Dendrimer and polystyrene surfactant structure at the air-water interface

P. M. Saville, J. W. White*, C. J. Hawker, K. L. Wooley, J. M J Fréchet

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

The Π-A isotherms at the air-water interface and 25°C for monomolecular films of the recently synthesized dendrimer surfactants are reported and compared with those of polystyrene terminated with a single hydroxyl group. There is a strong dependence of the isotherms on molecular weight (MW) for both systems, the lower MWs typified by an increase in the surface pressure through a liquid expanded phase, followed by a peaked collapse transition, indicating a nucleation and growth process, to a liquid condensed, phase. The higher molecular weight dendrimer and polystyrene isotherms are also similar, with a steep increase in the surface pressure being due to a direct transition to a solid phase.

Original languageEnglish (US)
Pages (from-to)293-294
Number of pages2
JournalJournal of Physical Chemistry
Volume97
Issue number2
StatePublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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