580
Number of pages12
JournalJournal of Dispersion Science and Technology
Volume20
Issue number1-2
DOIs
StatePublished - Jan 1 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics

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