Abstract
The adsorption of poly(ethylene oxide) (PEO) molecules decreases the electrokinetic potential of a quartz surface. The corresponding change in electrostatic forces may influence the interaction between colloidal particles in polymer solutions. The equilibrium between flowing PEO solution and adsorption layers in thin quartz capillaries is established after 1–2 h. The kinetics may be controlled by the attachment and reconformation of polymer molecules in the adsorbed layers. The saturated adsorption layers of PEO are easily deformed under the action of the shear stress of the flowing solution. The effect of shear stress requires further investigation using joint measurements of the adsorption and the hydrodynamic and electrokinetic thicknesses of the adsorption layers. The thin quartz capillaries represent a simple model system with a well-characterized geometry and a molecularly smooth surface. Capillary electrokinetics may effectively be used for the investigation of electrosurface phenomena in polymer solutions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Colloids and Surfaces A: Physicochemical and Engineering Aspects
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
