Edinburgh Research Explorer

Bottle-brush polymers: Adsorption at surfaces and interactions with surfactants

Research output: Contribution to journalArticle

  • P. M. Claesson
  • R. Makuska
  • I. Varga
  • R. Meszaros
  • S. Titmuss
  • P. Linse
  • J. Skov Pedersen
  • Cosima Stubenrauch

Related Edinburgh Organisations

Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalAdvances in Colloid and Interface Science
Volume155
Issue number1-2
DOIs
Publication statusPublished - 25 Mar 2010

Abstract

Solution and adsorption properties of both charged and uncharged bottle-brush polymers have been investigated. The solution conformation and interactions in solution have been investigated by small-angle scattering techniques. The association of the bottle-brush polymers with anionic surfactants has also been studied. Surfactant binding isotherm measurements, NMR, surface tension measurements, as well as SAXS, SANS and light scattering techniques were utilized for understanding the association behaviour in bulk solutions. The adsorption of the bottle-brush polymers onto oppositely charged surfaces has been explored using a battery of techniques, including reflectometry, ellipsometry, quartz crystal microbalance, and neutron reflectivity. The combination of these techniques allowed determination of adsorbed mass, layer thickness, water content, and structural changes occurring during layer formation. The adsorption onto mica was found to be very different to that on silica, and an explanation for this was sought by employing a lattice mean-field theory. The model was able to reproduce a number of salient experimental features characterizing the adsorption of the bottle-brush polymers over a wide range of compositions, spanning from uncharged bottle-brushes to linear polyelectrolytes. This allowed us to shed light on the importance of electrostatic surface properties and non-electrostatic surface-polymer affinity for the adsorption. The interactions between bottle-brush polymers and anionic surfactants in adsorbed layers have also been elucidated using ellipsometry, neutron reflectivity and surface force measurements. (C) 2010 Elsevier B.V. All rights reserved.

    Research areas

  • Bottle-brush polymers, Synthesis, Solution properties, Adsorption, Interactions with surfactants, Surface forces, Self-consistent lattice mean-field model, POLY(L-LYSINE)-G-POLY(ETHYLENE GLYCOL) LAYERS, NONSPECIFIC PROTEIN ADSORPTION, OPPOSITELY CHARGED SURFACTANT, SODIUM DODECYL-SULFATE, METAL-OXIDE SURFACES, POLY(ETHYLENE OXIDE), SIDE-CHAIN, VISCOELASTIC PROPERTIES, IONIC-STRENGTH, POLYELECTROLYTE

ID: 1406655