Adhesive hard-sphere colloidal dispersions. III. Stickiness in n-dodecane and benzene

  • P. W. Rouw
  • A. Vrij
  • C. G. de Kruif
Part of the Progress in Colloid & Polymer Science book series (PROGCOLLOID, volume 76)


Dispersions of silica particles coated with octadecyl chains show different phase separation behaviour when dispersed in benzene and n-dodecane. This difference is shown by measurements of the second virial coefficient as a function of temperature. The difference also follows from dynamic light scattering experiments and measurement of the cloudpoint.

Attraction between silica particles in benzene is attributed to solvent-chain interaction. There seems to be extra attraction between the particles when they are dispersed in n-dodecane.

Key words

Silica particles with octadecylchains dispersions in benzene and n-dodecane second virial coefficient temperature influence dynamic light scattering cloudpoint attractive effects 


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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG 1988

Authors and Affiliations

  • P. W. Rouw
    • 1
  • A. Vrij
    • 1
  • C. G. de Kruif
    • 1
  1. 1.Van ’t Hoff LaboratoryUniversity of UtrechtUtrechtThe Netherlands

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