Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 21, 2004
Previous Article Next Article

Adsorption kinetics of ammonium perfluorononanoate at the air–water interface

Author affiliations


The adsorption of the fluorocarbon surfactant, ammonium perfluorononanoate (APFN) has been studied in an overflowing cylinder (OFC). The equilibrium adsorption isotherm, determined by drop shape tensiometry, is well-described by the Volmer isotherm. The dynamic surface excess at the expanding surface of the OFC was measured by neutron reflectometry (NR). The dynamic surface excess was in good agreement with the predictions of a diffusion-controlled adsorption model. Significant Marangoni effects were observed. The relationship between the mass transport equation in the OFC and the short and long-time asymptotes of the Ward–Tordai equation is noted.

Back to tab navigation

Publication details

The article was received on 19 Jul 2004, accepted on 09 Sep 2004 and first published on 21 Sep 2004

Article type: Paper
DOI: 10.1039/B411044G
Citation: Phys. Chem. Chem. Phys., 2004,6, 5061-5065

  •   Request permissions

    Adsorption kinetics of ammonium perfluorononanoate at the air–water interface

    M. Sekine, R. A. Campbell, D. S. Valkovska, J. P. R. Day, T. D. Curwen, L. J. Martin, S. A. Holt, J. Eastoe and C. D. Bain, Phys. Chem. Chem. Phys., 2004, 6, 5061
    DOI: 10.1039/B411044G

Search articles by author