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The stability of silver iodide sols in the presence of polyacrylic acids of various molecular weights

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Summary

The effect of a series of polyacrylic acids, ranging in molecular weight from 1.67×104 to 2.36×106, on the stability of positively charged silver iodide particles has been examined. Flocculation of the sol occurred at a well defined concentration of polyacrylic acid,c f , and a further increase in concentration of the polyelectrolyte caused restabilization of the sol. Over the range examinedc f appeared to be related to the viscosity average molecular weight of the acid,M v , by an equation of the form,c f =a ·M v − b wherea andb are constants.

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Author notes

  1. D. J. A. Williams

    Present address: Department of Civil Engineering, University of Dundee, Dundee, Scotland

  2. R. H. Ottewill

    Present address: School of Chemistry, University of Bristol, Bristol, England

Authors and Affiliations

  1. Department of Civil Engineering, University of Dundee, Dundee, Scotland

    R. H. Ottewill

  2. School of Chemistry, University of Bristol, Bristol, England

    D. J. A. Williams

Authors
  1. D. J. A. Williams
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  2. R. H. Ottewill
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Williams, D.J.A., Ottewill, R.H. The stability of silver iodide sols in the presence of polyacrylic acids of various molecular weights. Kolloid-Z.u.Z.Polymere 243, 141–147 (1971). https://doi.org/10.1007/BF01521136

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  • DOI: https://doi.org/10.1007/BF01521136

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