Internal structure of a thin film of mixed polymeric micelles on a solid/liquid interface

Ilja K. Voets, Wiebe M. De Vos, Bas Hofs, Arie De Keizer, Martien A. Conhen Stuart, Roland Steitz, Dieter Lott

Research output: Contribution to journalArticleAcademicpeer-review

22 Citations (Scopus)


The adsorption of mixed micelles of poly(4-(2-amino hydrochloride- ethylthio)-butylene)-block-poly(ethylene oxide), PAETB49-b-PEO 212 and poly(4-(2-sodium carboxylate-ethylthio)-butylene)-block- poly(ethylene oxide), PCETB47-b-PEO212 on solid/liquid interfaces has been studied with light, X-ray, and neutron reflectometry. The structure of the adsorbed layer can be described with a two-layer model consisting of an inner layer formed by the coacervate of the polyelectrolyte blocks PAETB49 and PCETB47 (∼1 nm) and an outer layer of PEO212 blocks (∼6 nm). The micelles unfold upon adsorption forming a rather homogeneous flat layer that exposes its polyethylene oxide chains into the solution, thus rendering the surface antifouling after modification with the micelles.

Original languageEnglish
Pages (from-to)6937-6945
Number of pages9
JournalThe Journal of physical chemistry B
Issue number23
Publication statusPublished - 12 Jun 2008
Externally publishedYes


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