1981•ACS symposium seriesRequires access
The Relationship Between the Electrophoretic Mobility and the A dsorption of Ions on Polystyrene Latex
Carmen A. Olivares M., Fortunato J. Micale, Mohamed S. El‐Aasser, John W. Vanderhoff
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Abstract
The stability of latexes is important for many industrial applications and in theoretical research. One of the measures of the stability is the electrophoretic mobility or zeta potential of the latex particle. Thus far the chemisorbed surface charge groups have been considered as the dominant factor determine the ζ potential. In a previous paper (1), we concluded that the origin of surface charge on polystyrene latex was not simply the charged ionizable groups on the surface of the latex particle,and that the hydrophobic surface of the latex might be playing a more significant role in the origination of the surface charge. In this work, the relationship between electrophoretic mobility and surface charge of latexes, especially the effect of the adsorption of ions from solution on the electrophoretic mobility of polystyrene latex particles, was investigated in more detail. The possible mechanisms of the origination of the surface charge on latex particles