• Rescaled mean spherical approximation structure factor for an aqueous suspension of polystyrene spheres

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      https://www.ias.ac.in/article/fulltext/pram/039/06/0589-0595

    • Keywords

       

      Structure factor; surface potential

    • Abstract

       

      Rescaled mean spherical approximation (RMSA) has been used to calculate the structure factor for the aqueous suspension of polystyrene macroions with the interaction potential taken according to Derjaguin and Landau (1941) and Verwey and Overbeek (1948) (DLVO) model. The effects of charge over the macroion and size on the surface potential and therefore, the structure factor have been studied. The breakdown of the DLVO potential with an excess charge over the macroion (⩾800e) has been reported. The oscillation in the first peak height of structure factor versus wave vector curve with size has been correlated with the Debye length.

    • Author Affiliations

       

      R K Pandey1 D N Tripathi1

      1. Department of Physics, Banaras Hindu University, Varanasi - 221 005, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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