title: Surfactant/Nonionic polymer interaction. A NMR diffusometry and NMR electrophoretic investigation.
abstract: The interaction between the nonionic polymer poly(ethylene oxide) (PEO) of molecular weight 20,000 and surfactants of various types [sodium dodecyl sulfate (SDS), dodecyl trimethylammonium bromide, octyl beta-D-glucoside, and potassium laurate] has been investigated in an aqueous solution at 25 degrees C by 1H NMR pulsed-gradient spin-echo self-diffusion techniques. The SDS/PEO study was further complemented by component-resolved 1H NMR-based studies of the electrophoretic mobility of PEO and the alkyl part of SDS under the same measurement conditions. Through such combined studies, a much more complete picture of the binding and aggregation processes becomes accessible.
authors.affiliation: Physical Chemistry, Royal Institute of Technology, SE-10044 Stockholm, Sweden.
authors.forename: Erik
authors.initials: E
authors.lastname: Pettersson
authors.forename: Daniel
authors.initials: D
authors.lastname: Topgaard
authors.forename: Peter
authors.initials: P
authors.lastname: Stilbs
authors.forename: Olle
authors.initials: O
authors.lastname: Söderman