caa a22 4500 475763998 CHVBK 20180406123559.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1007/s003960000384 doi (NATIONALLICENCE)springer-10.1007/s003960000384 Evidence for hydrophobic attraction between latex particles in aqueous systems as investigated by turbidimetry [Elektronische Daten] [A. Weiss, M. Ballauff] We report the evidence for attractive interaction of latex particles which are covered by poly(ethylene oxide) chains. These particles are suspended in aqueous solutions of ammonium sulfate. The interaction is probed by measurements of the turbidity of the suspensions up to 70 g/l. Turbidity is insensitive to multiple scattering and allows the static structure factor, S(q) [q=(4πn 0/λ0)sin(θ/2), where θ is the scattering angle, n0 is the refractive index of the medium and λ0 is the wavelength in vacuo], to be determined at small q values. The analysis of S(q) at small q values yields information about possible attraction of the particles. The analysis of the turbidity data furthermore shows that no aggregation took place in these systems. A weak but long-range attractive interaction was found at ammonium sulfate concentrations of 0.01 and 0.1 M. The relation of this attractive force to hydrophobic forces is discussed. Springer-Verlag Berlin Heidelberg, 2000 Key words Turbidity nationallicence Light scattering nationallicence Hydrophobic attraction nationallicence Structure factor nationallicence HMSA nationallicence Weiss A. Polymer-Institut, Universität Karlsruhe Kaiserstrasse 12, 76128 Karlsruhe Germany, DE aut Ballauff M. Polymer-Institut, Universität Karlsruhe Kaiserstrasse 12, 76128 Karlsruhe Germany, DE aut https://doi.org/10.1007/s003960000384 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960000384 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Weiss A. Polymer-Institut, Universität Karlsruhe Kaiserstrasse 12, 76128 Karlsruhe Germany, DE aut NATIONALLICENCE 700 1- Ballauff M. Polymer-Institut, Universität Karlsruhe Kaiserstrasse 12, 76128 Karlsruhe Germany, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer