DOI > 10.5291/ILL-DATA.9-12-381

This proposal is publicly available since 07/27/2020


Understanding the properties of mixtures of rigid polyelectrolytes and surfactants at the air-water interface


The surface properties of polyelectrolyte (PE)/surfactant mixtures play an important role in the performance and stability of lots of colloidal dispersions in common consumer products (e.g. foams and emulsions). The interfacial composition and structure of flexible PE/surfactant mixtures have been investigated extensively over the years using neutron reflectivity (NR) measurements. We have recently completed a study on the relation between the interfacial composition and the foaming properties of a mixture involving a very flexible PE, PAMPS/C14TAB. Insight into the complex correlations was gained, but the influence of the polymer chain conformation on the surface properties and foam stability is not yet clear. Thus, we propose to build on the findings of the former studies by investigating the interfacial composition and structure of a rigid PE/surfactant mixture on FIGARO. The system is question is sulphonated poly(phenylene sulfone) (S220)/C14TAB mixtures: S220 is stiffer than in PAMPS but it has the same headgroup. We have complementary data on the system already, but the correlations with the interfacial composition are missing.

Experimental Report

Download Data

Please note that you will need to login with your ILL credentials to download the data.

Download Data

Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

UHLIG Martin; Richard A. Campbell; KREUER Klaus Dieter; LOEHMANN Oliver; VARGAS RUIZ Salome and VON KLITZING Regine. (2015). Understanding the properties of mixtures of rigid polyelectrolytes and surfactants at the air-water interface. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-12-381

Cited by

This data has not been cited by any articles.


Experiment Parameters

  • Environment temperature

    room temperature
  • Experiment energy

    2-30 A
  • Experiment moment

    0.005-0.4 A-1
  • Experiment res energy

    7 %
  • Experiment res moment


Sample Parameters

  • Formula

    • deuterated water (D2O)
    • tetradecyltrimethylammonium bromide
    • Sulfonated Poly(phenylene sulfone)
    • tetradecyltrimethylammonium bromide (deuterated)